CN106684400A - Button cell - Google Patents
Button cell Download PDFInfo
- Publication number
- CN106684400A CN106684400A CN201510751680.5A CN201510751680A CN106684400A CN 106684400 A CN106684400 A CN 106684400A CN 201510751680 A CN201510751680 A CN 201510751680A CN 106684400 A CN106684400 A CN 106684400A
- Authority
- CN
- China
- Prior art keywords
- cover
- button cell
- positive electrode
- positive
- support
- 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
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Classifications
-
- 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
- H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a button cell, and belongs to the field of cell preparation. The button cell comprises a negative electrode cover and a positive electrode cover, wherein a sealing rubber ring is arranged at a buckle part of the negative electrode cover and the positive electrode cover so that a sealed space is formed between the negative electrode cover and the positive electrode cover, a negative electrode, a separator, a positive electrode and a current collector are arranged in the sealed space, an annular sealing cavity is arranged between a side wall of the positive electrode and an inner wall of the positive electrode cover, the sealing cavity is filled with an electrolyte, the button cell also comprises a support cover, the support cover comprises a main body, an annular cladding body and an annular support body, the main body is arranged between the current collector and the positive electrode cover, the annular cladding body is formed by axially and upwards extending an outer edge of the main body, the annular support body is formed by outwards extending an upper edge of the cladding body along a radial direction, and an outer edge of the support body props against the inner wall of the positive electrode cover. By arranging the support cover, the positive electrode, the current collector and the positive electrode cover can be effectively prevented from move relative to one another, the integral stability of the button cell is improved, the application quality of the button cell is ensured, liquid leakage is effectively prevented, and the service lifetime of the button cell is prolonged.
Description
Technical field
The present invention relates to battery makes field, 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 leaves the space of filling electrolyte typically 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 because positive pole is susceptible in use expansion, 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, simultaneously this partial electrolyte liquid is easy to be pressed against outside battery in battery seal, 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 the positive pole of button cell in prior art, relative displacement easily occurs between collector, positive cover three and its technical problem of leakage easily occurs.
To reach above-mentioned technical purpose, technical scheme provides a kind of button cell, including the negative cover and positive cover that coordinate 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 contact or the close side of the positive electrode wall are arranged.
Preferably, the supporter upper surface or the close O-ring seal lower surface are arranged.
Preferably, the collector lower surface is provided with multiple grooves being crisscross arranged and projection.
Preferably, the cross section of the groove and projection is curved.
Preferably, multiple spurt holes have been evenly arranged on the collector, have made the collector lower surface form 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 restriction 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.
Description of the drawings
Fig. 1 is the cross section structure diagram of the button cell of the present invention；
Fig. 2 is the structural representation of the support cover of the button cell of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The embodiment provides a kind of button cell, such as Fig. 1, shown in Fig. 2, including the negative cover 1 and positive cover 2 that coordinate 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 the relative positive cover 2 of support cover 9 is fixedly installed, 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 restriction of cladding 902, it is more axial expansion, extruding negative cover 1 makes the relative positive cover 2 of negative cover 1 produce the trend up moved, 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 arranged, 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 contact of the inwall of the cladding 901 or the side wall of the close positive pole 6 are arranged, on the one hand it be easy to collector 7 and positive pole 6 to install in support cover 9, on the other hand preferably limits positive pole 6 and is radially expanded, and will be radially expanded guiding for axial expansion.And, as shown in Fig. 2 when support cover 9 is arranged, being preferably uniformly provided with multiple through holes on loose structure, i.e. support cover 9, specifically, through hole is equipped with 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, on the other hand the upper and lower height of design cladding is passed through, make supporter upper surface or arrange 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, the inside miscellaneous part of button cell is squeezed to be damaged by pressure to prevent buckle from excessively causing, 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 crisscross arranged and projection in collector lower surface, and to reach the purpose for improving catchment effect, 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, make the collector lower surface form multiple cracking shape burrs, and active material can be filled in multiple spurt holes, increase activity.
The support cover of the present embodiment is generally difficult the metal material reacted 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, does not constitute limiting 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, including the negative cover and positive cover that coordinate 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 arranged 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 arranged near the O-ring seal lower surface.
4. according to the arbitrary described button cell of claim 1 ~ 3, it is characterised in that the collector lower surface is provided with multiple grooves being crisscross arranged 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 the arbitrary described button cell of claim 1 ~ 3, it is characterised in that be evenly arranged multiple spurt holes on the collector, make the collector lower surface form 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 |
|---|---|---|---|
| CN201510751680.5A CN106684400A (en) | 2015-11-09 | 2015-11-09 | Button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751680.5A CN106684400A (en) | 2015-11-09 | 2015-11-09 | Button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684400A true CN106684400A (en) | 2017-05-17 |
Family
ID=58862790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510751680.5A Pending CN106684400A (en) | 2015-11-09 | 2015-11-09 | Button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106684400A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550718A (en) * | 2018-06-15 | 2018-09-18 | 宜昌力佳科技有限公司 | A kind of button cell with pedestal |
| CN111326760A (en) * | 2018-12-13 | 2020-06-23 | 中国科学院大连化学物理研究所 | Metal/air battery |
| CN113131046A (en) * | 2021-04-16 | 2021-07-16 | 中银（宁波）电池有限公司 | Alkaline zinc-manganese button cell and preparation method thereof |
-
2015
- 2015-11-09 CN CN201510751680.5A patent/CN106684400A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550718A (en) * | 2018-06-15 | 2018-09-18 | 宜昌力佳科技有限公司 | A kind of button cell with pedestal |
| CN108550718B (en) * | 2018-06-15 | 2024-01-19 | 宜昌力佳科技有限公司 | Button cell with base |
| CN111326760A (en) * | 2018-12-13 | 2020-06-23 | 中国科学院大连化学物理研究所 | Metal/air battery |
| CN111326760B (en) * | 2018-12-13 | 2021-02-09 | 中国科学院大连化学物理研究所 | Metal/air battery |
| CN113131046A (en) * | 2021-04-16 | 2021-07-16 | 中银（宁波）电池有限公司 | Alkaline zinc-manganese button cell and preparation method thereof |
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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: 20170517 |
|
| WD01 | Invention patent application deemed withdrawn after publication |