CN102403467A - Anti-explosion secondary battery - Google Patents
Anti-explosion secondary battery Download PDFInfo
- Publication number
- CN102403467A CN102403467A CN2011103551549A CN201110355154A CN102403467A CN 102403467 A CN102403467 A CN 102403467A CN 2011103551549 A CN2011103551549 A CN 2011103551549A CN 201110355154 A CN201110355154 A CN 201110355154A CN 102403467 A CN102403467 A CN 102403467A
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- China
- Prior art keywords
- screen pack
- explosion
- secondary cell
- positive electrode
- proof secondary
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses an anti-explosion secondary battery which comprises a shell, an electric core arranged in the shell, an anode cap arranged at an opening of the shell, a sealing ring sleeved on the edge of the anode cap, and a filter net arranged between the anode cap and the electric core. The anti-explosion secondary battery can effectively prevent an air hole of the anode cap from being blocked by a lug, a surface patch or active material and the like through the filter net arranged between the anode cap and the electric core, and is convenient for exhausting inside gas smoothly from an exhaust hole, thus pressure of the inside gas is reduced, and explosion is avoided.
Description
[technical field]
The present invention relates to the energy storage device field, relate in particular to a kind of explosion-proof secondary cell.
[background technology]
Traditional circular secondary cell is burnt process at battery and can be taken place because of the too high situation that causes battery explosion of internal pressure.Studying carefully the reason of its blast, mainly is because internal gas is discharged untimely.The positive electrode cap steam vent is plugged, and is to cause the untimely major reason of internal gas discharge.
[summary of the invention]
Based on this, be necessary to provide a kind of explosion-proof secondary cell with explosion prevention function.
A kind of explosion-proof secondary cell comprises: housing, be arranged on electric core in the said housing, be arranged on the opening part of said housing positive electrode cap, be set in the sealing ring at said positive electrode cap edge and be arranged on said positive electrode cap and said electric core between screen pack.
Preferably, said screen pack is a concave structure, and the concave surface of said screen pack is away from said positive electrode cap.
Preferably, the material of said screen pack is the metal with toughness and alkali corrosion resistance, and said screen pack can not be out of shape under the pressure of 3MPa.
Preferably, the whole height of said screen pack is at 0.01mm～5mm.
Preferably, the hole of said screen pack evenly distributes or non-uniform Distribution.
Preferably, the hole of said screen pack is circle, ellipse or polygon.
Preferably, the hole size of said screen pack is from 0.001cm
2～1cm
2
Preferably, the number in the hole of said screen pack is 1～500.
Preferably, the distance at the edge in adjacent two holes in the said screen pack is between 0.01mm～5mm.
Preferably, also comprise lug; One end of said lug is fixed on the said screen pack, and the other end of said lug is electrically connected with said electric core; Said screen pack is fixed on the said positive electrode cap.
This explosion-proof secondary cell; Through being arranged on the screen pack between positive electrode cap and the electric core, can prevent effectively that the pore of positive electrode cap from being blocked by lug, dough sheet or active material etc., be convenient to internal gas discharge from steam vent smoothly; Reduce internal gas pressure, avoid the generation of exploding.
[description of drawings]
Fig. 1 is the sketch map of the explosion-proof secondary cell of an execution mode;
Fig. 2 shows the part-structure sketch map of the section of explosion-proof secondary cell for Fig. 1;
Fig. 3 shows the generalized section of the part-structure of explosion-proof secondary cell for Fig. 1;
Fig. 4 shows the structural representation of the screen pack of explosion-proof secondary cell for Fig. 1.
[embodiment]
Below in conjunction with accompanying drawing and embodiment explosion-proof secondary cell is done further description.
Explosion-proof secondary cell 100 like Fig. 1, Fig. 2 and an execution mode shown in Figure 3 comprises: housing 110, be arranged on electric core 120 in the housing 110, be arranged on the opening part of housing 110 positive electrode cap 130, be set in positive electrode cap 130 edges sealing ring 140, be arranged on screen pack 150 and lug 160 between positive electrode cap 130 and the electric core 120.
The opening part of housing 110 is provided with the circular extended structure 112 that covers lower cover 132 edges and sealing ring 140, and extended structure 112 is extended to form by the plane, opening place of housing 110 along housing 110.
Positive electrode cap 130 comprises the lower cover 132 adaptive with housing 110, is fixed on the loam cake 134 on the lower cover 132 and is positioned at loam cake 132 and the explosion-proof ball 138 of the accommodation space 136 that lower cover 134 forms.
In conjunction with Fig. 4, screen pack 150 is a concave structure, and the concave surface of screen pack 150 enlarges the space between screen pack 150 and the lower cover 132 away from lower cover 132.
The material of screen pack 150 is the metal with toughness, and screen pack 150 can not be out of shape under the pressure of 3MPa.
Concrete, the material of screen pack 150 can be steel such as stainless steel, wolfram steel, Bai Gang.Preferred alkali resistance preferred metal perhaps plates the coating that one deck has fine corrosion proof function in these metal surfaces, like nickel coating.
The shape of screen pack 150 can be polygons such as circle, ellipse, triangle, quadrangle.
The whole height of screen pack 150 is at 0.01mm～5mm.
The hole of screen pack 150 evenly distributes or non-uniform Distribution.
The hole of screen pack 150 is circle, ellipse or polygon.
The hole size of screen pack 150 is from 0.001cm
2～1cm
2The hole will have the size of appropriateness, can guarantee that the active material of pulverous solid particle (particle diameter is less than 2mm) passes through smoothly, can guarantee again can not pass through after the foaming of barrier film and sealing ring.
The distance at the edge in adjacent two holes is 0.01mm～5mm in the hole of screen pack 150.Distance is preferably 0.2mm～1mm.This distance value can guarantee that screen pack has suitable intensity, can guarantee on whole screen pack, to have the hole of relative majority amount again.
The number in the hole of screen pack 150 is 1～500.
This explosion-proof secondary cell; Through being arranged on the screen pack 150 between positive electrode cap 130 and the electric core 120; Can prevent effectively that positive electrode cap 130 pores from being blocked by lug 160, dough sheet or active material etc.; Be convenient to internal gas and discharge from steam vent smoothly, reduce internal gas pressure, avoid the generation of exploding.
This explosion-proof secondary cell can be ni-mh, nickel zinc, NI-G, the isostructural secondary cell of lithium ion.
The above embodiment has only expressed one or more execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. explosion-proof secondary cell; It is characterized in that, comprising: housing, be arranged on electric core in the said housing, be arranged on the opening part of said housing positive electrode cap, be set in the sealing ring at said positive electrode cap edge and be arranged on said positive electrode cap and said electric core between screen pack.
2. explosion-proof secondary cell as claimed in claim 1 is characterized in that, said screen pack is a concave structure, and the concave surface of said screen pack is away from said positive electrode cap.
3. explosion-proof secondary cell as claimed in claim 1 is characterized in that, the material of said screen pack is the metal with toughness and alkali corrosion resistance, and said screen pack can not be out of shape under the pressure of 3MPa.
4. explosion-proof secondary cell as claimed in claim 1 is characterized in that the whole height of said screen pack is at 0.01mm～5mm.
5. explosion-proof secondary cell as claimed in claim 1 is characterized in that, the hole of said screen pack evenly distributes or non-uniform Distribution.
6. explosion-proof secondary cell as claimed in claim 1 is characterized in that, the hole of said screen pack is circle, ellipse or polygon.
7. explosion-proof secondary cell as claimed in claim 1 is characterized in that the hole size of said screen pack is from 0.001cm
2～1cm
2
8. explosion-proof secondary cell as claimed in claim 1 is characterized in that, the number in the hole of said screen pack is 1～500.
9. explosion-proof secondary cell as claimed in claim 1 is characterized in that, the distance at the edge in adjacent two holes in the said screen pack is between 0.01mm～5mm.
