CN103367809A - Explosion-proof battery - Google Patents
Explosion-proof battery Download PDFInfo
- Publication number
- CN103367809A CN103367809A CN2012100815681A CN201210081568A CN103367809A CN 103367809 A CN103367809 A CN 103367809A CN 2012100815681 A CN2012100815681 A CN 2012100815681A CN 201210081568 A CN201210081568 A CN 201210081568A CN 103367809 A CN103367809 A CN 103367809A
- Authority
- CN
- China
- Prior art keywords
- explosion
- plate shaped
- battery core
- shaped battery
- flexible package
- 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
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The invention relates to an explosion-proof battery which comprises a plate-type battery cell, wherein an anode component and a cathode component are connected to the plate-type battery cell, and the plate-type battery cell is wrapped with a flexible package. The explosion-proof battery is characterized in that a clearance greater than or equal 2 mm(millimeter) is reserved between the fringe of the electrode film group or electrode film coil of the plate-type battery cell and the inner fringe of the most external encapsulation edge of the flexible package, and the clearance forms an explosion-proof region. Or a clearance greater than or equal 2 mm(millimeter) is reserved between the fringe of electrode film group or electrode film coil of the plate-type battery cell and the inner fringe of the most marginal intracavity which is formed by the upper and lower surfaces of the flexible package, so that the clearance forms the explosion-proof region. Therefore, due to the existence of the explosion-proof region, after the plate-type battery cell is subjected to tympanites, a favorable pressure relief space can be provided, and meanwhile the explosion-proof battery provided by the invention has the advantages of simple construction, and easiness for popularization.
Description
Technical field
The present invention relates to a kind of battery, relate in particular to a kind of anti-explosion battery.
Background technology
Lithium ion battery is a kind of rechargeable battery, and it mainly relies on lithium ion to move work between positive pole and negative pole.In charge and discharge process, Li+ comes and goes embedding and takes off embedding between two electrodes: during rechargable battery, Li+ takes off embedding from positive pole, embeds negative pole through electrolyte, and negative pole is in rich lithium state; Then opposite during discharge.The general employing contained the material of elemental lithium as the battery of electrode.It is the representative of modern high performance battery.
But existing Li ion cells unit lacks necessary security component, in case expanding appears in battery, does not have effective pressure release space, causes the excessive appearance blast of battery pressurized.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of anti-explosion battery is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of anti-explosion battery, include plate shaped battery core, be connected with anodal assembly and negative pole assembly on the described plate shaped battery core, described plate shaped battery core is wrapped with flexible package, it is characterized in that: be provided with the gap more than or equal to 2 millimeters between the inward flange on the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package outermost encapsulation limit, described gap consists of explosion-proof area; Or, being provided with the gap more than or equal to 2 millimeters between the inward flange of the inner chamber at the edge that the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package top and bottom form, described gap consists of explosion-proof area.
Further, above-mentioned a kind of anti-explosion battery, wherein: described flexible package is plastic-aluminum combined membrane type flexible package.
Further, above-mentioned a kind of anti-explosion battery, wherein: the distance between the inward flange on the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package outermost encapsulation limit is 2 to 300 millimeters; Or the distance between the inward flange of the inner chamber at the edge that the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package top and bottom form is 2 to 300 millimeters.
Further, above-mentioned a kind of anti-explosion battery, wherein: the normality of described explosion-proof area is vacuum.
Again further, above-mentioned a kind of anti-explosion battery, wherein: described explosion-proof area is distributed in a side of plate shaped battery core; Or described explosion-proof area is distributed symmetrically the up and down both sides in plate shaped battery core; Or described explosion-proof area is distributed symmetrically the left and right sides in plate shaped battery core; Or, described explosion-proof area be distributed in plate shaped battery core around; Or described explosion-proof area is distributed in anodal assembly one side; Or described explosion-proof area is distributed in negative pole assembly one side.
The advantage of technical solution of the present invention is mainly reflected in: rely on the existence of explosion-proof area, can give after bulging appears in plate shaped battery core and better pressure release space.Simultaneously, simple structure of the present invention is easy to realize promoting.
Description of drawings
Purpose of the present invention, advantage and disadvantage will be for illustration and explanation by the non-limitative illustration of following preferred embodiment.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.
Fig. 1 is the organigram of this anti-explosion battery; Fig. 2 is that explosion-proof area is distributed in the up and down organigram at two ends of plate shaped battery core; Fig. 3 is the organigram that explosion-proof area is distributed in plate shaped battery core both sides; The explosion-proof area that Fig. 4 is is distributed in the organigram around the plate shaped battery core.
Embodiment
A kind of anti-explosion battery shown in Fig. 1-4, include plate shaped battery core 1, be connected with anodal assembly 3 and negative pole assembly 4 on this plate shaped battery core 1, this plate shaped battery core 1 is wrapped with flexible package, its unusual part is: be provided with the gap more than or equal to 2 millimeters between the inward flange on the pole piece group of plate shaped battery core 1 of the present invention or the edge of pole piece roll and flexible package outermost encapsulation limit, this gap consists of explosion-proof area.In case battery occurs unusual, the gas of bulging can directly enter explosion-proof area.
Or, being provided with the gap more than or equal to 2 millimeters between the inward flange of the inner chamber at the edge that the pole piece group of plate shaped battery core 1 or the edge of pole piece roll and flexible package top and bottom form, described gap consists of explosion-proof area.Like this, when battery was unusual, the gas of bulging can enter explosion-proof area by that inner chamber on encapsulating while entering.
With regard to the better execution mode of the present invention one, consider and to carry out more perfect holding to the plate shaped battery core 1 that occurs after the bulging that prevent explosion, the distance in the utmost point group edge of plate shaped battery core 1 and the flexible package between the cavity edge is 2 to 300 millimeters.Same, also can be the pole piece group of plate shaped battery core 1 or the edge of pole piece roll with the inward flange of the inner chamber at the edge of flexible package top and bottom formation between distance be 2 to 300 millimeters.Like this, can provide for the plate shaped battery core 1 of different size the properest safety anti-explosive space.And flexible package is plastic-aluminum combined membrane type flexible package, improves carrying capacity.
Further, in order to improve the utilance in space, the while can give the plate shaped battery core 1 more gas spatial accommodation after the bulging, and the normality that the explosion-proof area 2 that the present invention adopts is is vacuum.Like this, can avoid the shared volume of air excessive, affect follow-up explosion-proof effect.
Again further, consider to promote explosion-proof effect that explosion-proof area 2 of the present invention is distributed in a side of plate shaped battery core 1.Certainly, in order to improve the effect of bulging pressure release, explosion-proof area 2 also can be distributed symmetrically the up and down both sides in plate shaped battery core 1.And, consider to have better pressure release effect that explosion-proof area 2 distributes also can the symmetrical left and right sides in plate shaped battery core 1.Moreover, can make explosion-proof area 2 be distributed in plate shaped battery core 1 around, realize omnibearing pressure release.Consider the needs of use occasion, also described explosion-proof area can be distributed in anodal assembly one side; Or explosion-proof area is distributed in negative pole assembly one side.
Can find out by above-mentioned character express, adopt the present invention after, rely on the existence of explosion-proof area, can after bulging appears in plate shaped battery core, give and better pressure release space.Simultaneously, simple structure of the present invention is easy to realize promoting.
Can in time realize the safety relief to lithium ion battery, promote the safe coefficient of using.And, simple structure of the present invention, low cost of manufacture is easy to promote.
Claims (5)
1. anti-explosion battery, include plate shaped battery core, be connected with anodal assembly and negative pole assembly on the described plate shaped battery core, described plate shaped battery core is wrapped with flexible package, it is characterized in that: be provided with the gap more than or equal to 2 millimeters between the inward flange on the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package outermost encapsulation limit, described gap consists of explosion-proof area; Or, being provided with the gap more than or equal to 2 millimeters between the inward flange of the inner chamber at the edge that the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package top and bottom form, described gap consists of explosion-proof area.
2. a kind of anti-explosion battery according to claim 1, it is characterized in that: described flexible package is plastic-aluminum combined membrane type flexible package.
3. a kind of anti-explosion battery according to claim 1 is characterized in that: the distance between the inward flange on the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package outermost encapsulation limit is 2 to 300 millimeters; Or the distance between the inward flange of the inner chamber at the edge that the pole piece group of described plate shaped battery core or the edge of pole piece roll and flexible package top and bottom form is 2 to 300 millimeters.
4. a kind of anti-explosion battery according to claim 1, it is characterized in that: the normality of described explosion-proof area is vacuum.
