CN110676502A - Manufacturing method of Bluetooth headset battery - Google Patents
Manufacturing method of Bluetooth headset battery Download PDFInfo
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- CN110676502A CN110676502A CN201910830790.9A CN201910830790A CN110676502A CN 110676502 A CN110676502 A CN 110676502A CN 201910830790 A CN201910830790 A CN 201910830790A CN 110676502 A CN110676502 A CN 110676502A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A manufacturing method of a Bluetooth headset battery comprises the following steps: s1: preparing a core package; s2: placing the core in a drying room for baking, wherein the drying room comprises a drying room area A, a liquid injection room area A, an air shower and an operation assembly area; s3: after being baked in the oven, the core packet enters the area A of the drying room through the oven, and the baked core packet and the sealing cover are sleeved in the area A of the drying room; s4, the nested core package enters an area A of the liquid injection chamber through a transfer box, and the nested core package and the sealing cover are impregnated in electrolyte in an operation assembly area by using operation gloves; and S5, placing the impregnated core bag and the sealing cover in an aluminum shell, and sealing the aluminum shell by a sealing machine to obtain the Bluetooth headset battery. The invention can avoid the problem that the battery core cladding absorbs water again in the processing process, improves the production efficiency, and the prepared Bluetooth earphone battery has good charge and discharge performance and longer service life.
Description
Technical Field
The invention relates to the field of batteries, in particular to a manufacturing method of a Bluetooth headset battery.
Background
The Bluetooth headset is a small device based on Bluetooth technology, and free communication can be realized only by hiding the light device at the headset without directly using communication equipment (mobile phones, computers and the like). The Bluetooth earphone applies the Bluetooth technology to the hands-free earphone, so that users can avoid annoying wiring stumbling and can easily talk in various ways. Since the advent of bluetooth headsets, it has been a good tool for business to improve communication efficiency.
In the bluetooth headset battery manufacture process, need dry the battery core package, guarantee that the moisture control that the battery core package contains is within certain scope, just can carry out the operation on next step afterwards. The influence of moisture on the performance of the Bluetooth battery is great, the Bluetooth headset battery can only tolerate the water content below 100ppm at the present stage, and when the moisture in the battery exceeds the standard, the battery has the problems of low capacity, gas expansion, high internal resistance, shortened cycle life and the like, so the control of the moisture in the manufacturing process of the Bluetooth headset battery is particularly strict. Need carry out follow-up operation after the bluetooth headset battery is dried, make battery core package moisture absorption in the air in transporting and the storage process to battery core package, cause secondary pollution, increased the interior moisture of battery.
The biggest problem of the Bluetooth earphones in the market is still the battery endurance problem, the battery charging time is long, but the charging current for quickly charging the battery is large and reaches 100 milliamperes, and a pair of guide bars used by the original needle type Bluetooth earphone battery are used as positive and negative electrode outputs, so that the problems of internal heating, rapid capacity drop, product failure and the like are easily caused because large current cannot be borne for a long time.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a manufacturing method of a Bluetooth headset battery, the prepared Bluetooth headset battery has good charge and discharge performance, the charge odds ratio is improved, the quality and the service life of the battery are ensured, and the core bag is processed in a drying room to avoid water absorption again.
A manufacturing method of a Bluetooth headset battery comprises the following steps:
s1: preparing a core package;
s2: placing the core in a drying room for baking, wherein the drying room comprises a drying room A area, a liquid injection room A area, a wind shower room and an operation assembly area, the dew point of the drying room A area is L1, the dew point of the liquid injection room A area is L2, the numerical value of L1 is greater than the numerical value of L2, an oven is embedded in the drying room A area, and the oven is of a double-door structure which is communicated with the outside of the drying room and the drying room A area;
s3: after being baked in the oven, the core packet enters the area A of the drying room through the oven, and the baked core packet and the sealing cover are sleeved in the area A of the drying room;
s4, a transfer box is arranged between the drying room A area and the liquid injection chamber A area, a glass wall is arranged between the operation assembly area and the liquid injection chamber A area, a plurality of operation gloves are detachably mounted on the glass wall, the sleeved core package and the sealed cover enter the liquid injection chamber A area through the transfer box, and the operation gloves are used in the operation assembly area to impregnate the sleeved core package and the sealed cover into electrolyte.
And S5, placing the impregnated core bag and the sealing cover in an aluminum shell, and sealing the aluminum shell through a sealing machine to obtain the Bluetooth headset battery, wherein the sealing machine is arranged in the area A of the injection chamber.
2. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the step S1 includes the following steps:
s11: coating a conductive coating, namely coating conductive slurry on the surfaces of the aluminum foil and the copper foil;
s12: coating, namely coating the positive electrode slurry on an aluminum foil to prepare a positive electrode plate, and coating the negative electrode slurry on a copper foil to prepare a negative electrode plate;
s13: slicing, namely cutting the positive and negative pole pieces, the negative pole piece and the diaphragm into preset sizes;
s14: rivet welding positive and negative nail pins: respectively welding a positive nail needle and a negative nail needle on the positive pole piece and the negative pole piece;
s15: and winding the rivet-welded positive nail, negative nail, positive and negative pole pieces, negative pole piece and diaphragm together to form a core package.
Preferably, the L1 is below-45 ℃, and the L2 is below-60 ℃.
Preferably, the step S5 is followed by the following steps:
s6: the method comprises the steps of applying direct-current voltage to a Bluetooth headset battery, and activating the battery to enable the battery to be charged;
s7: testing and sorting, measuring battery parameters and removing defective products;
s8: and (5) packaging, namely filling the qualified product into a packaging box and packaging.
Preferably, the conductive paste consists of 90-97.2 wt% of NMP, 2.8 wt% of ~ 10 wt% of PVDF, carbon black and multi-walled carbon nanotubes, wherein the weight ratio of the PVDF to the carbon black to the multi-walled carbon nanotubes is 1: 50: 5.
Preferably, the cathode slurry comprises a cathode active material, a binder, a conductive agent and a solvent, and the anode slurry comprises an anode active material, a binder, a conductive agent and a solvent.
Preferably, an access door is arranged between the area A of the drying room and the area A of the liquid injection chamber.
Preferably, the operating glove closest to the transfer box can take the core package in the transfer box, every two adjacent operating gloves can hold each other, and the sealing machine is arranged on the side of the glass wall.
Preferably, drying room A district side be equipped with drying room B district, operation equipment district side be equipped with annotate liquid room B district, the air shower be equipped with the air shower room door three that leads to drying room B district, operation equipment district can be operated annotating the core package in the liquid room B district.
The invention provides a manufacturing method of a Bluetooth headset battery, which is characterized in that a core bag is placed in a drying room for baking, assembling, impregnating and sealing, so that the problem that the battery absorbs water again in the processing process can be avoided, the time for transferring and storing is reduced, the production efficiency is improved, and the quality of the Bluetooth headset battery is ensured; the manufacturing method is simple, the positive and negative electrode nails are riveted with the positive and negative electrode plates through multiple welding spots, the contact resistance is reduced, the electric breakdown phenomenon under the conditions of high voltage and large current is avoided, the charging odds ratio is improved, the electrolyte improves the quick charging cycle performance of the battery, the conductive coating can reduce the increase of the dynamic internal resistance of the core package, the pressure difference consistency of the battery is improved, and the service life of the battery is prolonged; the prepared Bluetooth earphone battery has good charge and discharge performance, the heat productivity of the positive electrode nail needle and the negative electrode nail needle is small, the sealing performance of the sealed battery is good, leakage is effectively prevented, and the battery also has good explosion-proof performance.
