CN109755421A - Button cell and button cell closing lid method - Google Patents
Button cell and button cell closing lid method Download PDFInfo
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- CN109755421A CN109755421A CN201910186667.8A CN201910186667A CN109755421A CN 109755421 A CN109755421 A CN 109755421A CN 201910186667 A CN201910186667 A CN 201910186667A CN 109755421 A CN109755421 A CN 109755421A
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- Prior art keywords
- shell
- polar cap
- button cell
- insulating cement
- battery
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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
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses button cell and button cell closing lid methods, are related to button cell field.The button cell includes battery, upper polar cap, insulating cement, lower polar cap and shell.Wherein, upper polar cap is connected to one end of shell by the insulating cement that hot melt is formed.Lower polar cap is installed on the other end of shell.Battery is set to interior of shell, and one end of battery is connected to polar cap, and the other end is connected to lower polar cap.Button cell closing lid method provided by the invention, for processing the button cell.Button cell and button cell closing lid method provided by the invention can improve the sealing performance of button cell, improve the situation of button cell leakage and short circuit.
Description
Technical field
The present invention relates to button cell technical fields, in particular to button cell and button cell closing lid method.
Background technique
Button lithium battery is widely used in the various aspects of life, especially computer main board, wrist-watch, calculator, bluetooth ear
In the Related products such as machine, toy radio phone and field, with the development of technology, current button lithium battery cathode is negative using graphite
Pole, inside use stepped construction, it is already possible to realize that the multiple charge and discharge of button cell use.
But conventional button secondary lithium battery shell uses steel shell, one circle insulating cement of inner casing outer ring package, closing lid
When, battery case, which is received, using mold is pressed against interior outskirt deformation, fastens insulating cement, achieve the effect that sealing.But
Aforesaid operations, due to sealing using physical deformation, mold can be squeezed and deformed in the long-term use process, is damaged, in turn
Cause battery closing lid leakproofness poor, the bad phenomenons such as battery leakage, short circuit.
Summary of the invention
The purpose of the present invention is to provide a kind of button cells, can improve the sealing performance of button cell, improve button
The situation of battery leakage and short circuit.
The present invention provides a kind of technical solution:
A kind of button cell, including battery, upper polar cap, insulating cement, lower polar cap and shell.
The upper polar cap is connected to one end of the shell by the insulating cement that hot melt is formed.
The lower polar cap is installed on the other end of the shell.
The battery is set to the interior of shell, and one end of the battery is connected to polar cap, the other end
It is connected to the lower polar cap.
Further, the insulating cement is wrapped in the outer rim of the upper polar cap.
The insulating cement is wrapped in the end of the shell.
Further, the insulating cement is set around the outer rim of the insulating cement, and the shell is set around the insulating cement
Outer ring.
Further, the lower polar cap is welded in the end face of the shell.
Further, peripheral wall of the shell close to described insulating cement one end curves inwardly arc-shaped.
Compared with prior art, the beneficial effect of button cell provided by the invention is:
Originally integrally formed shell and bottom cover have been split into shell and lower polar cap two by button cell provided by the invention
Part, and be mutually connected between shell, insulating cement and upper polar cap using the insulation glue connection by upper polar cap by hot melt
It connects in one end of shell, wherein polar cap and shell in the insulation glue connection for passing through hot melt, can make insulating cement be securely attached to
On upper polar cap and shell, the sealing performance between polar cap, insulating cement and shell can be improved, avoids the feelings of battery leakage and short circuit
Condition occurs, and improves the service life of button cell, that is, can solve shell caused by die deformation or burn failure, insulating cement
Poorly sealed situation between upper polar cap.
Another object of the present invention is to provide a kind of button cell closing lid methods, can improve the leakproofness of button cell
Can, improve the situation of button cell leakage and short circuit.
The present invention provides a kind of technical solution:
A kind of button cell closing lid method, for processing button cell, the button cell include battery, upper polar cap,
Insulating cement, lower polar cap and shell.
The upper polar cap is connected to one end of the shell by the insulating cement that hot melt is formed.
The lower polar cap is installed on the other end of the shell.
The battery is set to the interior of shell, and one end of the battery is connected to polar cap, the other end
It is connected to the lower polar cap.
The described method includes:
Upper polar cap and the shell described in the insulation glue connection by hot melt are integrated.
The battery is put into shell and one end of the battery is welded in the upper polar cap.
The other end of the battery is welded in the lower polar cap.
Electrolyte is injected in the shell.
The lower polar cap is welded in the other end of the shell.
Further, upper polar cap and the shell described in the insulation glue connection by hot melt are integrated step and include:
The insulating cement is wrapped in the outer rim of the upper polar cap.
The outer rim of the outer casing end is sheathed on to the outer ring of the insulating cement.
The insulating cement is heated, so that the upper polar cap, the insulating cement and shell hot melt are
One.
Further, the outer rim by the outer casing end is sheathed on the outer ring step of the insulating cement and includes:
The peripheral wall of the outer casing end is bent inwards, and keeps the outer casing end peripheral wall bending arc-shaped.
The end sleeve of the outer case bending is set to the insulating cement outer ring.
Further, the other end step that the lower polar cap is welded in the shell includes:
The lower polar cap is welded in the end face of the shell.
Further, described that the lower polar cap is welded in the other end step of the shell, pass through laser welding
The lower polar cap is welded in the end of the shell by mode.
Compared with prior art, the beneficial effect of button cell closing lid method provided by the invention and the button of above-mentioned offer electricity
The beneficial effect of pond compared with the existing technology is identical, and details are not described herein.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range.It for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the perspective view of the explosion for the button cell that the embodiment of the present invention provides；
Fig. 2 is the button cell structural schematic diagram that the embodiment of the present invention provides；
Fig. 3 is the flow chart for the button cell closing lid method that the embodiment of the present invention provides；
Fig. 4 is the flow chart for the button cell closing lid method part that the embodiment of the present invention provides；
Fig. 5 is the flow chart for the button cell closing lid method part that the embodiment of the present invention provides.
Icon: 10- button cell；The upper polar cap of 100-；200- shell；300- insulating cement；Polar cap under 400-；500- battery
Core.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is to be understood that, term " on ", "lower", "inner", "outside", "left", "right" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship or the orientation or positional relationship that usually understands of those skilled in the art, be merely for convenience of retouching
It states the present invention and simplifies description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, " setting ", " even
Connect " etc. terms shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
With reference to the accompanying drawing, detailed description of the preferred embodiments.
Embodiment
Referring to Fig. 1, providing a kind of button cell 10 in the present embodiment, the leakproofness of button cell 10 can be improved
Can, improve the situation of 10 leakage of button cell in the prior art and short circuit.
Fig. 1 and Fig. 2 are please referred to, in the present embodiment, button cell 10 includes upper polar cap 100, insulating cement 300, outer
Shell 200, lower polar cap 400 and battery 500.Wherein, upper polar cap 100, insulating cement 300, shell 200 and lower polar cap 400 mutually interconnect
The shell to form battery 500 is connect, and can be used to accommodate electrolyte, to form complete battery.
It should be noted that in the present embodiment, upper polar cap 100 and lower polar cap 400 are plectane, and shell 200 is cylinder,
Insulating cement 300 is in a ring.
Upper polar cap 100 is connected to one end of shell 200 by the insulating cement 300 that hot melt is formed.That is, in the present embodiment,
Upper polar cap 100 and shell 200 are connected by the insulating cement 300 of hot melt.
It should be noted that in the prior art, button cell 10 realized by the way of mold extruding upper polar cap 100,
Installation between insulating cement 300 and shell 200, and then realize that the pressure holding of shell 200 is wrapped up in insulating cement 300 and insulating cement 300
The closing lid of button cell 10 is realized in the mode of upper polar cap 100.However, there are still button cells 10 to seal not in the prior art
Sternly lead to the situation of leakage or short circuit.
In the present embodiment, upper polar cap 100 and shell 200 are connected by the insulating cement of hot melt 300, it can be soft by heating
The insulating cement 300 of change is coated on polar cap 100 and shell 200, and the insulating cement 300 heated can be sticked to 100 He of polar cap
200 surface of shell, can improve the sealing performance between insulating cement 300 and upper polar cap 100 and shell 200.And then avoid mould
Upper poorly sealed situation between polar cap 100, insulating cement 300 and shell 200, can improve button caused by tool damage or deformation
The situation of 10 leakage of formula battery and short circuit.
