CN103022387A - Explosion protection structure for cover plate of lithium battery - Google Patents
Explosion protection structure for cover plate of lithium battery Download PDFInfo
- Publication number
- CN103022387A CN103022387A CN2012105020498A CN201210502049A CN103022387A CN 103022387 A CN103022387 A CN 103022387A CN 2012105020498 A CN2012105020498 A CN 2012105020498A CN 201210502049 A CN201210502049 A CN 201210502049A CN 103022387 A CN103022387 A CN 103022387A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- lithium battery
- cutting
- battery
- protection structure
- 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
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Classifications
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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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses an explosion protection structure for a cover plate of a lithium battery, belonging to the technical field of lithium batteries. According to the explosion protection structure for the cover plate of the lithium battery, the cover plate is provided with an annular notch groove, straight notch grooves intersecting with the annular notch groove are formed within the annular notch groove of the cover plate, and the annular notch groove and the straight notch grooves are formed through die stamping. The explosion protection structure for the cover plate of the lithium battery has the beneficial effects that a rupture location is relatively fixed, so that the leakage discharging direction can be controlled, and the battery design is more facilitated; and during leakage discharging, the area of a rupture opening is enlarged, the leakage discharging is facilitated, and the safety of the battery can be improved when the battery is subjected to leakage.
Description
Technical field
The present invention relates to a kind of blast resistance construction of lithium battery battery cover plate, belong to technical field of lithium batteries.
Background technology
Current lithium battery cover plate mainly leans on the sheet metal of specific thicknesses, or cutting on sheet metal, makes other places of its strength ratio low, and when cell internal pressure increased, pressure can be revealed by preferential tear in the position that intensity is lower, reaches explosion-proof purpose.Usually annular or radiation are selected in the cutting meeting on sheet metal.When loop configuration was broken, it was larger to reveal area, but the position is unfixing, all might break in any position of annular, was unfavorable for controlling the discharge direction of revealing thing; During the radiation structure breaking, generally at the intersection preferential tear, but after pressure reduced, rent was not easy to enlarge, and made that to reveal area less.
Summary of the invention
It is large to reveal area when technical problem to be solved by this invention is to provide a kind of popping for above the deficiencies in the prior art, and the position is relatively fixing, is conducive to control the discharge direction of leakage.
The present invention is achieved by the following technical solutions: a kind of blast resistance construction of lithium battery battery cover plate, cover plate is provided with annular cutting, the cutting of cover plate annular is provided with the straight cutting that therewith annular cutting is intersected with interior part, and described annular cutting has mould punching to form with straight cutting.
Further, the direction of described straight cutting is annular cutting inter normal direction.
Further, the quantity of described straight cutting is at least 1.
The invention has the beneficial effects as follows: rupture location is relatively fixing, can control the direction that leakage is discharged, the battery design of being more convenient for; In the leakage discharge process, the breach enlarged areas is conducive to leakage discharges, the fail safe in the time of can improving battery generation leakage.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is explained in detail, blast resistance construction in conjunction with Fig. 1, a kind of lithium battery battery cover plate, cover plate 1 is provided with annular cutting 2, the cutting of cover plate annular is provided with the straight cutting 3 that therewith annular cutting is intersected with interior part, and the direction of described straight cutting 3 is annular cutting 2 inter normal directions.Described annular cutting 2 and straight cutting 1 are formed by mould punching, by increasing the requirements such as cutting quantity, the degree of depth, position, length when the Design of Dies, when Mold Making, realize, with this mould punching, can obtain this new blast resistance construction, the quantity of described straight cutting is at least 1.
The above person is preferred embodiment of the present invention only, is not to limit practical range of the present invention, and namely all equalizations of doing according to the present invention change and modify, and are all claim scope of the present invention and contain, and give an example no longer one by one here.
Claims (3)
1. the blast resistance construction of a lithium battery battery cover plate, it is characterized in that: cover plate is provided with annular cutting, and the cutting of cover plate annular is provided with the straight cutting that therewith annular cutting is intersected with interior part, and described annular cutting is formed by mould punching with straight cutting.
2. the blast resistance construction of lithium battery battery plate according to claim 1, it is characterized in that: the direction of described straight cutting is annular cutting inter normal direction.
3. the blast resistance construction of lithium battery battery plate according to claim 1, it is characterized in that: the quantity of described straight cutting is at least 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105020498A CN103022387A (en) | 2012-11-30 | 2012-11-30 | Explosion protection structure for cover plate of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105020498A CN103022387A (en) | 2012-11-30 | 2012-11-30 | Explosion protection structure for cover plate of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103022387A true CN103022387A (en) | 2013-04-03 |
Family
ID=47970720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105020498A Pending CN103022387A (en) | 2012-11-30 | 2012-11-30 | Explosion protection structure for cover plate of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103022387A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305936A (en) * | 2016-04-25 | 2017-10-31 | 三星Sdi株式会社 | Secondary cell |
| CN108847500A (en) * | 2018-05-11 | 2018-11-20 | 南阳市龙润装备制造有限公司 | A kind of preparation method of battery anti-explosion piece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752517A (en) * | 2008-12-01 | 2010-06-23 | 三星Sdi株式会社 | Cover component and secondary battery having the same |
| CN102201558A (en) * | 2010-03-26 | 2011-09-28 | 瑞青企业股份有限公司 | Safety relief valve of lithium battery cover body and manufacturing method of same |
| CN202940282U (en) * | 2012-11-30 | 2013-05-15 | 山东润峰集团新能源科技有限公司 | Anti-explosion structure for cover plate of lithium battery |
-
2012
- 2012-11-30 CN CN2012105020498A patent/CN103022387A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752517A (en) * | 2008-12-01 | 2010-06-23 | 三星Sdi株式会社 | Cover component and secondary battery having the same |
| CN102201558A (en) * | 2010-03-26 | 2011-09-28 | 瑞青企业股份有限公司 | Safety relief valve of lithium battery cover body and manufacturing method of same |
| CN202940282U (en) * | 2012-11-30 | 2013-05-15 | 山东润峰集团新能源科技有限公司 | Anti-explosion structure for cover plate of lithium battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305936A (en) * | 2016-04-25 | 2017-10-31 | 三星Sdi株式会社 | Secondary cell |
| CN107305936B (en) * | 2016-04-25 | 2022-04-29 | 三星Sdi株式会社 | Secondary battery |
| CN108847500A (en) * | 2018-05-11 | 2018-11-20 | 南阳市龙润装备制造有限公司 | A kind of preparation method of battery anti-explosion piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |