CN202333015U - Lithium-ion button cell - Google Patents
Lithium-ion button cell Download PDFInfo
- Publication number
- CN202333015U CN202333015U CN2011204644902U CN201120464490U CN202333015U CN 202333015 U CN202333015 U CN 202333015U CN 2011204644902 U CN2011204644902 U CN 2011204644902U CN 201120464490 U CN201120464490 U CN 201120464490U CN 202333015 U CN202333015 U CN 202333015U
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- China
- Prior art keywords
- lithium
- battery shell
- ion button
- anode
- negative
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- Expired - Fee Related
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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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Abstract
The utility model relates to a lithium-ion button cell, and belongs to the field of cells. In order to solve the problem that the traditional lithium-ion button cell is not safe and environment-friendly. The lithium-ion button cell comprises a cathode cell shell, a foam aluminum layer, a sealing ring, a cathode, a gel electrolyte membrane, an anode and an anode cell shell, wherein the foam aluminum layer, the cathode, the gel electrolyte membrane and the anode are sequentially arranged in a cavity formed by buckling the cathode cell shell and the anode cell shell, the cathode cell shell and the anode cell shell are insulated by the sealing ring, and the cavity is sealed by the sealing ring to be a sealed space; the anode is arranged on the inner surface of the anode cell shell in the sealed space, and the cathode is arranged opposite to the anode; and the gel electrolyte membrane is arranged between the anode and the cathode, and the foam aluminum layer is arranged between the anode cell shell and the cathode cell shell.
Description
Technical field
The utility model relates to a kind of lithium-ion button battery, belongs to field of batteries.
Background technology
Lithium-ion button battery is less with its bodily form, and operating voltage is high, specific energy is big, have extended cycle life, pollute advantages such as little, in various miniature electronic products, has obtained using widely.But organic solvent toxic and volatile, burning-point in the lithium ion battery liquid electrolyte (calling electrolyte in the following text) are low, and participate in the pyrolysis of inside battery, bring hidden danger for the safety of battery; Because the pole piece size is little, pole piece is thin simultaneously, and generation is loosening easily in electrolyte, very easily short circuit problem.Therefore, the lithium-ion button battery of developing a kind of safety and environmental protection is present problem demanding prompt solution.
Summary of the invention
The utility model is in order to solve the problem of the existing dangerous environmental protection of lithium-ion button battery, and the utility model provides a kind of lithium-ion button battery.
The said a kind of lithium-ion button battery of the utility model, it comprises negative battery shell, foamed aluminium layer, sealing ring, negative pole, gel-type dielectric film, positive pole and positive battery shell,
Be disposed with foamed aluminium layer, negative pole, gel-type dielectric film and positive pole in the cavity that negative battery shell and positive battery shell facies button form; Be sealed into enclosure space by the sealing ring insulation and with said cavity between negative battery shell and the positive battery shell; The inner surface of positive battery shell is provided with positive pole in the said enclosure space; Anodal relative position is provided with negative pole, is provided with the gel-type dielectric film between positive pole and the negative pole, is provided with foamed aluminium layer between positive pole and the negative battery shell.
The advantage of the utility model: adopt gel electrolyte film (lithium salts two (trifluoromethyl sulphonyl) imines lithium (LiTFSI)-PMA (PMMA)) to replace electrolyte, as the barrier film of battery, make battery have advantages such as safe and efficient simultaneously.
Employing has sound-absorbing, heat insulation, vibration damping, absorption impact energy and electromagnetic foamed aluminium as pad, can make between inside battery layer and the layer closelyr, and pole piece is difficult for loosening, to guarantee the efficient more and safety of battery.
Description of drawings
Fig. 1 is the structural representation of the said a kind of lithium-ion button battery of the utility model;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Embodiment one, this execution mode is described below in conjunction with Fig. 1 to Fig. 2; The said a kind of lithium-ion button battery of this execution mode; It comprises negative battery shell 1, foamed aluminium layer 2, sealing ring 3, negative pole 4, gel-type dielectric film 5, positive pole 6 and positive battery shell 7
Negative battery shell 1 and positive battery shell 7 interlock and are disposed with foamed aluminium layer 2, negative pole 4, gel-type dielectric film 5 and anodal 6 in the cavity that forms; Be sealed into enclosure space by sealing ring 3 insulation and with said cavity between negative battery shell 1 and the positive battery shell 7; The inner surface of positive battery shell 7 is provided with anodal 6 in the said enclosure space; Anodal 6 relative positions are provided with negative pole 4; Be provided with gel-type dielectric film 5 between positive pole 6 and the negative pole 4, be provided with foamed aluminium layer 2 between positive pole 6 and the negative battery shell 1.
Embodiment two, this execution mode are described further execution mode one, and negative battery shell 1 is the circular lid of stainless steel material with positive battery shell 7.