Further, in the present embodiment, insulating cement 300 is set around the outer rim of polar cap 100, i.e., insulating cement 300 is interior
Circle is wound around on the outer ring of polar cap 100.In addition, shell 200 is set around the outer ring of insulating cement 300, i.e., the inner ring of shell 200 around
It is located on the outer ring of insulating cement 300.Shell 200 and upper polar cap 100 can be made to the clamping action of insulating cement 300, and then limited
The movement of insulating cement 300 processed can be further ensured that sealing performance stable between polar cap 100, insulating cement 300 and shell 200.
It should be noted that in other embodiments, upper polar cap 100 and shell 200 can also be separately positioned on insulating cement
Both ends in 300 axial directions, i.e. insulating cement 300 are connected on the end face of shell 200, and insulating cement 300 is connected to polar cap 100
One of side.Alternatively, the inner ring of insulating cement 300 is set around the outer ring of polar cap 100, while insulating cement 300 is connected to
On the end face of shell 200 etc..
In addition, in the present embodiment, insulating cement 300 is wrapped in the outer rim of polar cap 100, so that can guarantee insulating cement
Connective stability between 300 and upper polar cap 100.Meanwhile in the present embodiment, insulating cement 300 is wrapped in the end of shell 200
Portion, to guarantee the connective stability between insulating cement 300 and shell 200.That is, in the present embodiment, when insulating cement 300 melt it is soft
When change, the insulating cement 300 of softening is wrapped in the outer rim of polar cap 100 and is wrapped in the outer rim of 200 end of shell, Jin Erti simultaneously
The sealing performance that the upward polar cap 100 of high insulating cement 300 and shell 200 provide, polar cap 100, insulating cement 300 and shell in guarantee
Sealing stability between 200.
Lower polar cap 400 is installed on the other end of shell 200, so that can pass through the another of lower 400 sealing shell 200 of polar cap
End, so that the environment of sealing is collectively formed in lower polar cap 400, upper polar cap 100, insulating cement 300 and shell 200, by close
The environment set battery core 500 of envelope.Specifically, in the present embodiment, lower polar cap 400 is welded in the end face of 200 other end of shell,
The end face of the one end for descending polar cap 400 to be welded on shell 200 far from upper polar cap 100.Shell 200 is realized by welding
Sealing between lower polar cap 400 equally can guarantee sealing performance stable between lower polar cap 400 and shell 200, and then avoid
The leakage and short circuit of button cell 10.
It should be noted that in the present embodiment, lower polar cap 400 is welded on the end of shell 200 by way of Laser Welding
Face.By way of Laser Welding, it can guarantee the sealing stability between shell 200 and lower polar cap 400, avoid button cell 10
Leakage and short circuit.
It should be appreciated that in other embodiments, can also realize in other way lower polar cap 400 and shell 200 it
Between installation, for example, the bonding for passing through glue.
In addition, in the present embodiment, peripheral wall of the shell 200 close to 300 one end of insulating cement curve inwardly it is arc-shaped, in order to
Insulating cement 300 can be wrapped in the outer rim of 200 end of shell when softening, and then improve the sealing between shell 200 and insulating cement 300
Stability.It should be noted that in other embodiments, the inside bending in 200 end of shell can also be cancelled.
Battery 500 is set to inside shell 200, and the both ends of battery 500 are connected to polar cap 100 under
Polar cap 400.In addition, being also used to fill electrolyte inside shell 200, and pass through upper polar cap 100, lower polar cap 400 and insulating cement 300
Sealing is provided, to avoid 10 leakage of button cell and short circuit.
Originally integrally formed shell 200 and bottom cover can have been split into shell by the button cell 10 provided in the present embodiment
200 and lower 400 two parts of polar cap, and be mutually connected between shell 200, insulating cement 300 and upper polar cap 100 using will
Upper polar cap 100 is connected to one end of shell 200 by the insulating cement 300 of hot melt, wherein in the connection of insulating cement 300 for passing through hot melt
Polar cap 100 and shell 200, can make insulating cement 300 be securely attached on polar cap 100 and shell 200, can improve polar cap
100, the sealing performance between insulating cement 300 and shell 200 avoids battery leakage or the situation of short circuit from occurring, improves button
The service life of formula battery 10 can solve shell 200, insulating cement 300 caused by die deformation or burn failure and upper pole
Poorly sealed situation between lid 100.
