CN108232051A - Button cell - Google Patents
Button cell Download PDFInfo
- Publication number
- CN108232051A CN108232051A CN201711354032.1A CN201711354032A CN108232051A CN 108232051 A CN108232051 A CN 108232051A CN 201711354032 A CN201711354032 A CN 201711354032A CN 108232051 A CN108232051 A CN 108232051A
- Authority
- CN
- China
- Prior art keywords
- button cell
- edge
- head cover
- housing
- electric conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims description 25
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M50/153—Lids or covers characterised by their shape for button or coin cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of button cells, its electrode isolation component for including housing and being set in the housing, the electrode isolation component includes at least one anode and at least one cathode, the housing, which includes top, has the lower casing of opening and matched head cover, the head cover includes bottom wall and flips up the folding portion formed by the periphery of the bottom wall, and the edge of the folding portion and the edge of opening of the lower casing are sealingly joined together.The button cell is by flipping up to form folding portion the periphery of head cover, and in this way when the edge of opening of the edge of folding portion and lower casing carries out solder bond, pad and electrode isolation body are staggered a distance, so as to avoid temperature is excessively high from destroying electrode isolation body.
Description
Technical field
The present invention relates to a kind of battery, more specifically to a kind of button cell.
Background technology
The structure of the button cell of the relevant technologies generally includes the housing being made of two conductive case halfs, this two
A case half is respectively lower casing and head cover, and usual lower casing has positive polarity, and head cover has negative polarity.However in the relevant technologies
Button cell easily destroys the electrode isolation body inside housing in lower casing and head cover solder bond because welding temperature is excessively high.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of improved button
Battery.
The technical solution adopted by the present invention to solve the technical problems is：Construct a kind of button cell, including housing with
And the electrode isolation component in the housing is set to, the electrode isolation component includes at least one anode and at least one negative
Pole；The housing, which includes top, has the lower casing of opening and matched head cover；The head cover includes bottom wall and by this
The periphery of bottom wall flips up the folding portion to be formed, and the edge of the folding portion is hermetically combined with the edge of opening of the lower casing
Together.
In some embodiments, the edge of opening of the edge of the folding portion and the lower casing is by way of laser welding
It is sealingly joined together.
In some embodiments, the folding portion includes being centered around the cylindrical sidewall of the bottom wall periphery and be centered around
The outwardly directed flanging of the side wall periphery, the edge of the flanging and the edge of opening of the lower casing are sealingly bonded to one
It rises.
In some embodiments, the electrode isolation body uses the form of helix windings, the axis of the electrode isolation body
Line is overlapped with the central axes of the housing.
In some embodiments, liquid injection hole is offered on the housing, for injecting electrolyte into housing.
In some embodiments, the head cover is made of conductive material, the head cover and at least one anode
It is electrically connected at least one cathode alternative one；The head cover includes at least one fairlead, described at least one to draw
Electric conductor is equipped in portalling, be provided between the hole wall and the electric conductor of at least one fairlead for the head cover
Both the insulating seal of insulation, the electric conductor and at least one anode and at least one cathode it is another electrically
Connection.
In some embodiments, the anode is electrically connected with the head cover, and the cathode electrically connects with the electric conductor
It connects.
In some embodiments, the insulating seal is hermetically filled in the fairlead, the electric conductor longitudinal direction
It is arranged in the insulating seal, and its both ends is exposed respectively from the both ends of the insulating seal.
In some embodiments, the electric conductor is connect in rigidity including larger-size head and with the head
Bar portion, the head is located at the top of the insulating seal, and the bar portion is then longitudinally interspersed in the insulating seal,
So that the head exposure is in the outside of the housing.
In some embodiments, the top surface of the electric conductor is flushed with the top surface of the folding portion.
Implement the present invention at least to have the advantages that：The button cell to be formed by the way that the periphery of head cover is flipped up
Folding portion, in this way when the edge of opening of the edge of folding portion and lower casing carries out solder bond, pad is wrong with electrode isolation body
A distance is opened, so as to avoid temperature is excessively high from destroying electrode isolation body.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the longitudinal profile structure schematic of the button cell in some embodiments of the invention.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that make to understand more the disclosure
Add thorough and comprehensive.
The orientation of the instructions such as " on ", " under ", " bottom ", " top " or position relationship are based on attached drawing it should be noted that term
Shown orientation or position relationship or the invention product using when the orientation usually put or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term as used herein is " perpendicular
Directly ", for illustrative purposes only, it is unique embodiment to be not offered as " level " and similar statement.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or one
Body connects；Can be mechanical connection or electrical connection；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more
The arbitrary and all combination of relevant Listed Items.
Fig. 1 shows the button cell in some embodiments of the invention, which includes the housing 1 and electricity of sealing
Pole barrier assembly 2.Housing 1, which includes top, has the lower casing 11 of opening and matched head cover 12, and head cover 12 includes bottom wall
121 and the folding portion 122 formed is flipped up by the periphery of the bottom wall 121, the edge of folding portion 122 and the opening edge of lower casing 11
Edge is sealingly joined together.Electrode isolation component 2 is set in the housing 1, including at least one anode 21 and at least one
A cathode 22 and the slider 23 between anode 21 and cathode 22.
Housing 1 may include flat bottom region and flat top region parallel with it in some embodiments.Lower casing 11
Can be the cylindric lower casing that top tape has opening in some embodiments.Folding portion 122 may include enclosing in some embodiments
It is wound on the cylindrical lateral wall 1221 straight up of 121 periphery of bottom wall and is centered around 1221 periphery of side wall horizontally outward
The flanging 1222 of stretching.In some embodiments, the edge of flanging 1222 and the edge of opening of lower casing 11 pass through laser welding
Mode is sealingly joined together, and pad 13 is as shown in Figure 1.It is to be appreciated that the button cell is by the side of head cover 12
When the edge of opening of edge and lower casing 11 carries out solder bond, by the way that the periphery of head cover 12 to be flipped up to the folding portion 122 to be formed,
Pad 13 and electrode isolation body 2 is made to be staggered a distance, so as to avoid temperature is excessively high from destroying electrode isolation body 2.
Again as shown in Figure 1, being further opened with a fairlead 123 on head cover 12.The button cell further includes insulating seal 3
And electric conductor 4.4 longitudinal direction of electric conductor is arranged in insulating seal 3, and its both ends is revealed respectively from the both ends of insulating seal 3
Go out.Insulating seal 3 is hermetically filled in fairlead 123, and electric conductor 4 and 12 phase of head cover are insulated.Electrode isolation body 2 is just
Pole 21 is electrically connected with head cover 12, and cathode 22 is electrically connected with electric conductor 4.It is to be appreciated that in some embodiments, it is also possible to
It is that cathode 22 is electrically connected with head cover 12, anode 21 is electrically connected with electric conductor 4, and the quantity of the fairlead 123 is also not limited to
One, two or more can also be applied.In some embodiments, can also be opened up on head cover 12 there are one liquid injection hole (not
Diagram), for injecting electrolyte into housing 1.The button cell may also include closeouts (not shown), for being completed in fluid injection
Later, which is blocked.
The form of helix windings can be used in electrode isolation component 2, can also use the form of lamination.Reality shown in Fig. 1
It applies in example, electrode isolation component 2 is the form of helix windings, and its central axes is overlapped with the central axes of housing 1.Insulating seal
3 can be used insulating cement, ceramics add overlay film or glass that the materials such as overlay film is added to be made.Electric conductor 4 can be used in some embodiments
Rigid conductive material is made, and to enhance crushing resistance, shape can be elongated, T-shaped or drum etc..Reality shown in Fig. 1
Apply that electric conductor 4 in example is T-shaped, larger-size head is located at the top of insulating seal 3, and bar portion is then longitudinally interspersed in absolutely
In edge seal 3 so that the head exposure is in the outside of housing 1.It is to be appreciated that electric conductor 4 is not limited to using rigidity
Material is made, and can also be made in some occasions of flexible material, conductive in this way when needing to install the occasion of protection board
Body 4 can be directly connected to protection board or load, not need to extra soldered conducting wire.
It should be understood that above example only expresses the preferred embodiment of the present invention, description is more specific and detailed
Carefully, but can not the limitation to the scope of the claims of the present invention therefore be interpreted as；It should be pointed out that the common skill for this field
For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also done
Go out several modifications and improvements, these belong to protection scope of the present invention；Therefore, it is all to be done with scope of the invention as claimed
Equivalents and modification, should all belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of button cell, including housing and the electrode isolation component being set in the housing, the electrode isolation component
Including at least one anode and at least one cathode；The housing, which includes top, has the lower casing of opening and matched top
Lid；It is characterized in that, the head cover includes bottom wall and flips up the folding portion formed, the fold by the periphery of the bottom wall
The edge in portion and the edge of opening of the lower casing are sealingly joined together.
2. button cell according to claim 1, which is characterized in that the opening at the edge of the folding portion and the lower casing
Edge is sealingly joined together by way of laser welding.
3. button cell according to claim 1, which is characterized in that the folding portion includes being centered around the bottom wall periphery
Cylindrical sidewall and be centered around the outwardly directed flanging of the side wall periphery, the edge of the flanging is opened with the lower casing
Mouth edge seal it is combined together.
4. button cell according to claim 1, which is characterized in that the electrode isolation body uses the shape of helix windings
Formula, the central axes of the electrode isolation body are overlapped with the central axes of the housing.
5. button cell according to claim 1, which is characterized in that liquid injection hole is offered on the housing, for past shell
Electrolyte is injected in body.
6. according to the button cell described in claim 1-5, which is characterized in that the head cover is made of conductive material, institute
Head cover is stated to be electrically connected at least one anode and at least one cathode alternative one；The head cover includes at least one
A fairlead, at least one fairlead is interior to be equipped with electric conductor, hole wall and the electric conductor of at least one fairlead
Between be provided with insulating seal for insulating with the head cover, the electric conductor and at least one anode and it is described extremely
Another electric connection of both few cathode.
7. button cell according to claim 6, which is characterized in that the anode is electrically connected with the head cover, described
Cathode is electrically connected with the electric conductor.
8. button cell according to claim 6, which is characterized in that the insulating seal is hermetically filled in be drawn set on described
In portalling, the electric conductor is longitudinally arranged in the insulating seal, and its both ends is revealed respectively from the both ends of the insulating seal
Go out.
9. button cell according to claim 6, which is characterized in that the electric conductor is larger including size in rigidity
Head and the bar portion that is connect with the head, the head be located at the top of the insulating seal, the bar portion then longitudinal direction
It is interspersed in the insulating seal so that the head exposure is in the outside of the housing.
10. button cell according to claim 6, which is characterized in that the top surface of the electric conductor and the folding portion
Top surface flushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711354032.1A CN108232051A (en) | 2017-12-15 | 2017-12-15 | Button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711354032.1A CN108232051A (en) | 2017-12-15 | 2017-12-15 | Button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108232051A true CN108232051A (en) | 2018-06-29 |
Family
ID=62652219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711354032.1A Pending CN108232051A (en) | 2017-12-15 | 2017-12-15 | Button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108232051A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341949A (en) * | 2020-03-27 | 2020-06-26 | 湖北亿纬动力有限公司 | Battery shell, battery, manufacturing method of battery and battery module |
| CN111755633A (en) * | 2020-07-10 | 2020-10-09 | 瑞声科技（南京）有限公司 | Button cell |
| CN112234282A (en) * | 2020-10-10 | 2021-01-15 | 深圳市合壹新能技术有限公司 | Battery shell assembly, battery and preparation method |
| KR20210029686A (en) * | 2019-09-05 | 2021-03-16 | 충칭 브이디엘 일렉트로닉스 컴퍼니 리미티드 | Button battery for improving utilization rate of radial space |
| EP3836269A1 (en) * | 2019-12-13 | 2021-06-16 | Samsung SDI Co., Ltd. | Rechargeable battery |
| WO2022044628A1 (en) * | 2020-08-26 | 2022-03-03 | 株式会社村田製作所 | Secondary battery |
| WO2022057580A1 (en) * | 2020-09-16 | 2022-03-24 | 珠海冠宇电池股份有限公司 | Button cell and electronic product thereof |
| EP4040552A4 (en) * | 2019-09-30 | 2024-08-07 | Murata Manufacturing Co | Secondary cell |
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| KR19990041761A (en) * | 1997-11-24 | 1999-06-15 | 손욱 | Secondary battery cap assembly and assembly method |
| CN104953046A (en) * | 2014-03-31 | 2015-09-30 | 三星Sdi株式会社 | Rechargeable battery having top insulating member |
| CN105932337A (en) * | 2016-06-08 | 2016-09-07 | 惠州亿纬锂能股份有限公司 | Processing method of chargeable crust lithium ion battery |
| CN106654077A (en) * | 2017-01-23 | 2017-05-10 | 珠海微矩实业有限公司 | Button battery |
| CN207743262U (en) * | 2017-12-15 | 2018-08-17 | 珠海微矩实业有限公司 | Button cell |
-
2017
- 2017-12-15 CN CN201711354032.1A patent/CN108232051A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990041761A (en) * | 1997-11-24 | 1999-06-15 | 손욱 | Secondary battery cap assembly and assembly method |
| CN104953046A (en) * | 2014-03-31 | 2015-09-30 | 三星Sdi株式会社 | Rechargeable battery having top insulating member |
| CN105932337A (en) * | 2016-06-08 | 2016-09-07 | 惠州亿纬锂能股份有限公司 | Processing method of chargeable crust lithium ion battery |
| CN106654077A (en) * | 2017-01-23 | 2017-05-10 | 珠海微矩实业有限公司 | Button battery |
| CN207743262U (en) * | 2017-12-15 | 2018-08-17 | 珠海微矩实业有限公司 | Button cell |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210029686A (en) * | 2019-09-05 | 2021-03-16 | 충칭 브이디엘 일렉트로닉스 컴퍼니 리미티드 | Button battery for improving utilization rate of radial space |
| EP3813171A1 (en) * | 2019-09-05 | 2021-04-28 | Chongqing VDL Electronics Co., Ltd. | Button battery for improving utilization rate of radial space |
| KR102546364B1 (en) | 2019-09-05 | 2023-06-20 | 충칭 브이디엘 일렉트로닉스 컴퍼니 리미티드 | Button battery for improving utilization rate of radial space |
| EP4040552A4 (en) * | 2019-09-30 | 2024-08-07 | Murata Manufacturing Co | Secondary cell |
| EP3836269A1 (en) * | 2019-12-13 | 2021-06-16 | Samsung SDI Co., Ltd. | Rechargeable battery |
| US20210184184A1 (en) * | 2019-12-13 | 2021-06-17 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| CN112993374A (en) * | 2019-12-13 | 2021-06-18 | 三星Sdi株式会社 | Rechargeable battery |
| CN111341949A (en) * | 2020-03-27 | 2020-06-26 | 湖北亿纬动力有限公司 | Battery shell, battery, manufacturing method of battery and battery module |
| CN111755633A (en) * | 2020-07-10 | 2020-10-09 | 瑞声科技（南京）有限公司 | Button cell |
| WO2022044628A1 (en) * | 2020-08-26 | 2022-03-03 | 株式会社村田製作所 | Secondary battery |
| WO2022057580A1 (en) * | 2020-09-16 | 2022-03-24 | 珠海冠宇电池股份有限公司 | Button cell and electronic product thereof |
| CN112234282A (en) * | 2020-10-10 | 2021-01-15 | 深圳市合壹新能技术有限公司 | Battery shell assembly, battery and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 519000 The first, second, and third floors of Building 1, No. 3215 Zhufeng Avenue South, Qianwu Town, Doumen District, Zhuhai City, Guangdong Province Applicant after: Zhuhai Juneng New Energy Co.,Ltd. Address before: No. 303, 3rd floor, No. 9, Keji 8th Road, Tangjiawan Town, high tech Zone, Zhuhai City, Guangdong Province, 519000 Applicant before: ZHUHAI MICROMATRIX INDUSTRY Co.,Ltd. Country or region before: China |
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| CB02 | Change of applicant information |