CN202996945U - Button cell - Google Patents
Button cell Download PDFInfo
- Publication number
- CN202996945U CN202996945U CN2012207014459U CN201220701445U CN202996945U CN 202996945 U CN202996945 U CN 202996945U CN 2012207014459 U CN2012207014459 U CN 2012207014459U CN 201220701445 U CN201220701445 U CN 201220701445U CN 202996945 U CN202996945 U CN 202996945U
- Authority
- CN
- China
- Prior art keywords
- plate group
- button cell
- negative pole
- cell
- polar plate
- 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.)
- Ceased
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a button cell. According to the technical scheme, the button cell comprises a negative pole cover and a polar plate group, as well as an elastic part between the negative pole cover and the polar plate group, wherein the elastic part between the negative pole cover and the polar plate group is a conical spiral spring, a large opening of the conical spiral spring faces the negative pole cover, and a small opening faces the polar plate group. The button cell disclosed by the utility model is a hydrogen-nickel button cell provided with the conical spiral spring with a large elastic range and stable elasticity on the negative pole side, the sustained and stable elasticity can improve the difference in tightness of the assembly of the cell, the internal resistance of the cell tends to be consistent, and the phenomenon of unstable curve during charge and discharge of the cell can be basically avoided.
Description
Technical field
The utility model belongs to the button cell technical field, is specifically related to a kind of low internal resistance button cell that is added with tapered coil spring in negative side.
Background technology
The MH-Ni buckle type battery becomes the stand-by power supply of miniaturized electronics and intelligent instrumentation day by day, yet the MH-Ni buckle type consistency of internal resistance of battery of producing at present is poor, the charging and discharging curve of minority battery is sometimes also unstable, present zigzag, this is that assembling elasticity due to battery differs greatly and causes.Some company has added corrugated gasket in negative side for this reason, but because corrugated gasket exists elastic range little, the defectives such as the easy decay of elasticity are improved little to the poor problem of above-mentioned button cell internal resistance consistency.
Summary of the invention
The technical problem that the utility model solves has been to provide a kind of low internal resistance button cell that is added with tapered coil spring in negative side.
The technical solution of the utility model is: a kind of button cell, comprise negative cover and pole plate group and between elastomeric element, it is characterized in that: the elastomeric element between described negative cover and pole plate group is tapered coil spring, the large mouth of this tapered coil spring is towards negative cover, and osculum is towards the pole plate group.
The utility model is a kind ofly to add that in negative side elastic range is large, the MH-Ni buckle type battery of the tapered coil spring of elastic stability, continual and steady elasticity has been improved the difference of battery assembling elasticity, the internal resistance of cell reaches unanimity, and the phenomenon of curve shakiness when substantially having stopped battery charging and discharging.In addition, tapered coil spring forms a space separating between pole plate group and negative cover, be conducive to like this electrolyte and form circulation between the pole plate group, reduce the electrochemical polarization of battery, the gas that produces when also charge for battery in this space in addition provides temporary place, has also increased electrochemical interface simultaneously, reduced the internal resistance of cell, can effectively reduce inner pressure of battery, reduce battery gas leakage or leakage chance, extend battery cycle life.
Description of drawings
Fig. 1 is the structural representation of tapered coil spring in the utility model; Fig. 2 is the structural representation of the utility model button cell.
Drawing explanation: 1, negative cover, 2, tapered coil spring, 3, punching pad or burr pad, 4, cushion rubber, 5, negative plate, 6, barrier film, 7, positive plate, 8, positive pole steel shell, 9, the pole plate group.
Embodiment
Describe by reference to the accompanying drawings embodiment in detail.A kind of low internal resistance MH-Ni buckle type battery, comprise negative cover 1 and pole plate group 9 and between elastomeric element, elastomeric element between described negative cover 1 and pole plate group 9 is tapered coil spring 2, and the large mouth of this tapered coil spring 2 is towards negative cover 1, and osculum is towards pole plate group 9.The MH-Ni buckle type battery is combined by pole plate group 9, tapered coil spring 2, negative cover 1, cushion rubber 4 and positive pole steel shell 8, this pole plate group 9 by nickel positive electrode plate 7, the hydrogen storage alloy negative plate 5 of brace structure or single chip architecture and be arranged on positive plate and negative plate between barrier film 6 form.Concrete compound mode is: (1), first with flange negative cover 1 and and band clasp cushion rubber 4 combine; (2), tapered coil spring 2 great circles are put into combination cushion rubber 4 towards negative cover 1 direction, then punching pad or burr pad 3 be placed on tapered coil spring 2 (whether put the punching pad or the burr pad depends on the battery cathode basis material); (3), negative plate 5, barrier film 6 and positive plate 7 cross foldings are become pole plate group 9 put in the assembly of first two steps formation; (4), filling electrolyte; (5), positive pole steel shell 8 is buckled on the combinations thereof body that added electrolyte; (6), sealing is the moulding battery.The utility model adds that in negative side elastic range is large, the MH-Ni buckle type battery of the tapered coil spring 2 of elastic stability, continual and steady elasticity has been improved the difference of battery assembling elasticity, the internal resistance of cell reaches unanimity, and the phenomenon of curve shakiness when substantially having stopped battery charging and discharging.In addition, tapered coil spring 2 forms a space separating between pole plate group 9 and negative cover 1, be conducive to like this electrolyte and form circulation between the pole plate group, reduce the electrochemical polarization of battery, the gas that produces when also charge for battery in this space in addition provides temporary place, has also increased oxygen and negative pole compound interface simultaneously, can effectively reduce inner pressure of battery, reduce battery gas leakage and leakage chance, extend battery cycle life.
Claims (1)
1. button cell, comprise negative cover and pole plate group and between elastomeric element, it is characterized in that: the elastomeric element between described negative cover and pole plate group is tapered coil spring, and the large mouth of this tapered coil spring is towards negative cover, and osculum is towards the pole plate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207014459U CN202996945U (en) | 2012-12-18 | 2012-12-18 | Button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207014459U CN202996945U (en) | 2012-12-18 | 2012-12-18 | Button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996945U true CN202996945U (en) | 2013-06-12 |
Family
ID=48568079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207014459U Ceased CN202996945U (en) | 2012-12-18 | 2012-12-18 | Button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022573A (en) * | 2012-12-18 | 2013-04-03 | 河南创力新能源科技有限公司 | Button battery |
-
2012
- 2012-12-18 CN CN2012207014459U patent/CN202996945U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022573A (en) * | 2012-12-18 | 2013-04-03 | 河南创力新能源科技有限公司 | Button battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN TROILY NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HE'NAN TROILY NEW ENERGY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 453000, Henan, Xinxiang Province Yu East Industrial Agglomeration Area Patentee after: HENAN TROILY NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 453000, Henan, Xinxiang Province Yu East Industrial Agglomeration Area Patentee before: Henan Troily New Energy Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20220901 Decision number of declaring invalidation: 57972 Granted publication date: 20130612 |
|
| IW01 | Full invalidation of patent right |