Fig. 1 and Fig. 3 are please referred to, a kind of button cell closing lid method is additionally provided in the present embodiment, this method is used for
Above-mentioned button cell 10 is processed, and the sealing performance of button cell 10 can be improved, improves the feelings of 10 leakage of button cell and short circuit
Condition.
Wherein, this method comprises:
Step S100, upper polar cap 100 is connected by the insulating cement of hot melt 300 and shell 200 is integrated.
It should be noted that being connected as one upper polar cap 100 and shell 200 by the insulating cement 300 of hot melt, can guarantee
Being completely embedded property between upper polar cap 100, insulating cement 300 and shell 200, and then can guarantee polar cap 100,300 and of insulating cement
Stable sealing performance between shell 200.
Further, referring to Fig. 4, step S100 includes:
Step S101, insulating cement 300 is wrapped in the outer rim of upper polar cap 100.
Step S102,200 end of shell is arranged to the outer ring of insulating cement 300.
It should be noted that referring to Fig. 5, step S102 further include:
Step S1021, the peripheral wall of 200 end of shell is bent inwards, and makes the bending of 200 end peripheral wall of shell in arc
Shape.
The end of shell 200 is bent inwards arc-shaped, so that being wrapped when insulating cement 300 softens convenient for insulating cement 300
It is wrapped in the outer rim of shell 200, and then improves the sealing performance for button cell 10.
It should be noted that in other embodiments can also be with the technique of cancellation step S1021.
Step S1022, the end that shell 200 is bent is arranged to the outer ring of insulating cement 300.
Step S103, insulating cement 300 is heated, so that 200 heat of upper polar cap 100, insulating cement 300 and shell
It fuses into one.
It should be noted that provided herein heat to insulating cement 300 can be simultaneously to upper polar cap 100 and outer
Shell 200 is heated simultaneously, and the temperature that need to only meet heat treatment can make insulating cement 300 soften, but cannot make simultaneously
Polar cap 100 and shell 200 soften.
In addition, sequence also can be interchanged between step S101 and step S102.
Please continue to refer to Fig. 3, battery 500 step S200, is put into shell 200 and welds one end of battery 500
In upper polar cap 100.
Step S300, the other end of battery 500 is welded in lower polar cap 400.
Step S400, electrolyte is injected in shell 200.
It should be noted that by the way that first the both ends of battery 500 are respectively welded in upper polar cap 100 and lower polar cap 400, so
It is injected the electrolyte into shell 200 again afterwards.It can be by first completing the weld job of battery 500, then carry out electrolyte
Injection operation, the production efficiency of button cell 10 can be improved, avoid repetitive operation.
Step S500, lower polar cap 400 is welded in the other end of shell 200.
It should be noted that in the present embodiment, by the welding of lower polar cap 400 and shell 200 by way of laser welding
End.Specifically, lower polar cap 400 is welded on the end face of shell 200, in order to the weldering of lower polar cap 400 and shell 200
It connects, while the sealing performance between lower polar cap 400 and shell 200 can be improved.
In addition, button cell in button cell and 200 use the present embodiment that inventor processes 200 prior arts
The button cell 10 of closing lid method processing carries out the comparison of battery leakage or short-circuit quantity as benchmark.Wherein, 200 it is existing
In the button cell 10 of technology processing, there are 2 the case where leakage occur, and has 1 situation for short circuit occur, i.e. disqualification rate
Reach 1.5%.And in 200 the present embodiment button cell closing lid method process button cell 10 in, do not occur leakage and
The situation of short circuit, disqualification rate 0.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of button cell, which is characterized in that including battery, upper polar cap, insulating cement, lower polar cap and shell；
The upper polar cap is connected to one end of the shell by the insulating cement that hot melt is formed；
The lower polar cap is installed on the other end of the shell；
The battery is set to the interior of shell, and one end of the battery is connected to the upper polar cap, the other end
It is connected to the lower polar cap.
2. button cell according to claim 1, which is characterized in that the insulating cement is wrapped in the outer rim of the upper polar cap
And the end of the shell.
3. button cell according to claim 1, which is characterized in that the insulating cement is set around the outer of the insulating cement
Edge, the shell are set around the outer ring of the insulating cement.
4. button cell described in any one of -3 according to claim 1, which is characterized in that the lower polar cap is welded in described
The end face of shell.
5. button cell described in any one of -3 according to claim 1, which is characterized in that the shell is close to the insulation
The peripheral wall of glue one end curves inwardly arc-shaped.
6. a kind of button cell closing lid method, which is characterized in that for processing the button as described in claim 1-5 any one
Battery, which comprises
Upper polar cap and the shell described in the insulation glue connection by hot melt are integrated；
The battery is put into shell and one end of the battery is welded in the upper polar cap；
The other end of the battery is welded in the lower polar cap；
Electrolyte is injected in the shell；
The lower polar cap is welded in the other end of the shell.
7. button cell closing lid method according to claim 6, which is characterized in that the insulating cement by hot melt
It connects the upper polar cap and the shell is integrated step and includes:
The insulating cement is wrapped in the outer rim of the upper polar cap；
The outer casing end is sheathed on to the outer ring of the insulating cement；
The insulating cement is heated, so that the upper polar cap, the insulating cement and shell hot melt are integrated.
8. button cell closing lid method according to claim 7, which is characterized in that the outer rim by the outer casing end
The outer ring step for being sheathed on the insulating cement includes:
The peripheral wall of the outer casing end is bent inwards, and keeps the outer casing end peripheral wall bending arc-shaped；
The end sleeve of the outer case bending is set to the insulating cement outer ring.
9. button cell closing lid method according to claim 6, which is characterized in that described that the lower polar cap is welded in institute
The other end step for stating shell includes:
The lower polar cap is welded in the end face of the shell.
10. button cell closing lid method according to claim 6, which is characterized in that described to be welded in the lower polar cap
In the other end step of the shell, the lower polar cap is welded in the end of the shell by way of laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186667.8A CN109755421A (en) | 2019-03-12 | 2019-03-12 | Button cell and button cell closing lid method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186667.8A CN109755421A (en) | 2019-03-12 | 2019-03-12 | Button cell and button cell closing lid method |
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| CN109755421A true CN109755421A (en) | 2019-05-14 |
Family
ID=66408411
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910186667.8A Pending CN109755421A (en) | 2019-03-12 | 2019-03-12 | Button cell and button cell closing lid method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111048304A (en) * | 2019-12-31 | 2020-04-21 | 西安西电电力电容器有限责任公司 | Cylindrical capacitor and electrode structure for same |
| CN111092253A (en) * | 2020-01-11 | 2020-05-01 | 连云港德立信电子科技有限公司 | Sealing method of button cell |
| CN111477791A (en) * | 2020-03-31 | 2020-07-31 | 惠州市恒泰科技股份有限公司 | Button cell |
| CN112751116A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Explosion-proof packaging structure, button battery and packaging method thereof |
| CN112751115A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Novel packaging structure, button battery and packaging method thereof |
| CN115020935A (en) * | 2022-07-04 | 2022-09-06 | 朱经纬 | Button cell, preparation method thereof and cell system |
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| CN111048304A (en) * | 2019-12-31 | 2020-04-21 | 西安西电电力电容器有限责任公司 | Cylindrical capacitor and electrode structure for same |
| CN111048304B (en) * | 2019-12-31 | 2022-02-01 | 西安西电电力电容器有限责任公司 | Cylindrical capacitor and electrode structure for same |
| CN111092253A (en) * | 2020-01-11 | 2020-05-01 | 连云港德立信电子科技有限公司 | Sealing method of button cell |
| CN111477791A (en) * | 2020-03-31 | 2020-07-31 | 惠州市恒泰科技股份有限公司 | Button cell |
| CN112751116A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Explosion-proof packaging structure, button battery and packaging method thereof |
| CN112751115A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Novel packaging structure, button battery and packaging method thereof |
| CN115020935A (en) * | 2022-07-04 | 2022-09-06 | 朱经纬 | Button cell, preparation method thereof and cell system |
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Application publication date: 20190514 |