Drawings
FIG. 1 is a schematic plan view of a drying room of the present invention;
fig. 2 is a schematic view of the core package of the present invention before winding;
fig. 3 is a schematic structural diagram of the core pack of the present invention;
fig. 4 is an exploded view of the core package of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A manufacturing method of a Bluetooth headset battery comprises the following steps: the method comprises the following steps:
s1, preparing the core package 106, including the following steps S11 ~ S15;
s11, coating a conductive coating, namely coating conductive slurry on the surfaces of an aluminum foil and a copper foil, wherein the coating thickness is 1 ~ 3 microns, the conductive slurry consists of 90-97.2% by mass of NMP and 2.8- ~ 10% by mass of PVDF, carbon black and multi-walled carbon nanotubes, and the weight ratio of the PVDF to the carbon black to the multi-walled carbon nanotubes is 1: 50: 5;
s12: coating, namely coating the positive electrode slurry on an aluminum foil to prepare a positive electrode plate 101, coating the negative electrode slurry on a copper foil to prepare a negative electrode plate 102, wherein the positive electrode slurry comprises a positive electrode active material, a bonding agent, a conductive agent and a solvent, and the negative electrode slurry comprises a negative electrode active material, a bonding agent, a conductive agent and a solvent;
s13: slicing, namely cutting the positive and negative electrode plates 101, the negative electrode plate 102 and the diaphragm 100 into preset sizes;
s14: rivet welding positive and negative nail pins: respectively welding a positive nail 103 and a negative nail 104 on the positive pole piece 101 and the negative pole piece 102;
s15: winding the rivet-welded positive nail 103, negative nail 104, positive and negative pole pieces 101, negative pole piece 102 and diaphragm 100 together to form a core package, wherein the core package 106 is formed by stacking the diaphragm 100, the positive pole piece 101 and the negative pole piece 102 in sequence from outside to inside and winding the diaphragm 100, the positive pole piece 101, the negative pole piece 102, the positive nail 103 and the negative pole nail 104 clockwise, and the diaphragm 100, the positive pole piece 101, the negative pole piece 102, the positive nail 103 and the negative pole nail 104 are wound into the core package through anaerobic adhesive outside the diaphragm 100;
the positive and negative electrode plates 101 and 102 are riveted by multi-welding spot welding, the welding aperture is 0.5 mm, and the riveting positions of the positive nail 103 and the negative nail 104 are plated with nickel.
S2: placing the core package 106 into a drying room 1 for baking, wherein the drying room 1 comprises a drying room A area 2, a liquid injection room A area 3, a wind shower 4 and an operation assembly area 5, the dew point of the drying room A area 2 is L1, the dew point of the liquid injection room A area 3 is L2, and the numerical value of L1 is greater than that of L2, in the embodiment, L1 is below 45 ℃ below zero, L2 is below 60 ℃ below zero, an oven 6 is embedded in the drying room A area 2, and the oven 6 is of a double-door structure communicating the outside of the drying room 1 with the drying room A area 2;
s3: after the core package is baked in the oven 6, the core package enters the area A2 of the drying room through the oven 6, the baked core package 106 and the sealing cover 105 are sleeved in the area A2 of the drying room, and the sealing cover 105 is connected to the tops of the positive pole nail needles 103 and the negative pole nail needles 104;
s4, arranging a transfer box 7 between a drying room A area 2 and a liquid injection chamber A area 3, arranging a glass wall 51 between an operation assembly area 5 and the liquid injection chamber A area 3, detachably installing a plurality of operation gloves 52 on the glass wall 51, enabling the sleeved core cladding 106 and a sealing cover 105 to enter the liquid injection chamber A area 3 through the transfer box 7, and soaking the sleeved core cladding and the sealing cover in electrolyte in the operation assembly area 5 by using the operation gloves 52; the nearest operating glove to the transfer box 7 can take the core package in the transfer box 7, every two adjacent operating gloves 52 can be held each other, no operating personnel can be arranged in the liquid injection chamber A area 3, an operating console is arranged on the edge of the glass wall 51, the operating personnel immerses the core package sleeved with the sealing cover through the operating gloves 52, and the operating personnel is prevented from entering the liquid injection chamber A area 3 to influence the dew point. Operation gloves 52 cooperation operation panel makes semi-manufactured goods can remove the operation panel from transfer box 7, also can remove the product through operation gloves on the operation panel, does not need operating personnel just can accomplish the impregnation to the battery in annotating liquid chamber A district 3, annotates liquid chamber A district 3 and has certain seal, improves the environmental quality of battery processing, ensures the quality of battery product, avoids influencing operating personnel's healthy again.
In the embodiment, the electrolyte is prepared from a solvent, VC 1.4-1.6%, PS 1.4-1.6% and lithium salt with the concentration of 1.2-1.4mol/L, wherein the solvent is prepared from DEC, EC and DMC according to the proportion of 1:1:1, and the lithium salt is prepared from 80-90% of lithium hexafluorophosphate and 10-20% of lithium bistrifluoromethanesulfonylimide.
And S5, placing the impregnated core package 106 and the sealing cover 105 in an aluminum shell 107, and sealing the core package and the sealing cover by a sealing machine to obtain the Bluetooth headset battery, wherein the sealing machine is arranged in the area A3 of the injection chamber, and the sealing machine is arranged on the side edge 51 of the glass wall or on an operation table.
S6: the method comprises the steps of applying direct-current voltage to a Bluetooth headset battery, and activating the battery to enable the battery to be charged;
s7: testing and sorting, measuring battery parameters and removing defective products;
s8: and (5) packaging, namely filling the qualified product into a packaging box and packaging.
The operation assembly area 5 is provided with a production room door 11 leading to the outside of the drying room 1, the air shower room 4 is provided with an air shower room door I12 leading to the drying room A area 2 and an air shower room door II 13 leading to the operation assembly area, an operator enters the drying room through the production room door 11, the operation assembly area 5 enters the first time, the operator must enter the air shower room 4 before entering the drying room A area 2, the air shower room 4 removes static electricity, moisture and dust on the clothes surface of the operator, and the large influence on the dew point of the drying room A area 2 is avoided; be equipped with access door 8 between dry house A district 2 and the notes liquid room A district 3, the size of access door 8 can allow alone to pass through, avoid greatly influencing dry house A district 2 and annotating the dew point of liquid room A district 3 because of access door 8 space, break down when annotating the equipment in liquid room A district 3, through access door 8 from dry house A district 2 entering annotate liquid room A district 3 in, avoid directly getting into annotating liquid room A district 3 outside the dry house 1, otherwise can produce great influence to annotating the dew point of liquid room A district 3, thereby increase the water content of battery or influence the quality of battery.
The 2 sides in drying room A district are equipped with drying room B district 31, 5 sides in operation equipment district be equipped with annotate liquid room B district 32, air shower 4 be equipped with the air shower room door three 15 leading to drying room B district 31, operation equipment district 5 can be operated annotating the core package in liquid room B district 32, drying room B district 31 and drying room A district 2's structure is the same basically, annotate liquid room B district 32 and annotate liquid room A district 3's structure the same basically. The drying room B area 31 and the drying room A area 2 can work simultaneously or separately, so that the working efficiency of the drying room 1 can be improved, and the service life and the service quality of each area can be prolonged.
Direct fast transfer to pollution-free after electric core package toasts, process in dry house 1 of drying, in this embodiment, to dry house A district 2, the core package in dry house B district 31 carries out the cover and seals, to annotating liquid chamber A district 3, annotate the semi-manufactured goods battery in liquid chamber B district 32 and contain, the manufacturing procedure who seals, dry house 1 has realized the automation of bluetooth headset battery, the continuity production, secondary pollution in the transfer process has been avoided, the production productivity is improved, the dehumidification effect is stable.
The invention provides a manufacturing method of a Bluetooth headset battery, which is characterized in that a core package 106 is placed in a drying room 1 for baking, assembling, impregnating and sealing, so that the problem that the battery absorbs water again in the processing process can be avoided, the time for transferring and storing is reduced, the production efficiency is improved, and the quality of the Bluetooth headset battery is ensured; the manufacturing method is simple, the positive and negative electrode nails are riveted with the positive and negative electrode plates through multiple welding spots, the contact resistance is reduced, the electric breakdown phenomenon under the conditions of high voltage and large current is avoided, the charging odds ratio is improved, the electrolyte improves the quick charging cycle performance of the battery, the conductive coating can reduce the increase of the dynamic internal resistance of the core package, the pressure difference consistency of the battery is improved, and the service life of the battery is prolonged; the prepared Bluetooth earphone battery has good charge and discharge performance, the heat productivity of the positive electrode nail 103 and the negative electrode nail 104 is small, the sealing performance of the battery after sealing is good, leakage is effectively prevented, and the battery also has good explosion-proof performance.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A manufacturing method of a Bluetooth headset battery is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing a core package;
s2: placing the core into a drying room (1) for baking, wherein the drying room (1) comprises a drying room A area (2), a liquid injection chamber A area (3), an air shower chamber (4) and an operation assembly area (5), the dew point of the drying room A area (2) is L1, the dew point of the liquid injection chamber A area (3) is L2, the numerical value of L1 is greater than the numerical value of L2, an oven (7) is embedded in the drying room A area (2), and the oven (7) is of a double-door structure which is communicated with the outside of the drying room (1) and the drying room A area (2);
s3: after the core package (106) is baked in the oven (6), the core package enters the area A (2) of the drying room through the oven (6), and the baked core package (106) and the sealing cover (105) are sleeved in the area A (2) of the drying room;
s4, a transfer box (7) is arranged between the drying room A area (2) and the liquid injection chamber A area (3), a glass wall (51) is arranged between the operation assembly area (5) and the liquid injection chamber A area (3), a plurality of operation gloves (52) are detachably mounted on the glass wall (51), the sleeved core package (106) and the sealing cover (105) enter the liquid injection chamber A area (3) through the transfer box (7), and the operation gloves (52) are used in the operation assembly area (5) to impregnate the sleeved core package (106) and the sealing cover (105) into electrolyte;
and S5, placing the impregnated core bag (106) and the sealing cover (105) in an aluminum shell (107), and sealing by a sealing machine to obtain the Bluetooth headset battery, wherein the sealing machine is arranged in the area A (3) of the injection chamber.
2. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the step S1 includes the following steps:
s11: coating a conductive coating, namely coating conductive slurry on the surfaces of the aluminum foil and the copper foil;
s12: coating, namely coating the positive electrode slurry on an aluminum foil to prepare a positive electrode plate (101), and coating the negative electrode slurry on a copper foil to prepare a negative electrode plate (102);
s13: slicing, namely cutting the positive and negative pole pieces (101), the negative pole piece (102) and the diaphragm (100) into preset sizes;
s14: rivet welding positive and negative nail pins: respectively welding a positive nail (103) and a negative nail (104) on a positive pole piece (101) and a negative pole piece (102);
s15: and winding the rivet-welded positive nail (103), negative nail (104), positive and negative pole pieces (101), negative pole piece (102) and diaphragm (100) together to form a core package (106).
3. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the temperature of the L1 is below-45 ℃, and the temperature of the L2 is below-60 ℃.
4. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the step S5 is followed by the following steps:
s6: the method comprises the steps of applying direct-current voltage to a Bluetooth headset battery, and activating the battery to enable the battery to be charged;
s7: testing and sorting, measuring battery parameters and removing defective products;
s8: and (5) packaging, namely filling the qualified product into a packaging box and packaging.
5. The manufacturing method of the Bluetooth headset battery as claimed in claim 1, wherein the conductive paste is composed of 90-97.2% by mass of NMP and 2.8- ~ 10% by mass of PVDF, carbon black and multi-walled carbon nanotubes, and the weight ratio of the PVDF, the carbon black and the multi-walled carbon nanotubes is 1: 50: 5.
6. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the anode slurry comprises an anode active material, a binder, a conductive agent and a solvent, and the cathode slurry comprises a cathode active material, a binder, a conductive agent and a solvent.
7. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: an access door (8) is arranged between the drying room A area (2) and the liquid injection chamber A area (3).
8. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: the operation gloves (52) nearest to the transfer box (7) can take the core packages in the transfer box (7), every two adjacent operation gloves (52) can hold each other, and the sealing machine is arranged on the side of the glass wall (51).
9. The method for manufacturing a battery of a bluetooth headset according to claim 1, wherein: drying room A district (2) side be equipped with drying room B district (31), operation equipment district (5) side be equipped with annotate liquid room B district (32), wind leaching rooms (4) be equipped with wind leaching rooms door three (15) leading to drying room B district (31), operation equipment district (5) can be operated core package (106) in annotating liquid room B district (32).
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