CN201514962U - Battery cap and battery thereof - Google Patents
Battery cap and battery thereof Download PDFInfo
- Publication number
- CN201514962U CN201514962U CN2009202048866U CN200920204886U CN201514962U CN 201514962 U CN201514962 U CN 201514962U CN 2009202048866 U CN2009202048866 U CN 2009202048866U CN 200920204886 U CN200920204886 U CN 200920204886U CN 201514962 U CN201514962 U CN 201514962U
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- China
- Prior art keywords
- battery
- cap
- explosion
- utility
- model
- 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.)
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a battery cap which comprises an upper cap, an anti-explosion ball and a bottom cap, wherein the anti-explosion ball is positioned in a space formed by the upper cap and the bottom cap; the upper cap is fixedly connected with the bottom cap; and the bottom cap is provided with a thin wall part corresponding to the anti-explosion ball. The utility model also provides a battery which comprises the battery cap, a battery case, a cell and electrolyte, wherein the battery cap consists of the upper cap, the anti-explosion ball and the bottom cap, wherein the bottom cap is provided with the thin wall part corresponding to the anti-explosion ball. As for the battery, the bottom cap is provided with the thin wall part corresponding to the anti-explosion ball, therefore, when internal pressure of the battery is rapidly increased to the burst limit point of a safety anti-explosion film, the thin wall part is broken through by the internal pressure of the battery, and the accumulated gas is discharged instantly, thus guaranteeing the safety of the battery; and the thin wall part is arranged, therefore, the battery does not leak liquid, and the reject ratio of the battery is improved.
Description
Technical field
The utility model belongs to field of batteries, relates in particular to a kind of battery cap and battery thereof.
Background technology
Along with the development of society, people increase day by day to portable lightweight electronic product demand, and alkaline secondary cell has obtained application more and more widely as its main stand-by power supply.
Alkaline secondary cell such as ni-mh, nickel-cadmium cell, generally form vortex-like pole piece through reeling by positive plate, negative plate and the interval barrier film between positive plate and negative plate, in the steel circular cylindrical of packing into or the rectangular cell housing, a certain amount of electrolyte of annotating, the KOH aqueous solution as 30% mass concentration, with of the oral area sealing of positive pole block, make battery with battery container.
At present, existing battery cap complex structure, the structure that many battery caps adopt is to go up cap+explosion-proof ball+bottom assembly, among production process, battery is made flow process: volume battery-put face pad-jet-bedding to put the oil-fluid injection-discharge pond block-spot welding block-by cap-seal etc., the different generations of the explosion-proof ball compression ratio height defective phenomenons of withstand voltages of blocking a shot after the spot welding.Make particularly that charging changes into behind the finished product battery, leakage can appear in partial volume, analyzing reason is that the block withstand voltage causes leakage mostly, seriously also can battery explosion.
Summary of the invention
The common batteries charging changes into the utility model, the leakage technical problem can appear in partial volume, and a kind of new battery cap and battery thereof are provided in order to solve.
A kind of battery cap that the utility model provides, this battery cap comprises cap, explosion-proof ball and bottom, in the formed space, fixedly connected with bottom by last cap between last cap and bottom for explosion-proof ball, and described bottom is provided with and the corresponding thinner wall section of explosion-proof ball.
A kind of battery that the utility model provides, this battery comprises battery cap, battery container and is sealed in battery container interior pole piece and electrolyte, described pole piece comprises positive plate, negative plate and the interval barrier film between positive plate and negative plate, wherein, described battery cap comprises cap, explosion-proof ball and bottom, in the formed space, fixedly connected with bottom by last cap between last cap and bottom for explosion-proof ball, and described bottom is provided with and the corresponding thinner wall section of explosion-proof ball.
A kind of battery that the utility model provides is provided with and the corresponding thinner wall section of explosion-proof ball by described bottom, when inner pressure of battery sharply increases, when reaching the compressive yield strength of safety anti-explosive film; thinner wall section is broken through by inner pressure of battery; moment is discharged the gas that gathers; guarantee the security performance of battery, and thinner wall section must be provided with and make it can not cause battery leakage, improved the fraction defective of battery.
Description of drawings
Fig. 1 be the battery cap that provides of prior art partly cut open structural representation;
Fig. 2 be a kind of battery cap of providing of the utility model partly cut open structural representation;
Fig. 3 is the perspective view of the battery cap that provides of the utility model;
Fig. 4 is the cut-away view of the battery cap that provides of the utility model;
Fig. 5 be a kind of battery of providing of the utility model partly cut open structural representation;
Fig. 6 is embodiment and the Comparative Examples product fraction defective comparison diagram that the utility model provides.
In the accompanying drawing: the last cap of 1-, 2-explosion-proof ball, 3-bottom, 4-thinner wall section, 5-battery container.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of battery cap of the present utility model, shown in Figure 2, this battery cap comprises cap 1, explosion-proof ball 2 and bottom 3, and explosion-proof ball 2 is between last cap 1 and bottom 3 in the formed space, last cap 1 is fixedlyed connected with bottom 3, and described bottom 3 is provided with and explosion-proof ball 2 corresponding thinner wall section 4.
Because the too thick effect that does not reach requirement of thinner wall section 4, too thinly also can influence properties of product, so the thickness of described thinner wall section 4 is 1%～10% of bottom 3 gross thickness, preferably the thickness of thinner wall section 4 is 5% of bottom 3 gross thickness.