10. like each described explosion-proof secondary cell in the claim 1～9, it is characterized in that, also comprise lug; One end of said lug is fixed on the said screen pack, and the other end of said lug is electrically connected with said electric core; Said screen pack is fixed on the said positive electrode cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110355154.9A CN102403467B (en) | 2011-11-10 | 2011-11-10 | Anti-explosion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110355154.9A CN102403467B (en) | 2011-11-10 | 2011-11-10 | Anti-explosion secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102403467A true CN102403467A (en) | 2012-04-04 |
| CN102403467B CN102403467B (en) | 2014-08-27 |
Family
ID=45885453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110355154.9A Active CN102403467B (en) | 2011-11-10 | 2011-11-10 | Anti-explosion secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102403467B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474599A (en) * | 2013-09-15 | 2013-12-25 | 宁德新能源科技有限公司 | Lithium ion battery with ideal safety performance and battery pack |
| EP2879203A1 (en) * | 2013-11-27 | 2015-06-03 | Samsung SDI Co., Ltd. | Secondary battery |
| CN109301104A (en) * | 2018-10-29 | 2019-02-01 | 湖南科霸汽车动力电池有限责任公司 | Cylindrical battery nut cap combination and column secondary battery |
| CN112385075A (en) * | 2018-08-08 | 2021-02-19 | 杜拉塞尔美国经营公司 | Battery with vent |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491370A (en) * | 1946-06-21 | 1949-12-13 | Bell Telephone Labor Inc | Explosion-proof vent plug for storage batteries |
| JPS63170848A (en) * | 1987-01-09 | 1988-07-14 | Matsushita Electric Ind Co Ltd | Enclosed type lead storage battery |
| JPH0896786A (en) * | 1994-09-21 | 1996-04-12 | Matsushita Electric Ind Co Ltd | Lead-acid battery |
| JPH08102310A (en) * | 1994-09-30 | 1996-04-16 | Shin Kobe Electric Mach Co Ltd | Vent plug for lead-acid battery |
| JP3502139B2 (en) * | 1994-01-31 | 2004-03-02 | 松下電器産業株式会社 | Automotive lead-acid battery |
| CN1632967A (en) * | 2003-12-22 | 2005-06-29 | 深圳华粤宝电池有限公司 | Lithium battery combined cover plate and lithium battery comprising the same |
| CN1866581A (en) * | 2005-05-16 | 2006-11-22 | 松下电器产业株式会社 | Sealed rechargeable battery and manufacturing method of the same |
-
2011
- 2011-11-10 CN CN201110355154.9A patent/CN102403467B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491370A (en) * | 1946-06-21 | 1949-12-13 | Bell Telephone Labor Inc | Explosion-proof vent plug for storage batteries |
| JPS63170848A (en) * | 1987-01-09 | 1988-07-14 | Matsushita Electric Ind Co Ltd | Enclosed type lead storage battery |
| JP3502139B2 (en) * | 1994-01-31 | 2004-03-02 | 松下電器産業株式会社 | Automotive lead-acid battery |
| JPH0896786A (en) * | 1994-09-21 | 1996-04-12 | Matsushita Electric Ind Co Ltd | Lead-acid battery |
| JPH08102310A (en) * | 1994-09-30 | 1996-04-16 | Shin Kobe Electric Mach Co Ltd | Vent plug for lead-acid battery |
| CN1632967A (en) * | 2003-12-22 | 2005-06-29 | 深圳华粤宝电池有限公司 | Lithium battery combined cover plate and lithium battery comprising the same |
| CN1866581A (en) * | 2005-05-16 | 2006-11-22 | 松下电器产业株式会社 | Sealed rechargeable battery and manufacturing method of the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474599A (en) * | 2013-09-15 | 2013-12-25 | 宁德新能源科技有限公司 | Lithium ion battery with ideal safety performance and battery pack |
| EP2849257A1 (en) * | 2013-09-15 | 2015-03-18 | NingDe Amperex Technology Limited | Lithium ion battery having desirable safety performance |
| EP2879203A1 (en) * | 2013-11-27 | 2015-06-03 | Samsung SDI Co., Ltd. | Secondary battery |
| US9735408B2 (en) | 2013-11-27 | 2017-08-15 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN112385075A (en) * | 2018-08-08 | 2021-02-19 | 杜拉塞尔美国经营公司 | Battery with vent |
| CN109301104A (en) * | 2018-10-29 | 2019-02-01 | 湖南科霸汽车动力电池有限责任公司 | Cylindrical battery nut cap combination and column secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102403467B (en) | 2014-08-27 |
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Address after: 518111 Building 1, 68 Xinxia Avenue, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen haopeng Technology Co.,Ltd. Address before: 518111 building A2, Luoshan Industrial Zone, Shanxia, Pinghu Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAOPENG TECHNOLOGY Co.,Ltd. |