CN217562780U - Top cap subassembly, battery monomer, battery and consumer - Google Patents
Top cap subassembly, battery monomer, battery and consumer Download PDFInfo
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- CN217562780U CN217562780U CN202221880394.0U CN202221880394U CN217562780U CN 217562780 U CN217562780 U CN 217562780U CN 202221880394 U CN202221880394 U CN 202221880394U CN 217562780 U CN217562780 U CN 217562780U
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The application relates to the technical field of batteries, and particularly discloses a top cover assembly, a single battery, a battery and electric equipment. The application provides a top cap subassembly includes the top cap piece, the electrode terminal, the adaptor piece, current collection dish and buffer, the electrode terminal is worn to locate the top cap piece, the adaptor piece links to each other with the electrode terminal, current collection dish links to each other with the adaptor piece, and form first kink in the junction of current collection dish and adaptor piece, the buffer links to each other with the adaptor piece and/or current collection dish links to each other, and be under the state of buckling when first kink, the buffer is located between adaptor piece and the current collection dish, and the both ends of buffer respectively with adaptor piece and current collection dish looks butt. Among the technical scheme of this application, can provide the cushion effect for the adaptor piece on the vibration direction to reduce the relative current collection dish's of adaptor piece vibration amplitude, and then reduce the extrusion force to first kink, prevent that first kink from taking place the fracture under the extrusion of vibrating for a long time, guarantee security and the reliability that the battery used.
Description
Technical Field
The application relates to the technical field of batteries, and particularly discloses a top cover assembly, a single battery, a battery and electric equipment.
Background
At present, with the increasingly prominent environmental problems, people actively advocate low-carbon economy. New energy vehicles are emerging with increasingly severe air quality. Manufacturers and consumers are gradually accepting hybrid electric vehicles and pure electric vehicles as representative new energy vehicles. The power battery is used as a main power source of the new energy automobile and becomes one of the core components of the electric automobile.
When a cylindrical lithium ion battery is assembled, a current collecting disc and an adapter plate are generally used to connect a battery tab with an electrode terminal. When the vibration frequency is more, the connection part between the current collecting disc and the adapter sheet is easy to generate fatigue fracture, so that the open circuit of the battery is caused, and the service life of the battery is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the application provides a top cover assembly, a battery monomer, a battery and electric equipment, which can effectively solve the problem that the connection between a current collecting disc and an adapter sheet is in fatigue fracture.
In a first aspect, the present application provides a header assembly comprising:
a top cover sheet;
the electrode terminal penetrates through the top cover plate;
the adapter plate is connected with the electrode terminal;
the flow collecting disc is connected with the adapter sheet, and a first bending part is formed at the connecting part of the flow collecting disc and the adapter sheet;
the buffer piece, the buffer piece with the switching piece link to each other and/or with the current collection dish links to each other, and works as under first kink is the state of buckling, the buffer piece is located the switching piece with between the current collection dish, just the both ends of buffer piece respectively with the switching piece with current collection dish looks butt.
Among the technical scheme of this application, through setting up the bolster, and be under the bending state when first kink, the bolster is located between adaptor piece and the current collection dish, and the both ends of bolster respectively with adaptor piece and current collection dish looks butt, when the top cap subassembly takes place the vibration, the bolster can provide the cushion effect for the adaptor piece in the motion process of current collection dish, thereby reduce the relative current collection dish's of adaptor piece vibration amplitude, and then reduce the extrusion force to first kink, prevent that first kink from taking place the fracture under the extrusion of long-term vibration, guarantee security and the reliability that the battery used, improve battery life.
In some embodiments of this application, the top cap subassembly still includes plastic down, the plastic is located down one side of top cap piece and with the non-electricity of top cap piece is connected, the inside of plastic is formed with first accepting the chamber down, works as under the first kink of kink is the bending state, the adaptor piece with the collector disc locates jointly first accepting the chamber. Locate first chamber of acceping jointly with adaptor piece and current collection dish, protect adaptor piece and current collection dish through lower plastic, prevent to cause the scratch to it, prevent that adaptor piece and current collection dish from receiving the damage. Meanwhile, the lower plastic is electrically connected with the top cover piece in a non-conductive mode, and the part, connected with the adapter plate, of the electrode terminal is arranged in the first accommodating cavity, so that the electrode terminal and the top cover piece can be effectively prevented from conducting, the top cover assembly is prevented from leaking electricity, and the use safety and reliability of the battery are further improved.
In some embodiments of the present application, a first inserting hole is formed in the lower plastic, and/or a flow guide hole is formed in the lower plastic, and the flow guide hole is opposite to the pressure relief mechanism on the top cover piece. One end of the electrode terminal is connected with the adapter plate and arranged in the first accommodating cavity of the lower plastic, and the other end of the electrode terminal penetrates through the first plug hole and further penetrates through the top cover plate, so that external power supply is performed. After top cap subassembly assembles to battery case, and when the atmospheric pressure in the battery case riseed, high-pressure gas can act on the pressure release mechanism on the top cap piece through the water conservancy diversion hole to make pressure release mechanism realize the pressure release, prevent because the too big explosion that leads to the battery of pressure in the battery case.
In some embodiments of the present application, the top cap assembly further comprises an upper plastic, the upper plastic is disposed on the other side of the top cap plate and is electrically non-conductive with the top cap plate, and the electrode terminal sequentially passes through the lower plastic, the top cap plate and the upper plastic. The electrode terminal sequentially penetrates through the lower plastic cement, the top cover piece and the upper plastic cement, so that the upper plastic cement and the lower plastic cement are arranged between the two ends of the electrode terminal and the top cover piece respectively, and therefore the electrode terminal is prevented from being conductively connected with the top cover piece through the upper plastic cement and the lower plastic cement, and the top cover assembly is prevented from being electrically leaked.
In some embodiments of the present application, the top cap assembly further includes a fixing member, the fixing member is disposed on one side of the upper plastic deviating from the top cap piece, and the electrode terminal passes through the upper plastic and is fixedly connected with the fixing member. Electrode terminals are fixed through the fixing piece, electrode terminals are prevented from being bent, the electrode terminals are further prevented from being electrically connected with the top cover piece, and the top cover assembly is prevented from being electrically leaked.
In some embodiments of the present application, the fixing member is a conductive block. The electrode terminal is connected with the conductive block, so that the conductive area of the electrode terminal can be increased, and external power supply is facilitated.
In some embodiments of the present application, a second accommodating cavity is formed inside the upper plastic, and at least a portion of the fixing element is disposed in the second accommodating cavity. Locate the second with the mounting and accept the chamber, fix the position of mounting, prevent that the mounting from taking place to deflect, simultaneously, through the contact of the isolated mounting of last plastic and top cap piece, further avoid the emergence of top cap subassembly electric leakage phenomenon.
In some embodiments of the present application, the top cover assembly further includes a connecting portion, the connecting portion with the interposer links to each other, or the connecting portion with the interposer formula structure as an organic whole, the connecting portion with be equipped with the second kink between the interposer, the interposer passes through the connecting portion with the electrode terminal links to each other. Through setting up connecting portion and second kink, be convenient for be connected between adaptor piece and the electrode terminal to be convenient for to the overall structure's of top cap subassembly setting.
In some embodiments of the present application, the connection portion is provided with a connection hole, and the electrode terminal is inserted into the connection hole and connected to the connection portion. Wear to locate the connecting hole with electrode terminal and link to each other with connecting portion, realize electrode terminal and the electrically conductive connection of connecting portion, and then realize electrode terminal and battery tab's electrically conductive connection through switching piece and current collection dish to carry out external power supply through electrode terminal, simultaneously, the setting of connecting hole can carry out effectual fixing to electrode terminal, prevents electrode terminal and connecting portion phase separation, prevents that the battery from taking place to open circuit.
In some embodiments of the present application, when the first bending portion of the bending portion and the second bending portion are in a bending state, the adaptor pieces are parallel to the collecting plate and the connecting portion, respectively. The adapter sheet is arranged in parallel with the current collecting disc and the connecting portion respectively, so that the occupied space of the top cover assembly in the axial direction can be reduced, the space occupancy rate of the electrode assembly can be correspondingly improved, and the electric quantity of the battery is further improved.
In some embodiments of this application, the bolster is the spring, the both ends of spring respectively with the adaptor piece with the current collection dish links to each other. The two ends of the spring are respectively connected with the adapter plate and the current collecting disc, so that the connection strength of the spring can be improved, the spring is prevented from deviating in the extrusion process, and the buffering effect of the counter-rotating connecting plate in the vibration process is guaranteed.
In some embodiments of this application, be equipped with the mounting hole on the top cover plate, electrode terminal wears to locate the mounting hole, just electrode terminal with be equipped with the sealing washer between the mounting hole. Through being equipped with the sealing washer between electrode terminals and mounting hole, can wear to establish the in-process of top cap piece at electrode terminals and prevent to contact with the top cap piece to avoid electrically conductive being connected between electrode terminals and top cap piece, avoid the emergence of top cap subassembly electric leakage phenomenon.
In a second aspect, the present application provides a battery cell having the top cap assembly of the above embodiment.
In a third aspect, the present application provides a battery having the battery cell of the above embodiment.
In a fourth aspect, the present application provides an electric device having the battery in the above embodiment.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a top cover assembly with a first bending portion in a half-bending state according to an embodiment of the present disclosure;
fig. 2 is a schematic cross-sectional view of a top cover assembly with a first bending portion in a half-bending state according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a connection structure of an interposer and a current collecting plate in a half-bent state at a first bending portion according to an embodiment of the present application;
fig. 4 is a schematic cross-sectional view of a top cover assembly with a first bending portion in a bending state according to an embodiment of the present disclosure;
fig. 5 is an enlarged schematic structural view of a portion a of a top cover assembly according to an embodiment of the present disclosure;
FIG. 6 is an exploded view of a cap assembly according to one embodiment of the present disclosure;
fig. 7 is a schematic view of a connection structure between an interposer and a current collecting plate in a flat state at a first bending portion according to an embodiment of the present disclosure.
The reference numbers in the detailed description are as follows:
1: a cap assembly;
10: top cover sheet, 11: mounting hole, 12: exhaust hole, 13: a seal ring;
20: electrode terminal, 21: connecting end, 22: a fixed end;
30: interposer, 31: first bent portion, 32: second bent portion, 33: connecting part, 331: connecting holes;
40: current collecting plate, 41: a pressure relief vent;
50: a buffer member;
60: lower plastic, 61: first housing chamber, 62: first plug hole, 63: a flow guide hole;
70: plastic feeding, 71: second housing chamber, 72: a second plug hole;
80: fixing member, 81: a third jack;
90: explosion-proof valve, 91: explosion-proof valve adhesive tape.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely used to more clearly illustrate the technical solutions of the present application, and therefore, the following embodiments are only used as examples, and the scope of the present application is not limited thereby.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should be given ordinary meanings as understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise specified.
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the embodiments of the present application and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present application.
Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
At present, the application of the power battery is more and more extensive from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanding. In order to ensure that the power battery has high capacity and better safety and cycle life, the valve plate is arranged on the top cover plate of the common power battery, and the valve plate of the power battery can be opened in time to discharge gas generated in the power battery under special conditions (such as thermal runaway, short circuit and the like) of the power battery, so that the safety of the power battery is improved.
The inventor has noted that in the practical use of power batteries, especially in the assembly process of cylindrical batteries, the battery tabs and the electrode terminals are usually connected by using a current collecting disc and an adapter sheet. Wherein, current collecting disc and battery utmost point ear welding, adaptor piece and electrode terminal welding are equipped with the kink between current collecting disc and the adaptor piece, and the kink can release the impact force that the vibration in-process produced, has the effect of buffering damping, has improved the vibration resistance of battery. However, when the number of times of vibration is large, the bent portion is easily subjected to fatigue fracture, which causes disconnection of the battery, thereby affecting the service life of the battery.
In order to solve the problem that fatigue fracture occurs to a bending part between the current collecting disc and the adapter sheet, the applicant researches and discovers that the buffering piece is arranged between the current collecting disc and the adapter sheet, when the top cover assembly vibrates, the buffering piece can provide buffering force for the adapter sheet in the motion process towards the current collecting disc, so that the vibration amplitude of the adapter sheet relative to the current collecting disc is reduced, the extrusion force to the bending part is further reduced, the bending part is prevented from being fractured under long-term vibration extrusion, the use safety and reliability of the battery are ensured, and the service life of the battery is prolonged.
Based on the above consideration, the inventor has conducted extensive research and has designed a top cover assembly, which is provided with a buffer member, and the buffer member is connected with the adapter plate and/or the current collecting plate, and when the bending portion between the adapter plate and the current collecting plate is bent, the buffer member is arranged between the adapter plate and the current collecting plate, so as to provide a buffer force for the adapter plate in the vibration direction, and effectively prevent the fatigue fracture of the bending portion between the current collecting plate and the adapter plate.
The application provides a top cap assembly, and including this kind of top cap assembly's battery monomer, battery and the consumer that uses this battery. Such a cap assembly is applicable to any battery, such as a battery module and a battery pack, or a primary battery and a secondary battery, for example, a secondary battery including a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid (or lead storage) battery, a lithium ion battery, a sodium ion battery, a polymer battery, and the like. The battery is suitable for various electric equipment using the battery, such as mobile phones, portable equipment, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships, spacecrafts and the like, for example, the spacecrafts comprise airplanes, rockets, space shuttles, spacecrafts and the like; the battery is used for providing electric energy for the electric equipment.
It should be understood that the technical solutions described in the embodiments of the present application are not limited to be applied to the above-described battery and electric equipment, but may be applied to all batteries including a box and electric equipment using the battery.
In some embodiments of the present application, a vehicle is provided. The vehicle can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range-extended automobile and the like. The interior of the vehicle is provided with a battery, which may be provided at the bottom or at the head or tail of the vehicle. The battery may be used for power supply of the vehicle, for example, the battery may serve as an operation power source of the vehicle. The vehicle may also include a controller and a motor, the controller being used to control the battery to power the motor, for example, for start-up, navigation, and operational power requirements while traveling of the vehicle.
In some embodiments of the present application, the battery may not only serve as an operating power source for the vehicle, but also as a driving power source for the vehicle, instead of or in part instead of fuel or natural gas, to provide driving power for the vehicle.
In order to meet different power requirements, a battery may include a plurality of battery cells, which are the smallest units constituting a battery module or a battery pack. A plurality of battery cells may be connected in series and/or in parallel via electrode terminals to be applied to various applications. The battery referred to in this application includes a battery module or a battery pack. The plurality of battery cells can be connected in series or in parallel or in series-parallel, and the series-parallel refers to the mixture of series connection and parallel connection. The battery may also be referred to as a battery pack. In the embodiment of the application, a plurality of battery monomers can directly form the battery pack, or the battery module can be formed firstly, and then the battery pack is formed by the battery module.
In some embodiments of the present application, a battery may include a plurality of battery modules and a case, the plurality of battery modules being received inside the case. The box is used for accommodating the battery cells or the battery modules so as to prevent liquid or other foreign matters from influencing the charging or discharging of the battery cells. The box can be simple spatial structure such as solitary cuboid or cylinder or spheroid, also can be the complicated spatial structure that simple spatial structure such as cuboid or cylinder or spheroid made up, and this application embodiment is not restricted to this. The material of the box body may be an alloy material such as an aluminum alloy and an iron alloy, a polymer material such as polycarbonate and polyisocyanurate foam, or a composite material such as glass fiber and epoxy resin, which is not limited in the embodiment of the present invention.
In some embodiments of the present application, the case may include a first portion and a second portion, the first portion and the second portion covering each other, and the first portion and the second portion together defining a space for accommodating the battery cell. The second part can be a hollow structure with one open end, the first part can be a plate-shaped structure, and the first part covers the open side of the second part, so that the first part and the second part jointly define a space for accommodating the battery monomer; the first part and the second part can be hollow structures with one side opened, and the opening side of the first part is covered on the opening side of the second part.
In some embodiments of the present application, the battery module may include a plurality of battery cells, and the plurality of battery cells may be connected in series or in parallel or in series-parallel to form the battery module, and then the plurality of battery modules are connected in series or in parallel or in series-parallel to form the battery. In the present application, the battery cell may include a lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in a packaging manner: the single laminate polymer battery monomer of cylindricality battery, square body square battery monomer, this application embodiment is to this also not limited. However, for the sake of brevity, the following embodiments are described by taking a cylindrical battery cell as an example.
In some embodiments of the present application, a battery cell refers to the smallest unit constituting a battery. The battery cell comprises a top cover component, a shell and an electrode component.
The top cap assembly is a member covering the opening of the case to isolate the internal environment of the battery cell from the external environment. Without limitation, the shape of the cap assembly may be adapted to the shape of the housing to fit the housing. Optionally, the top cover assembly can be made of a material (such as an aluminum alloy) with certain hardness and strength, so that the top cover assembly is not easy to deform when being extruded and collided, the single battery can have higher structural strength, and the safety performance can be improved. Functional parts such as electrode terminals and the like may be provided on the cap assembly. The electrode terminals may be used to be electrically connected with the electrode assembly for outputting or inputting electric energy of the battery cells. In some embodiments, a pressure relief mechanism for relieving the internal pressure of the battery cell when the internal pressure or temperature of the battery cell reaches a threshold value may be further disposed on the cap assembly. In some embodiments, an insulator may also be provided on the inside of the header assembly, which may be used to isolate the electrical connection components within the housing from the header assembly to reduce the risk of short circuits. Illustratively, the insulator may be plastic, rubber, or the like.
The case is an assembly for cooperating with the cap assembly to form an internal environment of the battery cell, wherein the formed internal environment may be used to house the electrode assembly, the electrolyte, and other components. The housing and the cap assembly may be separate parts, and an opening may be formed in the housing, and the cap assembly may cover the opening at the opening to form an internal environment of the battery cell. The top cover assembly and the housing may be integrated, and specifically, the top cover assembly and the housing may form a common connecting surface before other components are inserted into the housing, and when the interior of the housing needs to be sealed, the housing is covered by the top cover assembly. The housing may be of various shapes and sizes, such as rectangular parallelepiped, cylindrical, hexagonal prism, etc. Specifically, the shape of the case may be determined according to the specific shape and size of the electrode assembly. The material of the housing may be various, for example, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in this application.
The electrode assembly is a component in which electrochemical reactions occur in the battery cell. One or more electrode assemblies may be contained within the housing. The electrode assembly is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally disposed between the positive electrode sheet and the negative electrode sheet. The portions of the positive and negative electrode tabs having the active material constitute the body portions of the electrode assembly, and the portions of the positive and negative electrode tabs having no active material each constitute a tab (not shown in the drawings). The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or at both ends of the main body portion, respectively. During the charging and discharging process of the battery, the positive active material and the negative active material react with the electrolyte, and the tabs are connected with the electrode terminals to form a current loop.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a top cover assembly 1 in a half-folded state of a first bent portion 31 according to an embodiment of the present application; fig. 2 is a schematic cross-sectional structural view of the top cover assembly 1 in a half-folded state with the first folded portion 31 according to an embodiment of the present disclosure; fig. 3 is a schematic view of a connection structure between the interposer 30 and the current collecting plate 40, in which the first bending portion 31 is in a half-bent state according to an embodiment of the present application; fig. 4 is a schematic cross-sectional structure view of the top cap assembly 1 in a state where the first bending portion 31 is bent according to an embodiment of the present disclosure; fig. 5 is an enlarged schematic structural diagram of a portion a of the top cover assembly 1 according to an embodiment of the present disclosure. In some embodiments of the present application, the top cover assembly 1 includes a top cover sheet 10, an electrode terminal 20, an interposer 30, a current collecting plate 40 and a buffer 50, the electrode terminal 20 is disposed through the top cover sheet 10, the interposer 30 is connected to the electrode terminal 20, the current collecting plate 40 is connected to the interposer 30, a first bending portion 31 is formed at a connection portion between the current collecting plate 40 and the interposer 30, the buffer 50 is connected to the interposer 30 and/or the current collecting plate 40, and when the first bending portion 31 is in a bent state, the buffer 50 is disposed between the interposer 30 and the current collecting plate 40, and two ends of the buffer 50 are respectively abutted to the interposer 30 and the current collecting plate 40.
Specifically, the current collecting plate 40 is used for covering the housing opening of the battery cell, and is used together with the interposer 30 for connecting the tab of the electrode assembly in the housing and the electrode terminal 20 of the cap assembly 1. The current collecting plate 40 and the interposer 30 need to be made of conductive metal material to ensure that they can be used as good conductors between the tab and the electrode terminal 20 after being connected to the tab and the electrode terminal 20. The manifold disk 40 and the interposer 30 may be of unitary construction, or of split construction. When the collecting plate 40 and the adaptor plate 30 are of a split structure, they can be connected into a whole by means of plugging, clamping or welding, and can conduct electricity with each other. Furthermore, a first bending portion 31 is disposed between the collecting plate 40 and the interposer 30, and the first bending portion 31 may be a part of the collecting plate 40, or the first bending portion 31 may be a part of the interposer 30, or the first bending portion 31, the collecting plate 40 and the interposer 30 are integrated.
The buffer member 50 is connected to the surface of the adaptor sheet 30 facing the current collecting plate 40, or the buffer member 50 is connected to the surface of the current collecting plate 40 facing the adaptor sheet 30, or the buffer member 50 is connected to both the adaptor sheet 30 and the current collecting plate 40, and when the first bending portion 31 is in the bending state, the buffer member 50 is disposed between the adaptor sheet 30 and the current collecting plate 40, and both ends of the buffer member 50 are respectively abutted to the adaptor sheet 30 and the current collecting plate 40.
In the technical scheme of this application, through setting up bolster 50, and be under the bending state when first kink 31, bolster 50 is located between adaptor piece 30 and the current collecting disc 40, and the both ends of bolster 50 respectively with adaptor piece 30 and current collecting disc 40 looks butt, when top cap assembly 1 takes place the vibration, bolster 50 can provide the cushion effect for adaptor piece 30 in the motion process towards current collecting disc 40, thereby reduce the relative current collecting disc 40's of adaptor piece 30 vibration range, and then reduce the extrusion force to first kink 31, prevent that first kink 31 from breaking down under the long-term vibration extrusion, guarantee security and the reliability that the battery used, improve battery life.
Fig. 6 is an exploded schematic view of the top cover assembly 1 according to an embodiment of the present disclosure, as shown in fig. 2, 4, 5 and 6. In some embodiments of the present application, the top cover assembly 1 further includes a lower plastic 60, the lower plastic 60 is disposed on one side of the top cover 10 and is electrically connected to the top cover 10 in a non-conductive manner, a first receiving cavity 61 is formed inside the lower plastic 60, and when the first bending portion 31 is bent, the adaptor sheet 30 and the current collecting tray 40 are disposed in the first receiving cavity 61 together.
Specifically, the lower plastic 60 may be selected from a plastic material, or other non-conductive material. The lower plastic 60 is attached to the bottom surface of the top cover sheet 10 facing the electrode assembly, and the attachment may be by adhesive bonding. The lower plastic 60 is formed with a first receiving cavity 61 therein, and the lower plastic 60 is provided with an opening facing the electrode assembly, through which the tab 30 and the current collecting plate 40 can be mounted into the first receiving cavity 61 of the lower plastic 60, and the current collecting plate 40 is connected to the tab of the electrode assembly through the opening, thereby supplying power to the electrode terminal 20. When the bending angle of the first bending portion 31 is 180 °, the adaptor sheet 30 and the current collecting tray 40 are disposed in the first receiving cavity 61 together.
The adapter plate 30 and the current collecting plate 40 are jointly arranged in the first accommodating cavity 61, the adapter plate 30 and the current collecting plate 40 are protected by the lower plastic 60, scratching of the adapter plate 30 and the current collecting plate 40 is prevented, and the adapter plate 30 and the current collecting plate 40 are prevented from being damaged. Meanwhile, since the lower plastic 60 is an insulating member and is electrically connected to the top cover 10 in a non-conductive manner, and the portion of the electrode terminal 20 connected to the interposer 30 is disposed in the first receiving cavity 61, the occurrence of a conductive phenomenon between the electrode terminal 20 and the top cover 10 can be effectively avoided, the occurrence of a leakage phenomenon of the top cover assembly 1 can be prevented, and the safety and reliability of the battery can be further improved.
As shown in fig. 6, in some embodiments of the present disclosure, the lower plastic 60 is provided with a first insertion hole 62 for the electrode terminal 20 to pass through, and/or the lower plastic 60 is provided with a flow guiding hole 63 opposite to the pressure relief mechanism on the top cover sheet 10.
Specifically, the pressure relief mechanism includes an explosion-proof valve 90. The electrode terminal 20 includes a connection end 21 and a fixed end 22, the fixed end 22 is connected to the interposer 30 and disposed in the first accommodation cavity 61, and the connection end 21 sequentially penetrates through the lower plastic 60 and the top cover 10 for supplying power to the outside. Because plastic 60 sets up with the bottom surface laminating of top cap piece 10 down, in order to guarantee that electrode terminal 20 can wear to locate top cap piece 10 and supply power to the outside, be equipped with the first spliced eye 62 that supply electrode terminal 20 to wear to establish on the lower plastic 60, electrode terminal 20's link 21 passes first spliced eye 62 to further pass top cap piece 10, thereby supply power to the outside. Meanwhile, the top cover plate 10 is provided with an exhaust hole 12, the exhaust hole 12 penetrates through the top cover plate 10, the edge of the exhaust hole 12 is arranged in a concave manner relative to the plate surface of the top cover plate 10, so that a stepped structure is formed, the explosion-proof valve 90 is connected with the edge of the exhaust hole 12, the specific connection mode can adopt adhesive bonding, the explosion-proof valve 90 is bonded with the edge of the exhaust hole 12 through an explosion-proof valve adhesive tape 91, and the exhaust hole 12 corresponds to the center position of the explosion-proof valve 90. In order to ensure that the explosion-proof valve 90 can release pressure under the condition of increasing the internal pressure of the battery, and prevent the battery from bursting, the lower plastic 60 is provided with a diversion hole 63 which is opposite to the explosion-proof valve 90 on the top cover plate 10. As shown in fig. 7, fig. 7 is a schematic view of a connection structure between the interposer 30 and the current collecting plate 40, where the first bent portion 31 is in a flat state according to an embodiment of the present disclosure. The collecting plate 40 is further provided with a pressure relief hole 41, and gas generated from the electrode assembly can flow into the cap assembly 1 through the pressure relief hole 41. After top cap subassembly 1 assembles to battery case, and when atmospheric pressure in the battery risees, high-pressure gas can loop through pressure release hole 41, water conservancy diversion hole 63 and exhaust hole 12 and act on explosion-proof valve 90 on top cap piece 10 to make explosion-proof valve 90 explode, and then realize the inside pressure release of battery, prevent because the too big explosion that leads to the battery of the pressure in the battery case.
Referring again to fig. 2, 4, 5 and 6, in some embodiments of the present disclosure, the top cap assembly 1 further includes an upper plastic 70, the upper plastic 70 is disposed on the other side of the top cap sheet 10, and the electrode terminal 20 sequentially passes through the lower plastic 60, the top cap sheet 10 and the upper plastic 70.
Specifically, the upper plastic 70 may be selected from a plastic material, or other non-conductive material. The upper plastic 70 is attached to the top surface of the top cover plate 10 away from the electrode assembly, and the specific connection method may be glue joint. The upper plastic 70 is provided with a second insertion hole 72 for the connection end 21 of the electrode terminal 20 to pass through.
The connecting end 21 of the electrode terminal 20 sequentially penetrates through the lower plastic 60, the top cover plate 10 and the upper plastic 70, so that the upper plastic 70 is arranged between the top end of the connecting end 21 of the electrode terminal 20 and the top cover plate 10, and the lower plastic 60 is respectively arranged between the fixed end 22 of the electrode terminal 20 and the top cover plate 10, thereby jointly preventing the electrode terminal 20 from being electrically connected with the top cover plate 10 through the upper plastic 70 and the lower plastic 60, and further preventing the top cover assembly 1 from generating an electric leakage phenomenon.
Referring to fig. 1 to 6, in some embodiments of the present disclosure, the top cover assembly 1 further includes a fixing member 80, the fixing member 80 is disposed on a side of the upper plastic 70 facing away from the top cover sheet 10, and the electrode terminal 20 passes through the upper plastic 70 and is connected to the fixing member 80.
Specifically, the fixing member 80 is disposed on the top of the upper plastic 70 away from the top cover plate 10, the fixing member is provided with a third inserting hole 81 for the electrode terminal to pass through, the connecting end 21 of the electronic terminal 20 passes through the second inserting hole 72 and the third inserting hole 81 and is connected to the fixing member 80, and the specific connection mode may be riveting, so as to increase the connection strength between the electrode terminal 20 and the fixing member 80 and prevent the fixing member 80 from coming off from the axial direction of the electrode terminal 20.
The fixing part 80 is arranged to fix the electrode terminal 20, so that the electrode terminal 20 is prevented from being bent, the electrode terminal 20 is further prevented from being conductively connected with the top cover sheet 10, and the electric leakage phenomenon of the top cover assembly 1 is prevented.
In some embodiments of the present application, the fixing member 80 is a conductive block.
Specifically, the fixing member 80 may be a copper block having good conductivity, and connecting the electrode terminal 20 with the conductive block can increase the conductive area of the electrode terminal 20, thereby facilitating power supply to the outside.
In some embodiments of the present disclosure, as shown in fig. 2 to 6, a second receiving cavity 71 is formed inside the upper plastic 70, and at least a portion of the fixing member 80 is disposed in the second receiving cavity 71.
Go up the inside of plastic 70 and be formed with the second and accept chamber 71, and go up and be equipped with the opening that deviates from top cap piece 10 on the plastic 70, at least partial mounting 80 passes through this opening joint and accepts chamber 71 in the second to fix the position of mounting 80, prevent that mounting 80 from taking place the deflection, simultaneously, through the isolated mounting 80 of last plastic 70 and the contact of top cap piece 10, further avoid the emergence of top cap subassembly 1 electric leakage phenomenon.
As shown in fig. 2 to 7, in some embodiments of the present application, the top cap assembly 1 further includes a connecting portion 33, the connecting portion 33 is connected to the interposer 30, or the connecting portion 33 and the interposer 30 are in an integral structure, a second bending portion 32 is disposed between the connecting portion 33 and the interposer 30, and the interposer 30 is connected to the electrode terminal 20 through the connecting portion 33.
Specifically, the connecting portion 33 and the current collecting plate 40 are respectively arranged at two ends of the interposer 30, a second bending portion 32 is arranged between the connecting portion 33 and the interposer 30, a first bending portion 31 is arranged between the current collecting plate 40 and the interposer 30, and the connecting portion 33, the interposer 30 and the current collecting plate 40 can be conveniently arranged into a plurality of bending forms as required through arrangement of the first bending portion 31 and the second bending portion 32, so that connection between the interposer 30 and the electrode terminal 20 is facilitated, and further, arrangement of the integral structure of the top cover assembly 1 is facilitated.
As shown in fig. 6 and 7, in some embodiments of the present application, the connection portion 33 is provided with a connection hole 331, and the electrode terminal 20 is inserted into the connection hole 331 and connected to the connection portion 33.
The connecting end 21 of the electrode terminal 20 is inserted into the connecting hole 331 and connected to the connecting portion 33, so that the electrode terminal 20 is electrically connected to the connecting portion 33, and further, the electrode terminal 20 is electrically connected to a battery tab through the adaptor plate 30 and the current collecting plate 40, so that external power supply is performed through the electrode terminal 20, and meanwhile, the connecting hole 331 can effectively fix the electrode terminal 20, prevent the electrode terminal 20 from being separated from the connecting portion 33, and prevent the battery from being broken. Wherein the connection end 21 is inserted into the connection hole 331 and welded thereto in order to secure the connection strength between the electrode terminal 20 and the connection part 33.
In some embodiments of the present disclosure, as shown in fig. 4 and 5, when the first bent portion 31 and the second bent portion 32 are bent, the adaptor sheet 30 is disposed parallel to the collecting plate 40 and the connecting portion 33.
Specifically, when the first bent portion 31 and the second bent portion 32 are bent by 180 °, the interposer 30 is disposed in parallel with the collecting tray 40 and the connecting portion 33, respectively.
By arranging the adaptor sheet 30 in parallel with the current collecting disc 40 and the connecting portion 33, the occupied space of the top cover assembly 1 in the axial direction can be reduced, the space occupancy rate of the electrode assembly can be correspondingly improved, and the battery capacity can be further improved.
Referring to fig. 1 to 7, in some embodiments of the present application, the buffer member 50 is a spring, and both ends of the spring are respectively connected to the adaptor plate 30 and the current collecting plate 40.
The two ends of the spring are respectively connected with the adapter plate 30 and the current collecting disc 40, so that the connection strength of the spring can be improved, the spring is prevented from deviating in the extrusion process, and the buffering effect of the adapter plate 30 in the vibration process is guaranteed.
In some embodiments of the present application, the top cover sheet 10 is provided with a mounting hole 11, the electrode terminal 20 is disposed through the mounting hole 11, and a sealing ring 13 is disposed between the electrode terminal 20 and the mounting hole 11.
In particular, the sealing ring 13 may be a rubber ring, or a sealing ring made of other non-conductive material. The sealing ring 13 is sleeved on the outer peripheral surface of the connecting end 21 of the electrode terminal 20, clamped in the mounting hole 11, and clamped and fixed by the connecting end 21 and the top cover piece 10 together.
Through being equipped with sealing washer 13 between electrode terminal 20 and mounting hole 11, can wear to establish the in-process of top cover piece 10 at electrode terminal 20 and prevent to contact with top cover piece 10 to avoid conducting connection between electrode terminal 20 and top cover piece 10, avoid top cap subassembly 1 electric leakage's emergence.
According to some embodiments of the present application, there is provided a battery cell having the top cap assembly 1 of any of the above embodiments.
According to some embodiments of the present application, there is provided a battery having the battery cell of any of the above embodiment modes.
According to some embodiments of the present application, there is provided a power consumption apparatus having the battery of any of the above embodiments, and the battery is used for supplying power to a power consumption device.
The electric device can be any one of the aforementioned devices or systems using batteries.
According to some embodiments of the present disclosure, as shown in fig. 1 to 7, the top cap assembly 1 includes a top cap sheet 10, a lower plastic 60 and an upper plastic 70 are respectively disposed on two sides of the top cap sheet 10, a first receiving cavity 61 is disposed in the lower plastic 60, and a second receiving cavity 71 is disposed in the upper plastic 70. The adaptor sheet 30 is provided with a current collecting plate 40 and a connecting part 33 at two ends thereof, and the adaptor sheet 30, the current collecting plate 40 and the connecting part 33 are of an integrated structure. A first bending part 31 is arranged between the adaptor sheet 30 and the collecting tray 40, a second bending part 32 is arranged between the adaptor sheet 30 and the connecting part 33, and when the first bending part 31 and the second bending part 32 are respectively bent to 180 degrees, the adaptor sheet 30, the collecting tray 40 and the connecting part 33 are arranged in parallel and are jointly arranged in the first accommodating cavity 61. The fixed end 22 of the electrode terminal 20 is also disposed in the first receiving cavity 61 and connected to the connecting portion 33, and the connecting end 21 of the electrode terminal 20 passes through the lower plastic 60, the top cover sheet 10 and the upper plastic 70 in this order and is riveted to the fixing member 80 in the second receiving cavity 71, thereby supplying power to the outside through the electrode terminal 20. Meanwhile, still be equipped with bolster 50 between adaptor plate 30 and current collection dish 40, like the spring, the both ends of bolster 50 link to each other with adaptor plate 30 and current collection dish 40 respectively, thereby when top cap assembly 1 takes place the vibration, bolster 50 can provide the cushion force for adaptor plate 30 towards current collection dish 40's motion in-process, thereby reduce the relative current collection dish 40's of adaptor plate 30 vibration range, and then reduce the extrusion force to first kink 31, prevent that first kink 31 from breaking down under the extrusion of long-term vibration, guarantee security and reliability that the battery used, improve battery life.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application, and are intended to be covered by the claims and the specification of the present application. In particular, the features mentioned in the embodiments can be combined in any manner as long as there is no structural conflict. This application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (15)
1. A header assembly, comprising:
a top cover sheet;
the electrode terminal penetrates through the top cover plate;
the adapter plate is connected with the electrode terminal;
the flow collecting disc is connected with the adapter sheet, and a first bending part is formed at the connecting part of the flow collecting disc and the adapter sheet;
the buffer piece, the buffer piece with the switching piece link to each other and/or with the current collection dish links to each other, and works as under first kink is the state of buckling, the buffer piece is located the switching piece with between the current collection dish, just the both ends of buffer piece respectively with the switching piece with current collection dish looks butt.
2. The top cap assembly of claim 1, further comprising a lower plastic disposed on one side of the top cap piece and electrically connected to the top cap piece in a non-conductive manner, wherein a first receiving cavity is formed inside the lower plastic, and when the first bending portion is bent, the adaptor piece and the manifold are disposed together in the first receiving cavity.
3. The top cover assembly of claim 2, wherein the lower plastic is provided with a first insertion hole for the electrode terminal to pass through, and/or the lower plastic is provided with a flow guide hole opposite to the pressure relief mechanism on the top cover plate.
4. The header assembly of claim 2, further comprising an upper plastic disposed on the other side of the top cover piece and electrically non-conductively coupled to the top cover piece, wherein the electrode terminals pass through the lower plastic, the top cover piece, and the upper plastic in sequence.
5. The top cap assembly of claim 4, further comprising a fixing member disposed on a side of the upper plastic facing away from the top cover sheet, wherein the electrode terminal passes through the upper plastic and is fixedly connected to the fixing member.
6. The header assembly of claim 5, wherein the securing members are conductive bumps.
7. The assembly of claim 6, wherein the upper plastic defines a second cavity therein, and at least a portion of the fastener is disposed in the second cavity.
8. The top cap assembly of claim 1, further comprising a connecting portion, wherein the connecting portion is connected to the interposer, or the connecting portion and the interposer are integrated, a second bending portion is disposed between the connecting portion and the interposer, and the interposer is connected to the electrode terminal through the connecting portion.
9. The top cap assembly according to claim 8, wherein the connecting portion is provided with a connecting hole, and the electrode terminal is inserted through the connecting hole and connected to the connecting portion.
10. The header assembly of claim 8, wherein the adaptor piece is disposed parallel to the manifold and the connecting portion when the first and second bent portions are bent.
11. The header assembly of any one of claims 1-10, wherein the buffer is a spring, and wherein two ends of the spring are connected to the adaptor plate and the collector plate, respectively.
12. The top cover assembly according to any one of claims 1 to 10, wherein the top cover sheet is provided with a mounting hole, the electrode terminal is arranged in the mounting hole in a penetrating manner, and a sealing ring is arranged between the electrode terminal and the mounting hole.
13. A battery cell having the top cap assembly of any one of claims 1 to 12.
14. A battery having the battery cell of claim 13.
15. An electric device characterized by having the battery according to claim 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221880394.0U CN217562780U (en) | 2022-07-21 | 2022-07-21 | Top cap subassembly, battery monomer, battery and consumer |
| PCT/CN2022/118457 WO2024016451A1 (en) | 2022-07-21 | 2022-09-13 | Top cover assembly, battery cell, battery and electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221880394.0U CN217562780U (en) | 2022-07-21 | 2022-07-21 | Top cap subassembly, battery monomer, battery and consumer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217562780U true CN217562780U (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221880394.0U Active CN217562780U (en) | 2022-07-21 | 2022-07-21 | Top cap subassembly, battery monomer, battery and consumer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217562780U (en) |
| WO (1) | WO2024016451A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116526082A (en) * | 2023-06-29 | 2023-08-01 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and household energy storage system |
| CN116544625A (en) * | 2023-06-29 | 2023-08-04 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| WO2024222071A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Current collecting disc, end cover assembly, energy storage device and electric apparatus |
| WO2024222081A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Energy storage apparatus and electric device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10199626B2 (en) * | 2017-04-28 | 2019-02-05 | Nio Usa, Inc. | Spring loaded busbar for laser welding operation |
| CN213584079U (en) * | 2020-12-11 | 2021-06-29 | 横店集团东磁股份有限公司 | Current collecting disc and battery |
| CN216719997U (en) * | 2022-01-25 | 2022-06-10 | 宁德时代新能源科技股份有限公司 | Current collecting disc, top cover, battery monomer, battery and power utilization device |
| CN114759296B (en) * | 2022-04-06 | 2024-08-16 | 宁德时代新能源科技股份有限公司 | Micro-resistance strong overcurrent safety top cover structure |
-
2022
- 2022-07-21 CN CN202221880394.0U patent/CN217562780U/en active Active
- 2022-09-13 WO PCT/CN2022/118457 patent/WO2024016451A1/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024222071A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Current collecting disc, end cover assembly, energy storage device and electric apparatus |
| WO2024222081A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | Energy storage apparatus and electric device |
| CN116526082A (en) * | 2023-06-29 | 2023-08-01 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and household energy storage system |
| CN116544625A (en) * | 2023-06-29 | 2023-08-04 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| CN116526082B (en) * | 2023-06-29 | 2023-09-12 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and household energy storage system |
| CN116544625B (en) * | 2023-06-29 | 2023-12-26 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024016451A1 (en) | 2024-01-25 |
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