Embodiment three, this execution mode are described further execution mode one or two, and foamed aluminium layer 2 is a circular piece.The foamed aluminium voids content is high, and pore diameter can reach to the millimeter level.Its gas permeability is very high, nearly all is intercommunicating pore, and pore surface area is big, and material unit weight is very little, its good conductivity.When foamed aluminium bore pressure, the lifting surface area that causes increased and the material strain hardening effect because pore subsides, and makes foam metal have excellent absorption ability for impact energy.Because foamed aluminium has good electrical conductivity and excellent absorption ability for impact energy, so that the foamed aluminium layer 2 that foamed aluminium is processed can make between inside battery layer and the layer as pad is tightr, pole piece is difficult for loosening, with guarantee battery more efficiently, safety.
Embodiment four, this execution mode are described further execution mode one, two or three, and sealing ring 3 is the sealed nylon circle.
Embodiment five, this execution mode are described further execution mode one, two, three or four, and gel-type dielectric film 5 is lithium salts two (trifluoromethyl sulphonyl) imines lithium (LiTFSI)-PMA (PMMA) gel-type film.
Embodiment six, this execution mode are described further execution mode one, two, three, four or five, and negative pole 4 is round-shaped with anodal 6.
Negative pole 4 is the circular electrode sheet.Active material, conductive agent, binding agent are mixed and fully stirring in proportion, add an amount of solvent adjustment viscosity, obtain the transparent and homogeneous slurry, on the even blade coating of slurry to collector (aluminium foil), under certain process conditions, obtaining cathode pole piece.
Anodal 6 is the circular electrode sheet.Active material, conductive agent, binding agent are mixed and fully stirring in proportion, add an amount of solvent adjustment viscosity, obtain the transparent and homogeneous slurry, on the even blade coating of slurry to collector (aluminium foil), under certain process conditions, obtaining anode pole piece.
Embodiment seven: provide a specific embodiment in this execution mode, it is 14mm that foamed aluminium layer 2 is chosen diameter, and thickness is the circular piece of 0.5mm; It is 14mm that negative pole 4 is chosen diameter, and thickness is the circular electrode sheet of 0.3mm; It is 14mm that gel-type dielectric film 5 is chosen diameter, and thickness is lithium salts two (trifluoromethyl sulphonyl) imines lithium (LiTFSI)-PMA (PMMA) gel-type film of 0.8mm; It is 14mm that positive pole 6 is chosen diameter, and thickness is the circular electrode sheet of 0.3mm.
The lithium-ion button battery of the utility model design owing to used the gel-type film to replace traditional electrolyte, has been used foamed aluminium to make structure compact more as pad, thereby has been made battery safer.Therefore, this kind lithium-ion button battery can use under the relatively poor environment of some higher temperatures (60 ℃), spatial stability.
Claims (6)
1. lithium-ion button battery, it comprises negative battery shell (1), foamed aluminium layer (2), sealing ring (3), negative pole (4), gel-type dielectric film (5), anodal (6) and positive battery shell (7),
Negative battery shell (1) and positive battery shell (7) interlock and are disposed with foamed aluminium layer (2), negative pole (4), gel-type dielectric film (5) and positive pole (6) in the cavity that forms; Be sealed into enclosure space by sealing ring (3) insulation and with said cavity between negative battery shell (1) and the positive battery shell (7); The inner surface of positive battery shell (7) is provided with positive pole (6) in the said enclosure space; Anodal (6) relative position is provided with negative pole (4); Be provided with gel-type dielectric film (5) between anodal (6) and the negative pole (4), be provided with foamed aluminium layer (2) between anodal (6) and the negative battery shell (1).
2. a kind of lithium-ion button battery according to claim 1 is characterized in that, negative battery shell (1) and positive battery shell (7) are the circular lid of stainless steel material.
3. a kind of lithium-ion button battery according to claim 1 is characterized in that, foamed aluminium layer (2) is a circular piece.
4. a kind of lithium-ion button battery according to claim 1 is characterized in that, sealing ring (3) is the sealed nylon circle.
5. a kind of lithium-ion button battery according to claim 1 is characterized in that, gel-type dielectric film (5) is lithium salts two (trifluoromethyl sulphonyl) imines lithium (LiTFSI)-PMA (PMMA) gel-type film.
6. a kind of lithium-ion button battery according to claim 1 is characterized in that, negative pole (4) and anodal (6) are round-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644902U CN202333015U (en) | 2011-11-21 | 2011-11-21 | Lithium-ion button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644902U CN202333015U (en) | 2011-11-21 | 2011-11-21 | Lithium-ion button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333015U true CN202333015U (en) | 2012-07-11 |
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ID=46444982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204644902U Expired - Fee Related CN202333015U (en) | 2011-11-21 | 2011-11-21 | Lithium-ion button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983470A (en) * | 2020-08-24 | 2020-11-24 | 哈尔滨理工大学 | Lithium ion power battery safety degree evaluation method and device based on correlation dimension |
-
2011
- 2011-11-21 CN CN2011204644902U patent/CN202333015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983470A (en) * | 2020-08-24 | 2020-11-24 | 哈尔滨理工大学 | Lithium ion power battery safety degree evaluation method and device based on correlation dimension |
| CN111983470B (en) * | 2020-08-24 | 2022-06-24 | 哈尔滨理工大学 | Lithium ion power battery safety degree evaluation method and device based on correlation dimension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |