CN203218351U - Button lithium battery with metal supporting ring - Google Patents
Button lithium battery with metal supporting ring Download PDFInfo
- Publication number
- CN203218351U CN203218351U CN2013201457706U CN201320145770U CN203218351U CN 203218351 U CN203218351 U CN 203218351U CN 2013201457706 U CN2013201457706 U CN 2013201457706U CN 201320145770 U CN201320145770 U CN 201320145770U CN 203218351 U CN203218351 U CN 203218351U
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- Prior art keywords
- ring
- negative
- lithium battery
- wall
- cover
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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 discloses a button lithium battery with a metal supporting ring. The button lithium battery comprises a negative cover, a negative plate, a negative collector net, a diaphragm, a positive shell and a positive plate, wherein a rubber sealing ring is embedded in the outer periphery of the negative cover to form a negative cover group, the positive shell and the negative cover group are matched in a sealing manner to form a sealed accommodating cavity filled with electrolyte, the dual-wall annular supporting ring is arranged between the rubber sealing ring of the negative cover group and the positive shell, and the inner wall of the supporting ring tightly adheres to the outer wall of the positive plate while the outer wall of the supporting ring adjoins to the inner wall of the positive shell. The button lithium battery has the advantages that the added dual-wall annular supporting ring replaces an excessively high plastic ring and can strongly support a negative cover and a plastic ring which are subjected to press seal, and the electrolyte can be stored in a gap between the two walls of the dual-wall metal ring so as to increase the discharge and storage capacity of the battery.
Description
Technical field
The utility model belongs to technical field of lithium batteries, is specifically related to the improvement of button lithium battery structure.
Background technology
It is little that button lithium battery has a volume, cell voltage height, and discharging voltage balance, and characteristics such as operating temperature range is wide, and storage life is long are widely used in computer main board, calculator, electronic watch, remote controller, electronic toy and ornaments etc.Present Attitude surpasses 4 millimeters button lithium battery, it comprises negative electrode casing, negative pole, barrier film, positive pole, collector, the anode cover that is cascading, the negative electrode casing outer peripheral edges are inlaid with O-ring seal, after anode cover and negative electrode casing cooperate, O-ring seal plays sealing function, in the seal cavity that anode cover 16 and negative electrode casing cooperation form electrolyte is housed.This button lithium battery because O-ring seal contacts with the anode cover large tracts of land, has guaranteed the sealing property of battery, but the internal volume of this battery is little, so the non-maximization of battery capacity.Simultaneously, the body seal of existing button cell uses mould that the metal shell oral area is carried out arc-shaped bend mostly, thereby the edge that the extruding five metals covers is moulded circle, utilize the strain of cushion rubber with the sealing of battery inner chamber reception room, to guarantee stablizing of cell reaction utmost point group material component and normally the carrying out of exoelectrical reaction in the reception room.
In production application, for support lid top bigger seal pressure, the plastic tube of lithium battery lid bottom must guarantee to have certain thickness, and this encloses the thick cushion rubber of supporting role, certainly will occupy the expensive real estate in the battery container chamber, reduce the addition of cell active materials, thereby reduced the discharge capacity of battery.Moreover when the battery gauge thickness was big, the dark plastic cement contraction distortion of plastic tube chamber was also bigger.This guarantees to bring certain difficulty for component processing and size.
The utility model content
The purpose of this utility model is to provide a kind of button lithium battery of new construction, with maximum using battery intracavity space, increases battery discharge and storage capacity, thereby addresses the above problem.
For realizing this purpose, the technical solution of the utility model is: a kind of button lithium battery with metal supporting rings, comprise negative cover, negative plate, negative pole currect collecting net, barrier film, anode cover, positive plate, described negative cover outer peripheral edges are inlaid with O-ring seal and form the negative cover group, described anode cover and negative cover group are sealed and matched and form a sealing host cavity, be filled with electrolyte in the described sealing host cavity, be provided with double-walled annular brace circle between the O-ring seal of described negative cover group and the anode cover, described bracing ring inwall is close to the positive plate outer wall, and the outer wall of described bracing ring is pressed close to the anode cover inwall.
As preferably, form the tunnel type space between described support ring two walls, the inwall of bracing ring is provided with several liquid drain holes.
As preferably, form the tunnel type space between described support ring two walls, the inside wall height of bracing ring is a little less than the outer wall height.
As preferably, described support ring is the metallic conductor that can not produce chemical reaction with described anode cover.
Compared with prior art, set up in the battery inner chamber of the utility model below negative cover and edge are moulded circle and placed a double-walled annular brace circle, in order to replace too high plastic tube, negative cover and the plastic tube that is subjected to press seal played strong supporting role, the inner ring of double-walled circle can also prevent that battery anode slice excessive radial expansion in discharge process from making its axial expansion simultaneously, to guarantee that axial contact force has just reduced the internal resistance of cell, promote the battery power output performance.The gap can store electric liquid between two walls of double-walled becket in addition, thereby has improved the space utilization of battery inner chamber.The utility model is by above-mentioned improvement, to the thicker button battery of the especially big specification of button battery in sealing property, battery capacity, discharge performance stores the expiring date aspect and all is significantly improved.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of bracing ring in the utility model.
Wherein: 1 negative cover, 2 edge plastic tubes, 3 anode covers, 4 double-walled annular brace circles, 5 anode collection nets, 6 positive plates, 7 barrier films, 8 negative pole currect collecting nets, 9 negative pole lithium sheets.
Embodiment
In conjunction with the embodiments the utility model is further specified with reference to the accompanying drawings.
Shown in Fig. 1-2, process negative cover 1, anode cover 3, double-walled support ring 4 by the design specification size with punch press and mould punching with 0.25mm and the thick stainless steel band of 0.20mm in advance.Again negative cover 1 and edge are moulded circle 2 injection mouldings combination.Combination back welding currect collecting net 8.Be made into powder with manganese dioxide, conductive agent, adhesive.Adding rotary pelleting machine with this powder adds currect collecting net 5 and is pressed into that positive plate 6. changes the dry air control box over to upper-part behind depth drying or operation room carries out the battery assembling.Concrete steps are as follows: in drying box with lithium sheet 9 and negative cover 1 pressurized adhesion; Be pressed in barrier film 7 shop on the lithium sheet 9 and drip electric liquid after standby; By the described direction of Fig. 1 double-walled support ring 4 is put into anode cover 3 and added quantitative electrolyte; Positive plate 6 wire sides that soaked electrolyte are put into support ring 4 towards anode cover; Preceding standby negative cover 1,9,7 combinations are fastened in the anode cover 3 assembling and finish by shown in Figure 1; The battery that assembles is sent into the sealing die pressing sealing; The battery that seals changes into after the washing oven dry, and the utility model is implemented to finish.
The utility model is primarily aimed at the improvement that lithium battery structure carries out, the above only is the utility model preferred embodiment, non-so namely limit to claim of the present utility model, so simple and easy variation and the equivalent transformation of doing with the utility model specification and graphic content all should be contained in the claim of the present utility model such as.
Claims (4)
1. button lithium battery with metal supporting rings, comprise negative cover, negative plate, negative pole currect collecting net, barrier film, anode cover, positive plate, described negative cover outer peripheral edges are inlaid with O-ring seal and form the negative cover group, described anode cover and the negative cover group formation-sealing host cavity that is sealed and matched, be filled with electrolyte in the described sealing host cavity, it is characterized in that: be provided with double-walled annular brace circle between the O-ring seal of described negative cover group and the anode cover, described bracing ring inwall is close to the positive plate outer wall, and the outer wall of described bracing ring is pressed close to the anode cover inwall.
2. the button lithium battery with metal supporting rings according to claim 1 is characterized in that: form the tunnel type space between described support ring two walls, the inwall of bracing ring is provided with several liquid drain holes.
3. the button lithium battery with metal supporting rings according to claim 2 is characterized in that: form the tunnel type space between described support ring two walls, the inside wall height of bracing ring is a little less than the outer wall height.
4. the button lithium battery with metal supporting rings according to claim 3 is characterized in that: described support ring is not for producing the metallic conductor of chemical reaction with described anode cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201457706U CN203218351U (en) | 2013-03-28 | 2013-03-28 | Button lithium battery with metal supporting ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201457706U CN203218351U (en) | 2013-03-28 | 2013-03-28 | Button lithium battery with metal supporting ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218351U true CN203218351U (en) | 2013-09-25 |
Family
ID=49207860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201457706U Expired - Fee Related CN203218351U (en) | 2013-03-28 | 2013-03-28 | Button lithium battery with metal supporting ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218351U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654077A (en) * | 2017-01-23 | 2017-05-10 | 珠海微矩实业有限公司 | Button battery |
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| 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 |
| CN112670512A (en) * | 2020-12-24 | 2021-04-16 | 新利达电池实业（德庆）有限公司 | Alkaline button cell and positive plate of button cell |
| 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 |
| EP3809484A4 (en) * | 2018-06-15 | 2021-07-28 | Yichang Power Glory Technology Co., Ltd. | Button battery and preparation method therefor |
-
2013
- 2013-03-28 CN CN2013201457706U patent/CN203218351U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654077A (en) * | 2017-01-23 | 2017-05-10 | 珠海微矩实业有限公司 | Button battery |
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| 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 |
| EP3809484A4 (en) * | 2018-06-15 | 2021-07-28 | Yichang Power Glory Technology Co., Ltd. | Button battery and preparation method therefor |
| CN108550718B (en) * | 2018-06-15 | 2024-01-19 | 宜昌力佳科技有限公司 | Button cell with base |
| CN112670512A (en) * | 2020-12-24 | 2021-04-16 | 新利达电池实业（德庆）有限公司 | Alkaline button cell and positive plate of button cell |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20200328 |