CN106876613A - A kind of button cell - Google Patents
A kind of button cell Download PDFInfo
- Publication number
- CN106876613A CN106876613A CN201510911575.3A CN201510911575A CN106876613A CN 106876613 A CN106876613 A CN 106876613A CN 201510911575 A CN201510911575 A CN 201510911575A CN 106876613 A CN106876613 A CN 106876613A
- Authority
- CN
- China
- Prior art keywords
- cover
- positive
- button cell
- collector
- negative
- 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
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 of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
-
- 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 of a single cell or a single battery
- 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
-
- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
-
- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
The invention discloses a kind of button cell, belong to field of cell preparation.The button cell includes negative cover and positive cover, the buckle part of negative cover and positive cover is provided with O-ring seal, make to form sealing space between negative cover and positive cover, negative pole is provided with sealing space, barrier film, positive pole, collector, there is annular seal cavity between side of the positive electrode wall and positive cover inwall, electrolyte is filled with seal cavity, button cell also includes support cover, support cover is included located at the main body between collector and positive cover, the ring-type cladding for being formed is extended axially upward by the main body outer rim, the annular support body for being formed is extended radially outward by cladding top, supporter outer rim abuts the positive cover inwall.The present invention can effectively prevent that relative displacement occurs between positive pole, collector, positive cover three by setting a support cover, improve the resistance to overturning of the button cell, ensure its use quality, effectively prevent leakage, extend its service life.
Description
Technical field
Field is made the present invention relates to battery, and in particular to a kind of button cell.
Background technology
Button cell is light, compact because of its, therefore is widely used in various miniature electronic products, and general diameter is from 4.8mm to 30mm, thickness is mainly used in the back-up source of each electronic product, such as computer main board from 1.0mm to 7.7mm, electronic watch, electronic dictionary, electronic scale, memory card, remote control, electronic toy, pacemaker, electronic hearing aid, counter, camera etc..With the increasingly acceleration that electronic product develops, the requirement of button type battery is also increasingly improved.
Existing button cell typically leaves the space of filling electrolyte between positive pole and positive cover, on the one hand it cause positive pole, collector, relative displacement can occur between positive cover three, causing the quality of button cell reduces, on the other hand it is susceptible to expansion in use due to positive pole, because of the presence in above-mentioned space, so that above-mentioned being expanded to is radially expanded, electrolyte radial compression positive cover, loosen buckle between positive cover and negative cover, so as to easily produce leakage, shorten the service life of battery, this partial electrolyte liquid is easy to be pressed against outside battery in battery seal simultaneously, so as to reduce guarantor's liquid measure of battery, reduce the electrical property of battery.
The content of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of button cell is proposed, solve that relative displacement easily occurs between the positive pole of button cell, collector, positive cover three in the prior art and its technical problem of leakage easily occurs.
To reach above-mentioned technical purpose, technical scheme provides a kind of button cell, negative cover and positive cover including coordinating buckle up and down, the buckle part of the negative cover and positive cover is provided with O-ring seal, make to form a sealing space between negative cover and positive cover, negative pole is from top to bottom sequentially provided with the sealing space, barrier film, positive pole, collector, there is an annular seal cavity between the side of the positive electrode wall and positive cover inwall, electrolyte is filled with the seal cavity, the button cell also includes a support cover, the support cover includes one located at the main body between collector and positive cover, the ring-type cladding for being formed is extended axially upward by the main body outer rim, the annular support body for being formed is extended radially outward by cladding top, the supporter outer rim abuts the positive cover inwall.
Preferably, the cladding inwall is contacted or set near the side of the positive electrode wall.
Preferably, the supporter upper surface or the close O-ring seal lower surface are set.
Preferably, the collector lower surface is provided with multiple grooves being staggered and projection.
Preferably, the cross section of the groove and projection is curved.
Preferably, multiple spurt holes have been evenly arranged on the collector, the collector lower surface is formed multiple cracking shape burrs.
Preferably, the support cover is loose structure.
Preferably, the support cover is stainless steel.
Compared with prior art, beneficial effects of the present invention include：By setting a support cover, collector and positive pole are fixed in the support cover, and support cover is fixedly installed with respect to positive cover, positive pole can effectively be prevented, collector, there is relative displacement between positive cover three, improve the resistance to overturning of the button cell, ensure its use quality simultaneously because positive pole is fixed in support cover, under the limitation of cladding, it is more axial expansion, extruding negative cover makes negative cover that the trend up moved is produced with respect to positive cover, and then make the even closer of positive cover and negative pole cover latch, effectively prevent leakage, extend its service life.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of button cell of the invention；
Fig. 2 is the structural representation of the support cover of button cell of the invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The embodiment provides a kind of button cell,Such as Fig. 1,Shown in Fig. 2,Negative cover 1 and positive cover 2 including coordinating buckle up and down,The buckle part of the negative cover 1 and positive cover 2 is provided with O-ring seal 3,Make to form a sealing space between negative cover 1 and positive cover 2,Negative pole 4 is from top to bottom sequentially provided with the sealing space,Barrier film 5,Positive pole 6,Collector 7,There is an annular seal cavity 8 between the side wall of the positive pole 6 and the inwall of positive cover 2,Electrolyte is filled with the seal cavity 8,The button cell also includes a support cover 9,The support cover 9 includes one located at the main body 901 between collector 7 and positive cover 2,The ring-type cladding 902 for being formed is extended axially upward by the outer rim of the main body 901,The annular support body 903 for being formed is extended radially outward by the top of cladding 902,The outer rim of the supporter 903 abuts the inwall of positive cover 2.
The present embodiment is by setting a support cover 9, collector 7 and positive pole 6 are fixed in the support cover 9, and support cover 9 is fixedly installed with respect to positive cover 2, positive pole 6 can effectively be prevented, collector 7, there is relative displacement between the three of positive cover 2, improve the resistance to overturning of the button cell, ensure its use quality, simultaneously because the part of positive pole 6 is fixed in support cover 9, under the limitation of cladding 902, it is more axial expansion, extruding negative cover 1 makes negative cover 1 produce the trend up moved with respect to positive cover 2, and then make the even closer of positive cover 2 and the buckle of negative cover 1, effectively prevent leakage, extend its service life, in addition, support cover 9 can effectively prevent the electrolyte in seal cavity 8 to be extruded in battery seal, so as to increase guarantor's liquid measure of battery, improve battery electrical property.
When the present embodiment is specifically set, the external diameter of positive pole 6 and collector 7 is traditionally arranged to be identical, it is identical with positive pole 6 that the main body 901 of support cover 9 may be configured as external diameter, also may be slightly larger than the external diameter of positive pole 6, i.e. so that the inwall of the cladding 901 is contacted or set near the side wall of the positive pole 6, on the one hand it be easy to collector 7 and positive pole 6 in being installed in support cover 9, and on the other hand preferably limitation positive pole 6 is radially expanded, and will be radially expanded guiding for axial expansion.And, as shown in Fig. 2 when support cover 9 is set, being preferably uniformly provided with multiple through holes on loose structure, i.e. support cover 9, specifically, being equipped with through hole on the main body 901 of the support cover 9, cladding 902, supporter 903, make whole support cover 9 be in loose structure.
The supporter outer rim of the present embodiment abuts positive cover inwall, on the one hand it be used to fix support cover, support cover is prevented with respect to positive cover displacement, the another aspect height upper and lower by designing cladding, make supporter upper surface or set near the O-ring seal lower surface, consequently facilitating negative cover and positive cover support O-ring seal in buckle, and then support negative cover, prevent from buckle from excessively causing the inside miscellaneous part of button cell to be squeezed to damage by pressure, simultaneously during use, the supporter upper surface of the support cover of the present embodiment can also give negative cover with support force, avoid negative cover and positive cover that relative motion occurs during opposing compression and squeeze bad internal part, extend the service life of battery.
The collector of the present embodiment can as needed carry out different settings, specifically, the present embodiment can be provided with multiple grooves being staggered and projection in collector lower surface, and the purpose of catchment effect is improved to reach, and the present embodiment is preferably groove and the cross section of projection is curved；The present embodiment also can on a current collector be evenly arranged multiple spurt holes, the collector lower surface is formed multiple cracking shape burrs, and multiple spurt can fill active material, increase activity in hole.
The support cover of the present embodiment is generally the metal material for being difficult to react with positive cover, and the support cover is preferably stainless steel, and its chemical stability is good, and with preferable support strength.
The specific embodiment of present invention described above, is not intended to limit the scope of the present invention..Various other corresponding change and deformation that any technology according to the present invention design is made, should be included in the protection domain of the claims in the present invention.
Claims (8)
1. a kind of button cell, negative cover and positive cover including coordinating buckle up and down, the buckle part of the negative cover and positive cover is provided with O-ring seal, make to form a sealing space between negative cover and positive cover, negative pole is from top to bottom sequentially provided with the sealing space, barrier film, positive pole, collector, there is an annular seal cavity between the side of the positive electrode wall and positive cover inwall, electrolyte is filled with the seal cavity, it is characterized in that, the button cell also includes a support cover, the support cover includes one located at the main body between collector and positive cover, the ring-type cladding for being formed is extended axially upward by the main body outer rim, the annular support body for being formed is extended radially outward by cladding top, the supporter outer rim abuts the positive cover inwall.
2. button cell according to claim 1, it is characterised in that the cladding inwall contact is set near the side of the positive electrode wall.
3. button cell according to claim 1, it is characterised in that the supporter upper surface is set near the O-ring seal lower surface.
4. according to any described button cell of claim 1 ~ 3, it is characterised in that the collector lower surface is provided with multiple grooves being staggered and projection.
5. button cell according to claim 4, it is characterised in that the cross section of the groove and projection is curved.
6., according to any described button cell of claim 1 ~ 3, it is characterised in that be evenly arranged multiple spurt holes on the collector, the collector lower surface is formed multiple cracking shape burrs.
7. button cell according to claim 1, it is characterised in that the support cover is loose structure.
8. button cell according to claim 7, it is characterised in that the support cover is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911575.3A CN106876613A (en) | 2015-12-11 | 2015-12-11 | A kind of button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911575.3A CN106876613A (en) | 2015-12-11 | 2015-12-11 | A kind of button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876613A true CN106876613A (en) | 2017-06-20 |
Family
ID=59236833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911575.3A Pending CN106876613A (en) | 2015-12-11 | 2015-12-11 | A kind of button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106876613A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110201A (en) * | 2017-12-27 | 2018-06-01 | 惠州亿纬锂能股份有限公司 | A kind of pole piece fixed mechanism and button cell |
| CN109638179A (en) * | 2017-10-05 | 2019-04-16 | 美国亚德诺半导体公司 | Battery case |
| CN109755421A (en) * | 2019-03-12 | 2019-05-14 | 四川福来威新能源科技有限公司 | Button cell and button cell closing lid method |
| WO2019237649A1 (en) * | 2018-06-15 | 2019-12-19 | 宜昌力佳科技有限公司 | Button battery and preparation method therefor |
-
2015
- 2015-12-11 CN CN201510911575.3A patent/CN106876613A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638179A (en) * | 2017-10-05 | 2019-04-16 | 美国亚德诺半导体公司 | Battery case |
| CN109638179B (en) * | 2017-10-05 | 2021-11-12 | 美国亚德诺半导体公司 | Battery case |
| CN108110201A (en) * | 2017-12-27 | 2018-06-01 | 惠州亿纬锂能股份有限公司 | A kind of pole piece fixed mechanism and button cell |
| CN108110201B (en) * | 2017-12-27 | 2021-08-24 | 惠州亿纬锂能股份有限公司 | Pole piece fixing mechanism and button cell |
| WO2019237649A1 (en) * | 2018-06-15 | 2019-12-19 | 宜昌力佳科技有限公司 | Button battery and preparation method therefor |
| CN109755421A (en) * | 2019-03-12 | 2019-05-14 | 四川福来威新能源科技有限公司 | Button cell and button cell closing lid method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
|
| WD01 | Invention patent application deemed withdrawn after publication |