5. a kind of anti-explosion battery according to claim 1, it is characterized in that: described explosion-proof area is distributed in a side of plate shaped battery core; Or described explosion-proof area is distributed symmetrically the up and down both sides in plate shaped battery core; Or described explosion-proof area is distributed symmetrically the left and right sides in plate shaped battery core; Or, described explosion-proof area be distributed in plate shaped battery core around; Or described explosion-proof area is distributed in anodal assembly one side; Or described explosion-proof area is distributed in negative pole assembly one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100815681A CN103367809A (en) | 2012-03-26 | 2012-03-26 | Explosion-proof battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100815681A CN103367809A (en) | 2012-03-26 | 2012-03-26 | Explosion-proof battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103367809A true CN103367809A (en) | 2013-10-23 |
Family
ID=49368665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100815681A Pending CN103367809A (en) | 2012-03-26 | 2012-03-26 | Explosion-proof battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103367809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634166A (en) * | 2017-10-19 | 2018-01-26 | 广东欧珀移动通信有限公司 | A kind of packaging film of polymer battery, polymer battery and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057190A (en) * | 1999-08-18 | 2001-02-27 | Matsushita Electric Ind Co Ltd | Battery pack |
| CN1398012A (en) * | 2001-07-13 | 2003-02-19 | 比亚迪股份有限公司 | Method for manufacturing thin lithium ion battery |
| CN1487613A (en) * | 2002-08-20 | 2004-04-07 | ����Sdi��ʽ���� | Bag type secondary battery with safety air exhaust port |
-
2012
- 2012-03-26 CN CN2012100815681A patent/CN103367809A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057190A (en) * | 1999-08-18 | 2001-02-27 | Matsushita Electric Ind Co Ltd | Battery pack |
| CN1398012A (en) * | 2001-07-13 | 2003-02-19 | 比亚迪股份有限公司 | Method for manufacturing thin lithium ion battery |
| CN1487613A (en) * | 2002-08-20 | 2004-04-07 | ����Sdi��ʽ���� | Bag type secondary battery with safety air exhaust port |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634166A (en) * | 2017-10-19 | 2018-01-26 | 广东欧珀移动通信有限公司 | A kind of packaging film of polymer battery, polymer battery and electronic equipment |
| CN107634166B (en) * | 2017-10-19 | 2023-11-21 | Oppo广东移动通信有限公司 | Packaging film of polymer battery, polymer battery and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102683752B (en) | Stacked lithium ion power battery and manufacturing method thereof | |
| CN105633333B (en) | A kind of lithium ion cylinder structure battery and preparation method thereof | |
| CN106299481A (en) | A kind of soft bag lithium ionic cell encapsulation, drawing liquid forming method | |
| CN203367442U (en) | High-capacity 6-DZM-20Ah lead-acid battery | |
| US20150140412A1 (en) | Soft-packaged lithium-ion battery | |
| KR20160023035A (en) | A battery cell of vertical stacking structure | |
| CN103367809A (en) | Explosion-proof battery | |
| CN103762387A (en) | Method for preparing coiled polymer lithium battery and coiled polymer lithium battery | |
| CN103199297A (en) | Pressure release type safe lithium battery | |
| CN202503086U (en) | Pressure releasing type secure lithium battery | |
| CN209434340U (en) | The device of battery unit and the battery case for manufacturing battery unit | |
| CN202395055U (en) | Lithium ion battery with explosion-proof device | |
| CN202159732U (en) | Positive plate and battery | |
| CN202737046U (en) | Anti-explosion battery | |
| CN205376601U (en) | Battery module | |
| CN203644889U (en) | Novel laminated lithium ion battery | |
| CN203367419U (en) | Wound electrode plate and lithium ion battery formed by winding same | |
| CN201927677U (en) | Internal series connection type lithium battery | |
| CN202058814U (en) | Circular lithium ion battery | |
| CN205452418U (en) | Lithium ion cylinder structure battery | |
| CN205319235U (en) | Group battery of button cell combination | |
| CN204706609U (en) | A kind of cylindrical aluminum hull girdles the waist sealing positive and negative electrodes in same to the lithium ion battery of drawing | |
| CN205488242U (en) | Titanium acid lithium ion battery | |
| CN103840217B (en) | A kind of cylindrical flexible package lithium titanate battery | |
| CN204067499U (en) | square lithium ion power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |