CN111082158A - Quick-charging button battery and manufacturing method thereof - Google Patents
Quick-charging button battery and manufacturing method thereof Download PDFInfo
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- CN111082158A CN111082158A CN202010061576.4A CN202010061576A CN111082158A CN 111082158 A CN111082158 A CN 111082158A CN 202010061576 A CN202010061576 A CN 202010061576A CN 111082158 A CN111082158 A CN 111082158A
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- insulating rubber
- shell
- electrode shell
- rubber ring
- metal support
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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
-
- 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
-
- 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
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
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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
- 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
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a quick-charging type button battery, which comprises a positive electrode shell, a negative electrode shell, a metal support ring, an electric core and an insulating rubber ring, wherein the insulating rubber ring is arranged at the circumferential edge of the negative electrode shell, the metal support ring is arranged in the positive electrode shell, the electric core is arranged in the metal support ring in a closed space formed by the positive electrode shell, the negative electrode shell and the insulating rubber ring, a pressure reducing bin is also arranged in the insulating rubber ring, the pressure reducing bin is positioned in the insulating rubber ring above the mounting groove of the negative electrode shell, the metal support ring comprises an annular connecting part and an annular supporting part, a plurality of through holes are arranged on the supporting part, the annular connecting part is positioned at the top end of the annular supporting part, and the annular connecting part is contacted with the lower end of the mounting groove of the negative electrode shell. Avoiding the explosion danger.
Description
Technical Field
The invention relates to the technical field of button batteries, and particularly belongs to a quick-charging button battery and a manufacturing method thereof.
Background
The button battery is divided into a rechargeable button battery and a non-rechargeable button battery according to the charging or not, and the rechargeable button battery is mainly a lithium ion battery. The fast-charging button battery mainly comprises a lithium ion battery, but the fast-charging lithium ion battery has the defect of charging and heating, and when the temperature of the battery rises, the volume inside the button battery is increased due to expansion caused by heat and contraction caused by cold, so that the battery can expand. The button cell in the prior art is of a fixed structure, the size of the button cell is not changeable, and when the temperature inside the button cell is high and the pressure inside the button cell is high, the cell is prone to explosion danger.
Disclosure of Invention
The invention aims to provide a quick-charging type button battery and a manufacturing method thereof, which overcome the defects of the prior art and can change the volume of the button battery.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a quick-charging type button battery comprises a positive casing, a negative casing, a metal support ring, an electric core and an insulating rubber ring, wherein the insulating rubber ring is arranged at the circumferential edge of the negative casing, the metal support ring is arranged in the positive casing, the electric core is arranged in a metal support ring in a closed space formed by the positive casing, the negative casing and the insulating rubber ring, a negative casing mounting groove is arranged in the insulating rubber ring, the negative casing mounting groove is Z-shaped, a pressure reduction bin is also arranged in the insulating rubber ring, the pressure reduction bin is positioned in the insulating rubber ring above the negative casing mounting groove, the metal support ring comprises an annular connecting part and an annular supporting part, a plurality of through holes are arranged on the supporting part, the annular connecting part is positioned at the top end of the annular supporting part, and the annular connecting part is contacted with the lower end of the negative casing mounting groove, the outer diameter of the annular connecting part is smaller than that of the annular supporting part, and the outer diameter of the annular supporting part is smaller than the inner diameter of the positive electrode shell.
Further, the top of the negative electrode shell is also provided with a liquid injection hole, and the liquid injection hole is sealed by hot melting.
Furthermore, an air outlet pipe is also arranged in the insulating rubber ring above the pressure reduction bin.
Further, the insulating rubber ring of the below in decompression storehouse in still be equipped with the air duct, the insulating rubber ring of the top in decompression storehouse in still be equipped with the outlet duct, decompression storehouse in be provided with the diaphragm, the diaphragm divide into upper bin body and lower bin body with decompression storehouse, diaphragm and insulating rubber ring structure as an organic whole, the circumference edge of negative pole shell pass the air duct.
Furthermore, the top of the air outlet pipe is also provided with a drum membrane, and the drum membrane and the insulating rubber ring are of an integrated structure.
Further, the circumferential edge of the cathode shell is also provided with air holes, the number of the air holes is equal to that of the air guide tubes, and the air holes correspond to the air guide tubes.
Further, the gas pocket on still bond and have the isolating pad, the isolating pad be located the lower surface at negative pole shell circumference edge, the isolating pad material be PET fragile paper.
The method for preparing the fast-charging button battery comprises the following steps:
installing a metal support ring in the positive electrode shell, and then installing the battery cell in the metal support ring;
electrolyte is filled into the positive electrode shell, and the height of the electrolyte is equal to that of the metal support ring in the positive electrode shell;
bonding the isolation pad on the air hole on the circumferential edge of the negative electrode shell, and then installing the insulating rubber ring on the circumferential edge of the negative electrode shell;
stamping the cathode shell provided with the insulating rubber ring into the anode shell, and performing edge folding operation on the anode shell to enable the edge of the top of the anode shell to contract inwards so as to seal the anode shell, the cathode shell and the insulating rubber ring;
and carrying out hot melting sealing on the liquid injection hole on the negative electrode shell to obtain a button cell product.
Compared with the prior art, the invention has the following implementation effects: when the internal pressure of the button battery is increased, the negative electrode shell can extrude the pressure bin in the insulating rubber ring to move upwards, so that the volume change in the button battery is realized; in addition, the air outlet pipe is arranged above the pressure chamber, the air outlet pipe is arranged below the pressure chamber, and the tympanic membrane is arranged at the top of the air outlet pipe, so that a user of the battery can visually observe the pressure change in the battery, and the danger is avoided in time; the button cell can effectively eliminate the increase of the internal pressure of the button cell, prompt the user of the button cell about the change of the internal pressure of the button cell, and avoid the explosion hazard.
Drawings
Fig. 1 is a partial cross-sectional view of the present invention.
Fig. 2 is an enlarged view at B in fig. 1.
Fig. 3 is a schematic structural diagram of a metal support ring.
Fig. 4 is a partial sectional view of the present invention after modification.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic structural diagram of a modified negative electrode can according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation to be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the fast-charging button cell of the present invention comprises a positive casing 1, a negative casing 2, a metal support ring 4, a battery cell 5 and an insulating rubber ring 3, wherein the insulating rubber ring 3 is installed at a circumferential edge 20 of the negative casing, the metal support ring 4 is installed in the positive casing 1, the battery cell 5 is installed in the metal support ring 4 in a closed space formed by the positive casing 1, the negative casing 2 and the insulating rubber ring 3, a negative casing installation groove is formed in the insulating rubber ring 3, the negative casing installation groove is zigzag, a pressure reduction bin 34 is further arranged in the insulating rubber ring 3, the pressure reduction bin 34 is located inside the insulating rubber ring 3 above the negative casing installation groove, the metal support ring 4 comprises an annular connection portion 40 and an annular support portion 41, a plurality of through holes 42 are formed on the annular support portion 41, the annular connection portion 40 is located at a top end of the annular support portion 41, the annular connection portion 40, the outer diameter of the annular connecting portion 40 is smaller than the outer diameter of the annular supporting portion 41, and the outer diameter of the annular supporting portion 41 is smaller than the inner diameter of the positive electrode case 1.
When the temperature in the button battery is high and the volume expands, the negative shell 2 can move upwards to extrude the decompression bin 34, so that the space in the button battery is increased, and the explosion danger caused by overlarge pressure in the button battery is avoided; when the temperature in the button cell is reduced, the extruded decompression bin 34 is restored, the negative electrode shell 2 moves downwards, and the internal space of the button cell is restored.
In addition, the top of the negative electrode shell 2 is also provided with a liquid injection hole 23, so that when the button cell is assembled, electrolyte is injected into the positive electrode shell 1, and when the positive electrode shell 1 and the negative electrode shell 2 are sealed, the air in the positive electrode shell 1 cannot be discharged, the button cell is not beneficial to sealing operation, and the liquid injection hole 23 is sealed by hot melting after the button cell is manufactured, so that the leakage of the electrolyte is prevented.
As shown in fig. 4, further, in the present invention, an air outlet 33 may be further disposed in the insulating rubber ring 3 above the pressure reduction bin 34, and the air outlet 33 is communicated with the pressure reduction bin 34, so that when the pressure reduction bin 34 is pressed, air in the pressure reduction bin 34 may be exhausted, which is favorable for the upward movement of the negative electrode case 2.
In order to better exert the function of the decompression chamber 34 and prompt a user of the button cell that the pressure inside the cell changes, as shown in fig. 5, the top of the air outlet pipe 33 is further provided with a tympanic membrane 30, the thickness of the tympanic membrane 30 is 0.15mm, the tympanic membrane 30 and the insulating rubber ring 3 are of an integrated structure, the insulating rubber ring 3 below the decompression chamber 34 is further provided with an air guide pipe 32, the insulating rubber ring 3 above the decompression chamber 34 is further provided with an air outlet pipe 33, the decompression chamber 34 is internally provided with a diaphragm 31, the diaphragm 31 divides the decompression chamber 34 into an upper chamber body 36 and a lower chamber body 35, the diaphragm 31 and the insulating rubber ring 3 are of an integrated structure, the circumferential edge 20 of the negative electrode shell passes through the air guide pipe 32, the circumferential edge 20 of the negative electrode shell is further provided with air holes 21, the number of the air holes 21 is equal to. When the pressure inside the battery is large, part of electrolyte solution enters the lower bin body 35 through the air duct 32, the lower bin body 35 extrudes the upper bin body 36, the gas in the upper bin body 36 enters the air outlet pipe 33, and the tympanic membrane 30 expands and swells, so that a worker can visually observe the pressure change inside the button battery.
In addition, in order to avoid the expansion of the tympanic membrane 30 caused by slight pressure change in the button cell, as shown in fig. 6, the invention also adheres an isolation pad 6 on the air hole 21, the isolation pad 6 is positioned on the lower surface of the circumferential edge of the negative electrode shell 2, the isolation pad 6 adopts PET fragile paper, and the crushing pressure of the PET fragile paper is 1kg/cm2When the pressure in the button cell does not exceed 1kg/cm2In this case, the separator 6 is not broken, the negative electrode can 2 only slightly presses the decompression chamber 34, and the tympanic membrane 30 is not significantly expanded.
The quick-charging button battery is prepared by the following steps: installing a metal support ring 4 in the positive electrode shell 1, and then installing a battery cell 5 in the metal support ring 4; then, electrolyte is filled into the positive electrode shell 1, and the height of the electrolyte is equal to that of the metal support ring 4 in the positive electrode shell 1; bonding the spacer 6 to the air holes 21 on the circumferential edge 20 of the negative casing, and then mounting the insulating rubber ring 3 on the circumferential edge 20 of the negative casing; stamping the cathode shell 2 provided with the insulating rubber ring 3 into the anode shell 1, and performing edge folding operation on the anode shell 1 to enable the edge of the top of the anode shell 1 to contract inwards so as to seal the anode shell 1, the cathode shell 2 and the insulating rubber ring 3; and carrying out hot melting sealing on the liquid injection hole 23 on the negative electrode shell 2 to obtain the button cell product.
In addition, the battery cell 5 of the present invention is a battery cell in the prior art, the battery cell 5 is wound into a core, and the positive electrode tab and the negative electrode tab are respectively located at the top end and the bottom end of the battery cell.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a fill type button cell soon, includes positive pole casing, negative pole casing, metal support ring, electric core and insulating rubber circle, insulating rubber circle install in the circumference edge of negative pole casing, metal support ring install in positive pole casing, electric core install in the metal support ring in the airtight space that positive pole casing, negative pole casing and insulating rubber circle formed, its characterized in that: insulating rubber circle in be equipped with the negative pole casing mounting groove, the negative pole casing mounting groove be the zigzag, insulating rubber circle in still be equipped with the storehouse of reducing pressure, the storehouse of reducing pressure be located the inside of the insulating rubber circle of negative pole casing mounting groove top, metal support ring include annular connecting portion and annular supporting part, the supporting part on be equipped with a plurality of through-hole, annular connecting portion be located the top of annular supporting part, the lower extreme contact of annular connecting portion and negative pole casing mounting groove, the external diameter of annular connecting portion be less than the external diameter of annular supporting part, the external diameter of annular supporting part be less than the internal diameter of positive polar shell.
2. A fast-charging type button cell according to claim 1, characterized in that: the top of the negative electrode shell is also provided with a liquid injection hole, and the liquid injection hole is sealed by hot melting.
3. A fast-charging type button cell according to claim 1, characterized in that: and an air outlet pipe is also arranged in the insulating rubber ring above the pressure reduction bin.
4. A fast-charging type button cell according to claim 1, characterized in that: the improved negative electrode shell structure is characterized in that an air guide pipe is further arranged in the insulating rubber ring below the pressure reduction bin, an air outlet pipe is further arranged in the insulating rubber ring above the pressure reduction bin, a diaphragm is arranged in the pressure reduction bin and divides the pressure reduction bin into an upper bin body and a lower bin body, the diaphragm and the insulating rubber ring are of an integrated structure, and the circumferential edge of the negative electrode shell penetrates through the air guide pipe.
5. A fast-charging button cell according to claim 4, characterized in that: the top of the air outlet pipe is also provided with a drum membrane, and the drum membrane and the insulating rubber ring are of an integral structure.
6. A fast-charging button cell according to claim 4, characterized in that: the cathode shell is characterized in that air holes are further formed in the circumferential edge of the cathode shell, the number of the air holes is equal to that of the air guide tubes, and the air holes correspond to the air guide tubes.
7. A fast-charging button cell according to claim 6, characterized in that: the gas pocket on still bond and have the isolation pad, the isolation pad be located the lower surface at negative pole shell circumference edge, the isolation pad material be PET easy shredded paper.
8. Method for the preparation of a fast-charging button cell according to any of claims 1 to 7, characterized in that: comprises the following steps of (a) carrying out,
installing a metal support ring in the positive electrode shell, and then installing the battery cell in the metal support ring;
electrolyte is filled into the positive electrode shell, and the height of the electrolyte is equal to that of the metal support ring in the positive electrode shell;
bonding the isolation pad on the air hole on the circumferential edge of the negative electrode shell, and then installing the insulating rubber ring on the circumferential edge of the negative electrode shell;
stamping the cathode shell provided with the insulating rubber ring into the anode shell, and performing edge folding operation on the anode shell to enable the edge of the top of the anode shell to contract inwards so as to seal the anode shell, the cathode shell and the insulating rubber ring;
and carrying out hot melting sealing on the liquid injection hole on the negative electrode shell to obtain a button cell product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061576.4A CN111082158B (en) | 2020-01-19 | 2020-01-19 | Quick-charging button battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061576.4A CN111082158B (en) | 2020-01-19 | 2020-01-19 | Quick-charging button battery and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111082158A true CN111082158A (en) | 2020-04-28 |
| CN111082158B CN111082158B (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010061576.4A Active CN111082158B (en) | 2020-01-19 | 2020-01-19 | Quick-charging button battery and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382825A (en) * | 2020-11-11 | 2021-02-19 | 路华置富电子(深圳)有限公司 | Button cell with explosion-proof structure |
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| JPH08287891A (en) * | 1995-04-18 | 1996-11-01 | Fuji Elelctrochem Co Ltd | Flat battery |
| JP2003068254A (en) * | 2001-08-28 | 2003-03-07 | Toshiba Battery Co Ltd | Button-type battery |
| JP2011146315A (en) * | 2010-01-18 | 2011-07-28 | Panasonic Corp | Flat electrochemical element |
| US20120244409A1 (en) * | 2010-09-21 | 2012-09-27 | Victoria Link Limited | Battery safety systems, methods and compositions |
| US20140295254A1 (en) * | 2011-11-30 | 2014-10-02 | Bin Liu | Mercury-free lead-free button battery |
| CN204614825U (en) * | 2015-06-05 | 2015-09-02 | 田艺儿 | The button cell of the heat radiating type of anti-leak |
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| CN208208832U (en) * | 2018-06-01 | 2018-12-07 | 力源电池科技（深圳）有限公司 | Rechargeable type button cell |
| CN109037510A (en) * | 2018-10-09 | 2018-12-18 | 力源电池科技（深圳）有限公司 | Button cell |
| CN208352408U (en) * | 2018-03-30 | 2019-01-08 | 昆山兴能能源科技有限公司 | A kind of circular safety pressure release button cell |
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2020
- 2020-01-19 CN CN202010061576.4A patent/CN111082158B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08287891A (en) * | 1995-04-18 | 1996-11-01 | Fuji Elelctrochem Co Ltd | Flat battery |
| JP2003068254A (en) * | 2001-08-28 | 2003-03-07 | Toshiba Battery Co Ltd | Button-type battery |
| JP2011146315A (en) * | 2010-01-18 | 2011-07-28 | Panasonic Corp | Flat electrochemical element |
| US20120244409A1 (en) * | 2010-09-21 | 2012-09-27 | Victoria Link Limited | Battery safety systems, methods and compositions |
| US20140295254A1 (en) * | 2011-11-30 | 2014-10-02 | Bin Liu | Mercury-free lead-free button battery |
| CN204614825U (en) * | 2015-06-05 | 2015-09-02 | 田艺儿 | The button cell of the heat radiating type of anti-leak |
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| CN208352408U (en) * | 2018-03-30 | 2019-01-08 | 昆山兴能能源科技有限公司 | A kind of circular safety pressure release button cell |
| CN208208832U (en) * | 2018-06-01 | 2018-12-07 | 力源电池科技（深圳）有限公司 | Rechargeable type button cell |
| CN109037510A (en) * | 2018-10-09 | 2018-12-18 | 力源电池科技（深圳）有限公司 | Button cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382825A (en) * | 2020-11-11 | 2021-02-19 | 路华置富电子(深圳)有限公司 | Button cell with explosion-proof structure |
| WO2022100050A1 (en) * | 2020-11-11 | 2022-05-19 | 路华置富电子(深圳)有限公司 | Button battery with explosion-proof structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111082158B (en) | 2023-03-03 |
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