As shown in Figure 2, the described explosion-proof ball 2 general highly elastic materials such as Ethylene Propylene Terpolymer or acrylonitrile-butadiene rubber that adopt, explosion-proof ball 2 can be spherical, cylindrical or square column type, when described explosion-proof ball 2 is a catercorner length with the interior circular diameter of anodal block equates square column type, on each side of square column type explosion-proof ball 2, all has the open slot (not shown).
A kind of battery that the utility model provides, this battery comprises battery cap, battery container 5 and is sealed in battery container interior pole piece and electrolyte (not shown), described pole piece comprises positive plate (not shown), negative plate (not shown) and the interval barrier film (not shown) between positive plate and negative plate, wherein, described battery cap comprises cap 1, explosion-proof ball 2 and bottom 3, explosion-proof ball 2 is between last cap 1 and bottom 3 in the formed space, last cap 1 is fixedlyed connected with bottom 3, and described bottom 3 is provided with and explosion-proof ball 2 corresponding thinner wall section 4.
The battery that the utility model provides comprises battery cap, battery container 5 and is sealed in pole piece and electrolyte (not shown) in the battery container 5 by battery cap, wherein, and the battery cap that described battery cap provides for the utility model.
Battery of the present utility model is because explosion-proof ball 2 sides in the battery cap are provided with the open slot (not shown), increased inner headspace than original battery cap, solve the problem that gas that battery produces and puff can not be discharged fast effectively when short circuit, improved the fail safe of battery, and it is simple in structure, easily manufactured.
A kind of cell manufacturing method of the present utility model: the utility model is an example with ni-mh/nickel-cadmium cell;
Battery cap is made: can adopt various material well known in the art to make, as the steel material; Can determine according to battery size; Battery cap described in the utility model can wholely be made, and it is one-body molded to be used for punching press.
Battery is made:
Make pole piece: produce nickel positive pole, cadmium cathode with general method;
Reel: will produce nickel positive pole, cadmium cathode and barrier film combine, and reel with half-automatic winder and to make pole piece;
Dress shell: in coiling is packed cylinder type nickel plating box hat into;
Put the oil: put the oil with nickel plating box hat jet-bedding and with inwall on the box hat, can make the better tightness of battery like this, and can prevent battery leakage;
Annotate alkali lye: will inject alkali lye in the semi-finished product under the above-mentioned operation;
Discharge pond sealing ring: sealing ring is placed in the battery case;
By blocking a shot: block of the present utility model is pressed in the respective battery;
Seal: battery is sealed with automatic sealing;
Subsequent handling: comprise the charging of battery, detect that packing etc. is finished battery and made.
According to battery provided by the utility model, also comprise other necessary assembly that battery pack is required, and the assembly method of battery pack is conventionally known to one of skill in the art, do not repeat them here.
Embodiment:
The making of battery cap, described battery cap prepares with the integrated method of punching press, and present embodiment adopts the thinner wall section 4 of battery cap to be shaped as " one " shape, going out " one " shape when one-body molded.
Battery is made: combine with general nickel positive pole, cadmium cathode and barrier film, in coiling was packed cylinder type nickel plating box hat into, the positive pole ear of battery was connected with battery cap, and negative lug is connected with battery container, injected alkali lye, follow-up operations such as charging; Adopt above-mentioned battery cap, and the capacity of producing is certain Sc type battery, this battery is designated as A1; Finishing battery makes.
Comparative example:
According to prior art, comparative example adopts general battery cap.
Battery is made: combine with general nickel positive pole, cadmium cathode and barrier film, in coiling is packed cylinder type nickel plating box hat into, inject alkali lye, adopt general battery cap, and the capacity of producing is certain Sc type battery that this battery is remembered A2.
As seen from Figure 6, make 1000 batteries according to same material and method, adopt the finished product fraction defective of the battery A1 of battery cap structure of the present utility model obviously to reduce, because the variation of battery cap structure of the present utility model is provided with like this and has improved battery safety.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. battery cap, this battery cap comprises cap, explosion-proof ball and bottom, and in the formed space, fixedly connected with bottom, it is characterized in that by last cap between last cap and bottom for explosion-proof ball, and described bottom is provided with and the corresponding thinner wall section of explosion-proof ball.
2. battery cap according to claim 1 is characterized in that, the thickness of described thinner wall section is 1%～10% of bottom gross thickness.
3. battery, this battery comprises battery cap, battery container and is sealed in battery container interior pole piece and electrolyte, described pole piece comprises positive plate, negative plate and the interval barrier film between positive plate and negative plate, it is characterized in that described battery cap is any described battery cap among the claim 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202048866U CN201514962U (en) | 2009-09-05 | 2009-09-05 | Battery cap and battery thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202048866U CN201514962U (en) | 2009-09-05 | 2009-09-05 | Battery cap and battery thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514962U true CN201514962U (en) | 2010-06-23 |
Family
ID=42486373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202048866U Expired - Fee Related CN201514962U (en) | 2009-09-05 | 2009-09-05 | Battery cap and battery thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293677A (en) * | 2017-07-04 | 2017-10-24 | 合肥力翔电池科技有限责任公司 | A kind of lithium battery new type explosion proof film |
| CN108790801A (en) * | 2018-06-19 | 2018-11-13 | 北京众信远新能源技术有限公司 | A kind of nonmetallic explosion-proof ball |
-
2009
- 2009-09-05 CN CN2009202048866U patent/CN201514962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293677A (en) * | 2017-07-04 | 2017-10-24 | 合肥力翔电池科技有限责任公司 | A kind of lithium battery new type explosion proof film |
| CN108790801A (en) * | 2018-06-19 | 2018-11-13 | 北京众信远新能源技术有限公司 | A kind of nonmetallic explosion-proof ball |
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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: 20100623 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |