CN114079299A - Battery assembly, charging and discharging method and device thereof, and mobile terminal - Google Patents
Battery assembly, charging and discharging method and device thereof, and mobile terminal Download PDFInfo
- Publication number
- CN114079299A CN114079299A CN202010802902.2A CN202010802902A CN114079299A CN 114079299 A CN114079299 A CN 114079299A CN 202010802902 A CN202010802902 A CN 202010802902A CN 114079299 A CN114079299 A CN 114079299A
- Authority
- CN
- China
- Prior art keywords
- battery
- circuit board
- flexible circuit
- current
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007600 charging Methods 0.000 title claims abstract description 197
- 238000007599 discharging Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 description 17
- 230000020169 heat generation Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010280 constant potential charging Methods 0.000 description 4
- 238000010277 constant-current charging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010278 pulse charging Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The disclosure relates to a battery assembly, a charging and discharging method, a charging and discharging device and a mobile terminal thereof, wherein the battery assembly comprises a battery body; the battery protection plate is arranged at one end of the battery body and is electrically connected with the output end of the electrode of the battery body; a first flexible circuit board and a second flexible circuit board electrically connected to the battery protection board in parallel; and a path selection module which selects at least one of the first flexible circuit board and the second flexible circuit board as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature. The charging temperature rise during large-current charging can be reduced, the charging time is shortened, the battery discharge capacity during low-temperature discharging is improved, and the user experience is improved.
Description
Technical Field
The disclosure relates to the technical field of batteries, and in particular relates to a battery assembly, a charging and discharging method and device thereof, and a mobile terminal.
Background
With the increasingly higher configuration of mobile terminals such as mobile phones and tablet computers, the power consumption is increasingly higher, and the requirements on the battery capacity and the battery charging and discharging speed are also increasingly higher. Therefore, the rapid charging mode is developed, and the charging current in the rapid charging process can reach 6A and 8A, and can even reach larger. However, as the charging current increases, the heat generation amount of the battery inevitably increases accordingly. When the temperature of the battery rises to a certain temperature, the temperature of the battery needs to be prevented from being excessively increased by reducing the charging speed, so that the user experience is reduced.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a battery assembly, a charging and discharging method and a charging and discharging apparatus thereof, and a mobile terminal.
According to a first aspect of embodiments of the present disclosure, there is provided a battery assembly including a battery body; the battery protection plate is arranged at one end of the battery body and is electrically connected with the output end of the electrode of the battery body; a first flexible circuit board and a second flexible circuit board electrically connected to the battery protection board in parallel; and a path selection module which selects at least one of the first flexible circuit board and the second flexible circuit board as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature.
In one embodiment of the present disclosure, the first flexible circuit board is attached to one end of the battery protection board along a length direction of the battery protection board; the second flexible circuit board is attached to one surface of the battery body.
In an embodiment of the disclosure, the path selection module is configured to: when the charging current is larger than the preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to be used as current conducting paths to charge the battery body; when the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board as a current conduction path to charge the battery body.
In an embodiment of the present disclosure, when the charging current is greater than the preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to simultaneously serve as a current conduction path to charge the battery body, including: the first flexible circuit board and the second flexible circuit board share the charging current on average to charge.
In an embodiment of the present disclosure, the battery assembly further includes a temperature sensor that detects a battery temperature and transmits the battery temperature to the routing module.
In an embodiment of the disclosure, the path selection module is further configured to: when the temperature detected by the temperature sensor is greater than or equal to the preset temperature, the path selection module selects the first flexible circuit board as a current conduction path to discharge the battery body; when the temperature detected by the temperature sensor is lower than the preset temperature, the path selection module selects the second flexible circuit board as a current conduction path to discharge the battery body.
In one embodiment of the present disclosure, the area of the first flexible circuit board is less than or equal to 25% of the area of the battery protection board; the area of the second flexible circuit board accounts for 50% to 90% of the area of the surface of the battery body.
In an embodiment of the present disclosure, a groove is disposed on a surface of the battery body, and the second flexible circuit board is attached in the groove.
In one embodiment of the present disclosure, one end of the battery body is provided with a step portion, and the battery protection plate is fixed to the step portion.
In one embodiment of the present disclosure, one end of the battery body is provided with a stepped portion, and the temperature sensor is provided on the stepped portion.
In one embodiment of the present disclosure, the routing module is integrated on the battery protection plate.
According to a second aspect of the embodiments of the present disclosure, there is provided a mobile terminal including a battery pack, the battery pack being as in any one of the above embodiments; and the battery assembly is electrically connected to the charge-discharge module of the terminal mainboard.
According to a third aspect of the embodiments of the present disclosure, there is provided a charging and discharging method of a battery assembly, including: acquiring at least one of a charging current and a battery temperature of the battery assembly; and selecting at least one of a first flexible circuit board and a second flexible circuit board arranged in the battery assembly as a current conducting path to charge and discharge the battery body according to at least one of the charging current and the battery temperature.
In an embodiment of the present disclosure, selecting at least one of a first flexible circuit board and a second flexible circuit board provided in a battery pack as a current conduction path to charge and discharge a battery body according to at least one of a charging current and a battery temperature includes: when the charging current is larger than the preset current, the first flexible circuit board and the second flexible circuit board are selected to be used as current conducting paths to charge the battery body; and when the charging current is less than or equal to the preset current, the first flexible circuit board is selected as a current conduction path to charge the battery body.
In an embodiment of the present disclosure, when the charging current is greater than the preset current, selecting the first flexible circuit board and the second flexible circuit board as the current conducting path to charge the battery body at the same time includes: the first flexible circuit board and the second flexible circuit board share the charging current on average to charge.
In one embodiment of the present disclosure, the battery temperature is detected by a temperature sensor; when the detected battery temperature is greater than or equal to a preset temperature, the first flexible circuit board is selected as a current conduction path to discharge the battery body; and when the detected battery temperature is lower than the preset temperature, selecting the second flexible circuit board as a current conduction path to discharge the battery body.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a charging and discharging apparatus for a battery assembly, including an obtaining module configured to obtain at least one of a charging current and a battery temperature of the battery assembly; and the path selection module is used for selecting at least one of the first flexible circuit board and the second flexible circuit board arranged in the battery assembly as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature.
In an embodiment of the present disclosure, when the charging current is greater than the preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to simultaneously serve as current conduction paths to charge the battery body; when the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board as a current conduction path to charge the battery body.
In an embodiment of the present disclosure, when the charging current is greater than the preset current, the first flexible circuit board and the second flexible circuit board share the charging current on average to perform charging.
In one embodiment of the present disclosure, the battery temperature is detected by a temperature sensor; when the detected battery temperature is greater than or equal to a preset temperature, the path selection module selects the first flexible circuit board as a current conduction path to discharge the battery body; and when the detected battery temperature is lower than the preset temperature, the path selection module selects the second flexible circuit board as a current conduction path to discharge the battery body. The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through setting up first flexible circuit board and second flexible circuit board and route selection module, and according to at least one in charging current and battery temperature through the route selection module, select at least one circuit board in first flexible circuit board and the second flexible circuit board as the electric current conduction path and carry out the charge-discharge to the battery body, the temperature rise of charging when can reduce heavy current charging, can shorten the charge time, the battery discharge capacity when can improve low temperature discharge, user experience has been promoted, the problem of charge speed reduction that leads to through only a flexible circuit board as the electric current conduction path among the correlation technique, the charge time extension, and the problem that the battery discharge capacity descends under the low temperature.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating a battery assembly according to an exemplary embodiment.
Fig. 2 is a diagram illustrating a mobile terminal according to an example embodiment.
Fig. 3 is a flow chart illustrating a method of charging a battery assembly according to an exemplary embodiment.
Fig. 4 is a flow chart illustrating a method of charging a battery assembly according to an exemplary embodiment.
Fig. 5 is a flow chart illustrating a method of charging a battery assembly according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating a charge and discharge device of a battery pack according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Mobile terminals such as mobile phones and tablet computers generally include a terminal main board and a battery, and the battery is usually a built-in battery. The built-in battery generally includes a battery body and a battery protection plate. The battery body is provided with a positive electrode output end and a negative electrode output end, and the battery protection plate is electrically connected with the two electrode output ends of the battery body. The battery protection board is electrically connected with a Flexible Printed Circuit (FPC) which is used as a current conduction path and connected to the terminal mainboard through the electric connector, so that the battery body is electrically connected with the charge-discharge module on the terminal mainboard, the battery is charged and discharged, and electric quantity is provided for the mobile terminal.
In the correlation technique, the battery body is connected to the terminal mainboard only through a flexible circuit board as the current conduction path, and in the heavy current charging process, flexible circuit board heating power is big, has increased the calorific capacity of whole battery, leads to charging temperature rise to rise, and then leads to battery charging current to reduce, and the charging speed reduces, and the charge time extension influences user experience.
In addition, when the battery is charged at a low temperature, the internal impedance of the battery increases due to the chemical characteristics of the battery, and when the battery is discharged to the same voltage, the discharge capacity decreases, and the user-usable capacity decreases, resulting in poor user experience.
In order to solve the problems of a battery body in the related art that a charging speed is reduced and a charging time is prolonged due to the fact that only one flexible circuit board is used as a current conducting path, and the problem that the discharge capacity of the battery is reduced at low temperature, the disclosed embodiment provides a battery assembly.
Fig. 1 is a schematic diagram illustrating a battery assembly according to an exemplary embodiment.
As shown in fig. 1, a battery assembly 100 provided by the embodiment of the present disclosure includes a battery body 10, a battery protection plate 20, a first flexible circuit board 30, a second flexible circuit board 40, and a routing module (not shown).
The battery body 10 is an energy storage unit in the battery assembly 100, such as a conventional lithium ion battery, and is manufactured by processes of lamination, winding, sealing, welding, formation, and the like. The battery body 10 is a flat battery to be suitable for a mobile terminal such as a mobile phone and a computer which is thin and light. However, the present disclosure is not limited thereto, and the battery body 10 may also have other shapes, such as a rectangular parallelepiped with a large thickness, according to the application thereof. One end of the battery body 10 is electrically connected to output terminals (not shown) of the positive and negative electrodes.
The battery protection board 20 is an Integrated Circuit board including a control Integrated Circuit (IC), a Metal Oxide Semiconductor Field Effect Transistor (MOS Transistor), a precision resistor, and the like, and is used to provide overcharge protection, overdischarge protection, overcurrent protection, and short Circuit protection for the battery assembly 100.
As shown in fig. 1, a battery protection plate 20 is provided at one end of the battery body 10 and is electrically connected to output terminals of the electrodes of the battery body 10. The battery protection plate 20 is long and fixed to one end of the battery body 10, from which the output terminals of the electrodes are drawn, by bonding, welding, or the like along the width direction of the battery body 10 so as to be electrically connected to the output terminals of the electrodes.
As shown in fig. 1, in one embodiment, in order to facilitate fixing of the battery protection plate 20, one end of the battery body 10 is provided with a step portion 11, and the battery protection plate 20 is fixed on the step portion 11. For example, one long side of the battery protection plate 20, which may be long, is fixed to the step portion 11. The sum of the thicknesses of the battery protection plate 20 and the step part 11 is less than or equal to the thickness of the battery body 10, so that the occupied space of the battery assembly 100 in electronic equipment such as a mobile terminal is reduced.
The flexible circuit board is a printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent flexibility. The flexible cable can be freely bent, wound and folded, can be randomly arranged according to the space layout requirement, can be randomly moved and stretched in a three-dimensional space, and can bear millions of dynamic bending without damaging a lead. The integration of component assembly and wire connection can be realized, the volume and the weight of electronic products can be greatly reduced, and the method is suitable for the requirements of the electronic products on the development towards high density, miniaturization and high reliability.
In the embodiment of the present disclosure, the first flexible circuit board 30 and the second flexible circuit board 40 are electrically connected to the battery protection plate 20 in parallel, thereby achieving electrical connection to the battery body 10 in parallel. When the battery body 10 is charged and discharged, the first flexible circuit board 30 and the second flexible circuit board 40 provide current conduction paths for charging and discharging currents.
In the embodiment of the present disclosure, the first flexible circuit board 30 and the second flexible circuit board 40 are used as current conductors, and the actual impedance is small, and is in the order of m Ω. The impedance of the first flexible circuit board 30 and the second flexible circuit board 40 are similar.
As shown in fig. 1, in one embodiment, the first flexible circuit board 30 is attached to one end of the battery protection plate 20 along the length direction of the battery protection plate 20. The second flexible circuit board 40 is attached to one surface of the battery body 10.
The first flexible circuit board 30 may be led out from the side of the battery protection plate 20. One end of the first flexible circuit board 30 is soldered to a pad on the opposite side of the battery protection plate 20 and electrically connected to the battery protection plate 20. The battery protection plate 20 is folded over to the front surface of the battery protection plate 20 through the side surface thereof, and then is attached to one end of the battery protection plate 20 along the longitudinal direction of the battery protection plate 20. The first flexible circuit board 30 is provided with a first electrical connector 31 at an end thereof not connected to the battery protection board 20 so as to be electrically connected to an electrical connector on a mobile terminal motherboard or the like in a pluggable manner. The term "front" and "back" are relative terms and do not mean absolute front and back.
In one embodiment, the first flexible circuit board 30 is attached to one end of the battery protection board 20 by a double-sided tape. However, the present disclosure is not limited thereto, and the two may be attached and fixed by means of glue dispensing, fastening, and the like.
In one embodiment, the width of the first flexible circuit board 30 is equal to or less than the width of the battery protection plate 20, and the length is not more than 25% of the length of the battery protection plate 20, so that the area of the first flexible circuit board 30 is equal to or less than 25% of the area of the battery protection plate. The first flexible circuit board 30 is prevented from having an excessively large area and affecting the arrangement of the electronic components on the battery protection board 20.
One end of the second flexible circuit board 40 is also soldered to a solder pad on the opposite side of the battery protection plate 20, and the first flexible circuit board 30 is electrically connected to the battery protection plate 20 in parallel with each other. The second flexible circuit board 40 is attached to one surface of the battery body 10. The end of the second flexible circuit board 40 not connected to the battery protection board 20 is provided with a second electrical connector 41 so as to be electrically connected with an electrical connector on a mobile terminal motherboard or the like in a pluggable manner.
In one embodiment, the second flexible circuit board 40 is attached to the surface of the battery body 10 by a double-sided adhesive tape. However, the present disclosure is not limited thereto, and the two may be attached and fixed by means of dispensing, snapping, hot pressing, and the like.
In one embodiment, the second flexible circuit board 40 has a width not greater than the width of the battery body 10 and a length not greater than the length of the battery body 10. The area of the second flexible circuit board 40 may be 50% to 90% of the area of the surface of the battery body 10 to which it is attached.
In one embodiment, as shown in fig. 1, a groove 12 is formed on the surface of the battery body 10 to which the second flexible circuit board 40 is fixed, and the second flexible circuit board 40 is fitted in the groove 12. The shape of the recess 12 may be determined according to the second flexible circuit board 40. The depth of the groove 12 may be greater than or equal to the thickness of the second flexible circuit board 40. The area of the groove 12 is greater than or equal to the area of the second flexible circuit board 40. The second flexible circuit board 40 is fitted in the groove 12, so that the second flexible circuit board 40 can be protected on one hand, and the battery assembly 100 is prevented from being too thick on the other hand.
In the charging and discharging processes, the path selection module (not shown) selects at least one of the first flexible circuit board 30 and the second flexible circuit board 40 as a current conduction path to charge and discharge the battery body 10 according to at least one of the charging current and the battery temperature.
The path selection module may be implemented in various circuits, and may include an MCU, an a/D conversion circuit, an amplification circuit, a comparator, and the like. In an embodiment, the routing module is integrated on the battery protection plate 20.
In an embodiment, the path selection module is configured to: when the charging current is greater than the preset current, the path selection module selects the first flexible circuit board 30 and the second flexible circuit board 40 to simultaneously serve as current conduction paths to charge the battery body 10. When the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board 30 as a current conducting path to charge the battery body 10.
The preset current may be preset according to the model of the battery body 10 when the battery is shipped from a factory, or may be set by user on the basis of considering factors such as the model, capacity loss, and usage duration of the battery body 10, but the disclosure is not limited thereto. In one embodiment, the predetermined current may be 5A to 10A, preferably 6A. The magnitude of the charging current can be measured by a current sensor on the battery protection board 20.
Generally, the charging process of a battery may include several modes: 1. a low-voltage pre-charging mode, which aims at gradual activated charging when the voltage of the battery is too low so as to prevent the battery from being damaged by excessive charging current; 2. a constant current charging mode or a full-speed charging mode, in which a battery with a normal voltage (generally, a battery voltage higher than 3.0V and lower than 4.2V) is continuously charged with a maximum allowable charging current; 3. constant voltage charging mode: in the later stage of charging, the charging voltage is controlled to be constant at a level slightly higher than the saturation voltage (generally 4.20V) of the battery, the charging current is gradually reduced, stable charging is carried out, and the charging process is slower as the charging process is closer to the terminal point; 4. a trickle charge mode for controlling the charge voltage to be constant when the battery voltage reaches or approaches a saturation voltage, so as to compensate for capacity loss caused by self-discharge after the battery is fully charged; 5. the pulse charging mode, also called a constant voltage control charging mode, may periodically jump to a full-speed charging mode when in the trickle charging mode, and a pulse current is formed to charge the battery, so as to enter the pulse constant voltage control charging mode.
The following describes the path selection process in the charging process of the battery body 10 in detail with reference to the above-mentioned five charging modes.
When the voltage of the battery body 10 is excessively low, the low voltage pre-charge mode is first entered. In this charging mode, the charging current is very small, and the path selection module determines that the charging current is smaller than the preset current, so as to select the first flexible circuit board 30 as a current conduction path to charge the battery body 10. At this time, the charging current flowing through the first flexible circuit board 30 is small, and therefore, the heat generation amount of the first flexible circuit board 30 is low. Also, the first flexible circuit board 30 does not directly contact the battery body 10, which does not cause a temperature rise in charging.
When the voltage of the battery body 10 is normal, the constant current charging mode is entered. In this charging mode, the battery body 10 is continuously charged at the maximum allowable charging current (e.g., 10A). At this time, the path selection module determines that the charging current is greater than the preset current, and the path selection module selects the first flexible circuit board 30 and the second flexible circuit board 40 to be used as current conducting paths to charge the battery body 10, so as to shunt the charging current. That is, the charging current flows through the first flexible circuit board 30 and the second flexible circuit board 40 at the same time.
At this time, the heating power P of the first flexible circuit board 301＝I1 2*R1Wherein P is1Is the heating power of the first flexible circuit board 30, I1For the charging current, R, flowing through the first flexible circuit board 301Is the impedance of the first flexible circuit board 30.
Heating power P of the second flexible circuit board 402＝I2 2*R2Wherein P is2Is the heating power of the second flexible circuit board 40, I2For the charging current, R, flowing through the second flexible circuit board 402Is the impedance of the second flexible circuit board 40.
In an embodiment, when the charging current is greater than the preset current, the path selection module selects the first flexible circuit board 30 and the second flexible circuit board 40 to simultaneously serve as a current conducting path to charge the battery body 10, including: the first flexible circuit board 30 and the second flexible circuit board 40 share the charging current on average for charging. That is, the currents flowing through the first flexible circuit board 30 and the second flexible circuit board 40 are each half of the charging current.
Further, the heat generation power of the first flexible circuit board 30
Heating power of the second flexible circuit board 40
Wherein I is a charging current I flowing through the first flexible circuit board 301And a charging current I flowing through the second flexible circuit board 402The sum of (a) and (b).
Accordingly, the total heat generation power of the first and second flexible circuit boards 30 and 40
When the battery assembly 100 includes only one flexible circuit board, for example, only the first flexible circuit board 30, the first flexible circuit board 30 is the only current conducting path, and the heat generating power P of the first flexible circuit board 301＝I2*R1。
The total heat generation power P of the first flexible circuit board 30 and the second flexible circuit board 40 which are used as current conduction paths at the same time is compared with the total heat generation power P which is used as a sole heat generation powerHeat generation power P of first flexible circuit board 30 having one current conduction path1By comparison, due to the impedance R of the first flexible circuit board 301And the impedance R of the second flexible circuit board 402Similarly, it can be seen that the total heat generation power P of the first flexible circuit board 30 and the second flexible circuit board 40 which are both current conduction paths is about the heat generation power P of the first flexible circuit board 30 which is the only current conduction path1Half of that.
Therefore, when the first flexible circuit board 30 and the second flexible circuit board 40 are simultaneously used as current conducting paths to shunt the charging current, the total heating power is approximately reduced by half, the heating value is greatly reduced, and the charging temperature rise is reduced. The battery charging method and the battery charging device have the advantages that the battery charging device can not enter the constant-voltage charging mode from the constant-current charging mode due to overhigh temperature of the battery body 10, so that the large-current charging time of the constant-current charging mode is prolonged, the small-current charging time of the constant-voltage charging mode is shortened, the whole charging time of the battery is greatly shortened, and the charging experience of a user is improved.
In the later stage of charging, in order to prevent overcharging, enter the constant voltage charging mode, reduce charging current gradually, charge steadily. In the charging mode, when the charging current decreases below the preset current, the path selection module determines that the charging current is smaller than the preset current, so that the first flexible circuit board 30 and the second flexible circuit board 40 are simultaneously used as current conduction paths to be switched to the first flexible circuit board 30 used as the current conduction path to charge the battery body 10. At this time, the charging current flowing through the first flexible circuit board 30 is gradually reduced, and therefore, the heat generation amount of the first flexible circuit board 30 is low, and the charging temperature rise is not caused.
The trickle charge mode is entered when the battery voltage reaches or approaches the saturation voltage. In this charging mode, the charging current is very small, and the path selection module determines that the charging current is smaller than the preset current, and still charges the battery body 10 by using the first flexible circuit board 30 as the current conduction path. Since the charging current is smaller, the heat generation amount of the first flexible circuit board 30 is lower, and the charging temperature rise is not caused.
In the trickle charge mode, the constant current charge mode may be periodically skipped to enter the pulse charge mode. In the charging mode, the path selection module periodically selects a current conduction path according to a comparison result of the charging current and a preset current. I.e., the current conduction path jumps between the first flexible circuit board 30 and the first and second flexible circuit boards 30 and 40 connected in parallel with each other.
In this embodiment, the first flexible circuit board 30 and the second flexible circuit board 40 are provided with dual flexible circuit boards and a path selection module, and the path selection module selects the first flexible circuit board 30 and/or the second flexible circuit board 40 as a current conduction path to charge the battery body 10 according to a comparison result between the charging current and a preset current.
When the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board 30 as a current conduction path. At this time, since the charging current is relatively small, the heat generation amount of the first flexible circuit board 30 is low, and the first flexible circuit board 30 does not directly contact the battery body 10, which does not cause a temperature increase in charging.
When the charging current is greater than the preset current, the path selection module selects the first flexible circuit board 30 and the second flexible circuit board 40 to be simultaneously used as current conduction paths. At this moment, the charging current is shunted through the first flexible circuit board 30 and the second flexible circuit board 40, the total heating power is approximately reduced by half, the heating amount is greatly reduced, the charging temperature rise is reduced, the large-current charging time is prolonged, the small-current charging time is shortened, the whole charging time of the battery is greatly shortened, and the charging experience of a user is improved.
At low temperatures, the chemical activity of the battery internal materials decreases, resulting in an increase in the battery internal impedance and an increase in the battery discharge voltage. At the same discharge current, the internal impedance of the battery increases, so that the battery reaches the discharge cut-off voltage in advance, and the discharge capacity of the battery is reduced. Therefore, when discharging at low temperature, the battery temperature is improved, which helps to reduce the decrease of battery capacity
In one embodiment, the battery assembly 100 further includes a temperature sensor 50, and the temperature sensor 50 detects the battery temperature and transmits the battery temperature to the routing module. The temperature sensor 50 is disposed on the battery body 10 to sense the temperature of the battery assembly 100. In one embodiment, the battery body 10 is provided with the step portion 11 at one end, and the temperature sensor 50 is disposed on the step portion 11, so that the overall occupied space of the battery assembly 100 can be reduced.
The path selection module is further configured to: when the temperature detected by the temperature sensor 50 is greater than or equal to a preset temperature, the path selection module selects the first flexible circuit board 30 as a current conduction path to discharge the battery body; when the temperature detected by the temperature sensor 50 is less than the preset temperature, the path selection module selects the second flexible circuit board 40 as a current conduction path to discharge the battery body.
The preset temperature may be preset according to the model of the battery body 10 when the battery is shipped from a factory, or may be set by user on the basis of considering factors such as the model, capacity loss, and usage duration of the battery body 10, but the disclosure is not limited thereto. In one embodiment, the predetermined temperature may be in the range of-10 ℃ to 20 ℃, preferably 10 ℃.
When the temperature sensed by the temperature sensor 50 is greater than or equal to the preset temperature, the path selection module determines that the battery temperature is greater than or equal to the preset temperature according to the received temperature signal, and selects the first flexible circuit board 30 as a current conduction path to discharge the battery body 10. At this moment, the discharge current flows through the first flexible circuit board 30, and the discharge current generally does not exceed 2A, so that the heat productivity of the first flexible circuit board 30 is low, the first flexible circuit board 30 is not in direct contact with the battery body 10, the discharge temperature rise is not increased, the discharge capacity of the battery is ensured, and the user experience is improved.
When the temperature sensed by the temperature sensor 50 is lower than the preset temperature, the path selection module determines that the battery temperature is lower than the preset temperature according to the received temperature signal, and selects the second flexible circuit board 40 as a current conduction path to discharge the battery body. At this moment, the discharging current flows through the second flexible circuit board 40, and because the second flexible circuit board 40 is attached to the surface of the battery body 10, the heat productivity of the second flexible circuit board 40 is conducted to the battery body 10, so that the battery body 10 is heated, the temperature of the battery body 10 is increased, the internal impedance is reduced, the discharging capacity of the battery is improved, and the user experience is improved.
In the present embodiment, the path selection module selects the first flexible circuit board 30 or the second flexible circuit board 40 as a current conduction path to charge the battery body 10 according to the comparison result between the battery temperature and the preset temperature. When the battery temperature is greater than or equal to the preset temperature, the discharging current is controlled to flow through the first flexible circuit board 30 completely, the discharging temperature rise cannot be increased, and the battery discharging capacity is guaranteed. When the battery temperature is less than the preset temperature, the discharging current is controlled to flow through the second flexible circuit board 40, the heating effect is generated on the battery body 10, the battery temperature is increased, the battery discharging capacity is improved, and the user experience is improved.
In the embodiment of the present disclosure, the first flexible circuit board 30, the second flexible circuit board 40, and the path selection module are provided, and the path selection module selects the first flexible circuit board 30 and/or the second flexible circuit board 40 as a current conduction path to charge and discharge the battery body 10 according to the charging current and the battery temperature. The charging temperature rise during large-current charging is reduced, the charging time is shortened, the battery discharge capacity during low-temperature discharging is improved, the user experience is improved, and the problems that the charging speed is reduced and the charging time is prolonged due to the fact that only one flexible circuit board is used as a current conduction path in the related technology and the battery discharge capacity is reduced at low temperature are solved.
Fig. 2 is a diagram illustrating a mobile terminal according to an example embodiment.
As shown in fig. 2, according to a second aspect of the embodiment of the present disclosure, a mobile terminal 200 is provided, which includes the battery pack 100 as above and a terminal main board (not shown). The battery assembly 100 is electrically connected to the charge and discharge module of the terminal main board. For example, the first electrical connector 31 at one end of the first flexible circuit board 30 and the second electrical connector 41 at one end of the second flexible circuit board 40 are respectively electrically connected to the electrical connectors on the terminal motherboard in a pluggable manner.
The mobile terminal can be an electronic device such as a mobile phone, a tablet computer, an electronic reader and an intelligent wearable device.
According to a third aspect of an embodiment of the present disclosure, a method of charging and discharging a battery assembly includes:
in step S11, at least one of the charging current and the battery temperature of the battery assembly 100 is acquired.
In the embodiment of the present disclosure, the charging current may be obtained by a current sensor in the battery protection board 20. The battery temperature may be acquired by a temperature sensor 50 provided on the battery body 10.
In step S12, at least one of the first flexible circuit board 30 and the second flexible circuit board 40 provided in the battery assembly 100 is selected as a current conduction path to charge and discharge the battery body 10 according to at least one of the charging current and the battery temperature.
In the embodiment of the present disclosure, during charging, at least one of the first flexible circuit board 30 and the second flexible circuit board 40 is selected as a current conducting path to charge and discharge the battery body 10 according to the magnitude of the charging current. At the time of discharging, at least one of the first flexible circuit board 30 and the second flexible circuit board 40 is selected as a current conduction path according to the magnitude of the battery temperature to discharge the battery body 10.
In one embodiment, the selecting at least one of the first flexible circuit board 30 and the second flexible circuit board 40 provided in the battery assembly 100 as a current conduction path to charge and discharge the battery body 10 according to at least one of the charging current and the battery temperature in step S12 includes: when the charging current is greater than the preset current, selecting the first flexible circuit board 30 and the second flexible circuit board 40 as current conducting paths to charge the battery body 10; when the charging current is less than or equal to the preset current, the first flexible circuit board 30 is selected as a current conducting path to charge the battery body 10.
Thus, the method for charging and discharging the battery module includes the following steps.
In step S21, the charging current of the battery assembly 100 is acquired.
In step S22, it is determined whether the charging current is greater than a preset current. When the charging current is greater than the preset current, step S23 is performed. When the charging current is less than or equal to the preset current, step S24 is performed.
In step S23, the first flexible circuit board 30 and the second flexible circuit board 40 are selected to simultaneously serve as current conduction paths to charge the battery body 10.
In step S24, the first flexible circuit board 30 is selected as a current conduction path to charge the battery body 10.
In the embodiment of the present disclosure, when the first flexible circuit board 30 and the second flexible circuit board 40 are selected to be used as the current conduction path to charge the battery body 10 at the same time, a part of the charging current flows through the first flexible circuit board 30, and another part of the charging current flows through the second flexible circuit board 40. The sum of the heating power of the first flexible circuit board 30 and the second flexible circuit board 40 is smaller than the heating power of the flexible circuit board when the charging current only flows through one of the first flexible circuit board 30 or the second flexible circuit board 40, so that the charging temperature rise can be reduced, the large-current charging time can be prolonged, the small-current charging time can be shortened, the whole charging time of the battery can be shortened, and the charging experience of a user can be improved.
In an embodiment, when the charging current is greater than the preset current, the first flexible circuit board 30 and the second flexible circuit board 40 are selected to be simultaneously used as a current conduction path to charge the battery body 10, including: the first flexible circuit board 30 and the second flexible circuit board 40 share the charging current on average for charging.
In the embodiment of the present disclosure, the first flexible circuit board 30 and the second flexible circuit board 40 share the charging current on average for charging, that is, the current flowing through the first flexible circuit board 30 and the second flexible circuit board 40 respectively accounts for one half of the charging current. At this time, the sum of the heating powers of the first flexible circuit board 30 and the second flexible circuit board 40 is about one-half of the heating power of the flexible circuit board when the charging current flows only through one of the first flexible circuit board 30 or the second flexible circuit board 40, and the heating value is greatly reduced.
In one embodiment, the battery temperature is detected by the temperature sensor 50; when the detected battery temperature is greater than or equal to a preset temperature, the first flexible circuit board 30 is selected as a current conduction path to discharge the battery body 10; when the detected battery temperature is less than the preset temperature, the second flexible circuit board 40 is selected as a current conduction path to discharge the battery body 10.
Thus, the method for charging and discharging the battery module includes the following steps.
In step S31, the battery temperature is detected by the temperature sensor 50.
In step S32, it is determined whether the battery temperature is greater than a preset temperature. When the battery temperature is greater than or equal to the preset temperature, step S33 is performed. When the battery temperature is less than the preset temperature, step S34 is performed.
In step S33, the first flexible circuit board 30 is selected as a current conduction path to discharge the battery body 10.
In step S34, the second flexible circuit board 40 is selected as a current conduction path to discharge the battery body 10.
In the embodiment of the present disclosure, when the battery temperature is lower than the preset temperature, the discharging current is controlled to flow through the second flexible circuit board 40, so as to generate a heating effect on the battery body 10, such that the temperature of the battery body 10 is raised, the internal impedance is reduced, the battery discharging capacity is improved, and the user experience is improved.
According to the charge and discharge method of the battery pack according to the present disclosure, not limited to the above-described method, at least one of the first flexible circuit board 30 and the second flexible circuit board 40 may be selected as a current conduction path to charge and discharge the battery body 10 according to only the charge current. The first flexible circuit board 30 or the second flexible circuit board 40 may be selected as a current conduction path to charge and discharge the battery body 10 according to only the battery temperature. At least one of the first flexible circuit board 30 and the second flexible circuit board 40 may be selected as a current conduction path to charge and discharge the battery body 10 according to the charging current and the battery temperature.
Based on the same conception, the embodiment of the disclosure also provides a charging and discharging device of the battery pack.
It is understood that, in order to implement the above functions, the charging and discharging device for a battery assembly provided in the embodiments of the present disclosure includes a hardware structure and/or a software module corresponding to each function. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in combination with the exemplary elements and algorithm steps disclosed in the disclosed embodiments. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
Fig. 6 is a block diagram illustrating a charging and discharging apparatus of a battery pack according to an exemplary embodiment. Referring to fig. 6, the charging and discharging apparatus 300 of the battery pack includes an acquisition module 301 and a path selection module 302.
The acquisition module 301 is configured to: at least one of a charging current and a battery temperature of the battery assembly 100 is acquired.
The path selection module 302 is configured to: at least one of the first flexible circuit board 30 and the second flexible circuit board 40 provided in the battery assembly 100 is selected as a current conduction path to charge and discharge the battery body 10 according to at least one of the charging current and the battery temperature.
In an embodiment, when the charging current is greater than the preset current, the path selection module 302 selects the first flexible circuit board 30 and the second flexible circuit board 40 to be used as current conducting paths to charge the battery body 10 at the same time; when the charging current is less than or equal to the preset current, the path selection module 302 selects the first flexible circuit board 30 as a current conducting path to charge the battery body 10.
In an embodiment, when the charging current is greater than the preset current, the first flexible circuit board 30 and the second flexible circuit board 40 share the charging current on average for charging.
In one embodiment, the battery temperature is detected by the temperature sensor 50; when the detected battery temperature is greater than or equal to the preset temperature, the path selection module 302 selects the first flexible circuit board 30 as a current conduction path to discharge the battery body 10; when the detected battery temperature is less than the preset temperature, the path selection module 302 selects the second flexible circuit board 40 as a current conduction path to discharge the battery body 10.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here. It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.
It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.
It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (20)
1. A battery assembly, comprising:
a battery body;
the battery protection plate is arranged at one end of the battery body and is electrically connected with the output end of the electrode of the battery body;
a first flexible circuit board and a second flexible circuit board electrically connected to the battery protection board in parallel; and
and the path selection module selects at least one of the first flexible circuit board and the second flexible circuit board as a current conduction path to charge and discharge the battery body according to at least one of charging current and battery temperature.
2. The battery assembly of claim 1,
the first flexible circuit board is attached to one end of the battery protection board along the length direction of the battery protection board;
the second flexible circuit board is attached to one surface of the battery body.
3. The battery assembly of claim 2, wherein the routing module is configured to:
when the charging current is larger than a preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to be used as current conduction paths to charge the battery body at the same time;
when the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board as a current conduction path to charge the battery body.
4. The battery assembly of claim 3,
when the charging current is greater than a preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to be used as current conduction paths to charge the battery body at the same time, and the path selection module includes:
the first flexible circuit board and the second flexible circuit board share charging current on average to charge.
5. The battery assembly of claim 3,
the battery pack further includes a temperature sensor that detects the battery temperature and sends the battery temperature to the routing module.
6. The battery assembly of claim 5,
the path selection module is further configured to:
when the temperature detected by the temperature sensor is greater than or equal to a preset temperature, the path selection module selects the first flexible circuit board as a current conduction path to discharge the battery body;
and when the temperature detected by the temperature sensor is lower than the preset temperature, the path selection module selects the second flexible circuit board as a current conduction path to discharge the battery body.
7. The battery assembly of claim 2,
the area of the first flexible circuit board is less than or equal to 25% of the area of the battery protection board;
the area of the second flexible circuit board accounts for 50% to 90% of the area of the surface of the battery body.
8. The battery assembly of claim 2,
the surface of the battery body is provided with a groove, and the second flexible circuit board is attached to the groove.
9. The battery assembly of claim 1,
one end of the battery body is provided with a step part, and the battery protection board is fixed on the step part.
10. The battery assembly of claim 5,
the one end of battery body is provided with step portion, temperature sensor sets up on the step portion.
11. The battery assembly of claim 1,
the path selection module is integrated on the battery protection plate.
12. A mobile terminal, characterized in that the mobile terminal comprises:
a battery assembly according to any one of claims 1 to 11; and
and the battery assembly is electrically connected to the charge-discharge module of the terminal mainboard.
13. A method of charging and discharging a battery assembly, comprising:
acquiring at least one of a charging current and a battery temperature of the battery assembly;
and selecting at least one of a first flexible circuit board and a second flexible circuit board arranged in the battery assembly as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature.
14. The method of charging and discharging a battery pack according to claim 13,
selecting at least one of a first flexible circuit board and a second flexible circuit board provided in the battery assembly as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature, including:
when the charging current is larger than a preset current, selecting the first flexible circuit board and the second flexible circuit board as current conducting paths to charge the battery body;
and when the charging current is less than or equal to the preset current, selecting the first flexible circuit board as a current conduction path to charge the battery body.
15. The method of charging and discharging a battery pack according to claim 14,
when the charging current is greater than the preset current, selecting the first flexible circuit board and the second flexible circuit board to be used as current conduction paths to charge the battery body at the same time, and the method comprises the following steps:
the first flexible circuit board and the second flexible circuit board share charging current on average to charge.
16. The method of charging and discharging a battery pack according to claim 14, further comprising:
detecting the battery temperature by a temperature sensor;
when the detected battery temperature is greater than or equal to a preset temperature, selecting the first flexible circuit board as a current conduction path to discharge the battery body;
and when the detected battery temperature is lower than the preset temperature, selecting the second flexible circuit board as a current conduction path to discharge the battery body.
17. A charge and discharge device for a battery pack, comprising:
the battery pack charging device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring at least one of charging current and battery temperature of a battery pack;
and the path selection module is used for selecting at least one of a first flexible circuit board and a second flexible circuit board arranged in the battery assembly as a current conduction path to charge and discharge the battery body according to at least one of the charging current and the battery temperature.
18. The charge and discharge device for a battery pack according to claim 17,
when the charging current is larger than a preset current, the path selection module selects the first flexible circuit board and the second flexible circuit board to be used as current conduction paths to charge the battery body at the same time;
when the charging current is less than or equal to the preset current, the path selection module selects the first flexible circuit board as a current conduction path to charge the battery body.
19. The charge and discharge device for a battery pack according to claim 18,
and when the charging current is greater than the preset current, the first flexible circuit board and the second flexible circuit board share the charging current on average to charge.
20. The charge and discharge device for a battery pack according to claim 17,
detecting the battery temperature by a temperature sensor;
when the detected battery temperature is greater than or equal to a preset temperature, the path selection module selects the first flexible circuit board as a current conduction path to discharge the battery body;
when the detected battery temperature is lower than the preset temperature, the path selection module selects the second flexible circuit board as a current conduction path to discharge the battery body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802902.2A CN114079299A (en) | 2020-08-11 | 2020-08-11 | Battery assembly, charging and discharging method and device thereof, and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802902.2A CN114079299A (en) | 2020-08-11 | 2020-08-11 | Battery assembly, charging and discharging method and device thereof, and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114079299A true CN114079299A (en) | 2022-02-22 |
Family
ID=80280217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010802902.2A Pending CN114079299A (en) | 2020-08-11 | 2020-08-11 | Battery assembly, charging and discharging method and device thereof, and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114079299A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025861A (en) * | 1974-08-23 | 1977-05-24 | Saft-Societe Des Accumulateurs Fixes Et De Traction | Method and device for charging and heating at low temperature a sealed storage cell battery |
| JP2005332777A (en) * | 2004-05-21 | 2005-12-02 | Fuji Heavy Ind Ltd | Warm-up control unit of battery |
| CN201690242U (en) * | 2009-12-03 | 2010-12-29 | 国基电子（上海）有限公司 | Double-mode charging circuit |
| CN201887500U (en) * | 2010-11-12 | 2011-06-29 | 立锜科技股份有限公司 | Charging circuit |
| JP2012217276A (en) * | 2011-03-31 | 2012-11-08 | Sanyo Electric Co Ltd | Power supply and vehicle having the same |
| CN110474391A (en) * | 2019-08-09 | 2019-11-19 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN111211284A (en) * | 2018-11-22 | 2020-05-29 | 中信国安盟固利动力科技有限公司 | Battery thermal management structure and battery module comprising same |
| CN210984782U (en) * | 2019-10-09 | 2020-07-10 | Oppo广东移动通信有限公司 | Electronic device |
| CN111403675A (en) * | 2020-04-20 | 2020-07-10 | 东莞新能德科技有限公司 | Battery and electronic device |
-
2020
- 2020-08-11 CN CN202010802902.2A patent/CN114079299A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025861A (en) * | 1974-08-23 | 1977-05-24 | Saft-Societe Des Accumulateurs Fixes Et De Traction | Method and device for charging and heating at low temperature a sealed storage cell battery |
| JP2005332777A (en) * | 2004-05-21 | 2005-12-02 | Fuji Heavy Ind Ltd | Warm-up control unit of battery |
| CN201690242U (en) * | 2009-12-03 | 2010-12-29 | 国基电子（上海）有限公司 | Double-mode charging circuit |
| CN201887500U (en) * | 2010-11-12 | 2011-06-29 | 立锜科技股份有限公司 | Charging circuit |
| JP2012217276A (en) * | 2011-03-31 | 2012-11-08 | Sanyo Electric Co Ltd | Power supply and vehicle having the same |
| CN111211284A (en) * | 2018-11-22 | 2020-05-29 | 中信国安盟固利动力科技有限公司 | Battery thermal management structure and battery module comprising same |
| CN110474391A (en) * | 2019-08-09 | 2019-11-19 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN210984782U (en) * | 2019-10-09 | 2020-07-10 | Oppo广东移动通信有限公司 | Electronic device |
| CN111403675A (en) * | 2020-04-20 | 2020-07-10 | 东莞新能德科技有限公司 | Battery and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3051622B1 (en) | Universal rechargeable battery constituted by employing lithium-ion battery and control method | |
| US20090075704A1 (en) | Mobile communication device with charging module | |
| US8378632B2 (en) | Circuit arrangement with multiple batteries | |
| EP2992583B1 (en) | Battery charger integrated circuit chip | |
| EP1156572A1 (en) | Portable multiple power supply comprising solar cell | |
| US20040135553A1 (en) | Battery chargers | |
| CN111740460B (en) | Earphone charging control circuit and charging box | |
| GB2281810A (en) | Battery equipped with thermistor and associated charging apparatus with switch to control charging according to temperature | |
| CN106207296A (en) | Charging method | |
| CN1578052B (en) | Ac adapter and charging method thereof | |
| US8277246B2 (en) | Battery terminal adapter | |
| EP3836340A1 (en) | Charging circuit and electronic device | |
| CN111682607B (en) | Charging structure and electronic equipment | |
| CN114079299A (en) | Battery assembly, charging and discharging method and device thereof, and mobile terminal | |
| CN108683236A (en) | A kind of mobile terminal OTG charging methods and device | |
| US8999537B2 (en) | Battery pack | |
| CN216959382U (en) | Power receiving circuit, earphone and earphone assembly | |
| US5218287A (en) | Lead battery assembly adapted to be charged by a charger for a nickel-cadmium battery | |
| CN215990232U (en) | Battery charging device and system | |
| CN215871789U (en) | Earphone compatible circuit, earphone charging device and earphone equipment | |
| JP2024519556A (en) | Charging circuit, charging method, electronic device, and storage medium | |
| EP4335013A1 (en) | Charging device for wearable device and wearable device assembly | |
| CN218920024U (en) | Charging control circuit, charging module and electronic equipment | |
| CN106026295A (en) | Terminal charging base | |
| CN213461181U (en) | Lithium battery charging circuit and lithium battery charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |