CN206134742U - Lithium ion battery cover plate and use lithium ion battery of this apron - Google Patents
Lithium ion battery cover plate and use lithium ion battery of this apron Download PDFInfo
- Publication number
- CN206134742U CN206134742U CN201621086811.9U CN201621086811U CN206134742U CN 206134742 U CN206134742 U CN 206134742U CN 201621086811 U CN201621086811 U CN 201621086811U CN 206134742 U CN206134742 U CN 206134742U
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- CN
- China
- Prior art keywords
- cover board
- lithium ion
- ion battery
- board body
- pressure relief
- 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.)
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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 relates to a lithium ion battery cover plate and use lithium ion battery of this apron, a lithium ion battery cover plate includes the apron body, integrated into one piece has the pressure release board on the apron body, is equipped with the weakening groove on the pressure release board, weakens the groove and includes that one is followed that circumference is extended or follows the weakening groove section that circumference distributes more than two. With pressure release board and apron body integrated into one piece, production processes is few, and is with low costs, and sealing performance is reliable, is equipped with on the pressure release board to weaken the groove and be convenient for easily break through when the battery internal pressure grow and carry out the pressure release.
Description
Technical field
This utility model belong to lithium ion battery manufacture field, and in particular to a kind of lithium ion battery cover board and use the lithium
The lithium ion battery of ion battery cover plate.
Background technology
Lithium ion battery has the advantages that specific energy is high, recycle often, storage time it is long, not only in portable electric
As being used widely in mobile phone, digital camera and laptop computer on sub- equipment, with the development of lithium ion battery technology
It is increasingly mature, electric automobile, UPS（Uninterrupted power source）, the industry such as energy-accumulating power station the demand of lithium ion battery is also gradually increased,
But, its capacity is bigger, and charge-discharge magnification is higher, also bigger for the challenge of safety, when lithium ion battery is in short circuit, mistake
When causing internal temperature of battery to raise under the abuse conditions such as punching, inside battery can occur series reaction, not only make battery failure,
It is also possible to set off an explosion.Cause the problem of battery explosion in order to prevent cell internal pressure too high, typically can be in lithium-ion electric
Explosion-proof valve is set on the cover plate of pond, is adopted between most of explosion-proof valves and lithium ion battery cover board at present and is individually processed the side welded again
Formula is attached, and wherein welding quality has influence on the performance of relief valve, and relief valve is easily damaged in welding process, and this kind of
Mode is produced and rises this height, and manufacturing procedure is complicated.
Utility model content
The purpose of this utility model is to provide a kind of dependable performance, lithium ion battery cover board with low cost；Meanwhile, this
The purpose of utility model also resides in a kind of lithium ion battery using the lithium ion battery cover board of offer.
For achieving the above object, a kind of technical scheme of lithium ion battery cover board of the present utility model is：A kind of lithium ion
Battery cover board, including cover board body, integrally formed with pressure relief plate on the cover board body, pressure relief plate is provided with weakening groove, weakens
Groove include one circumferentially or weakening groove section that two or more is circumferentially distributed.
The weakening groove is stamping forming impression.
The pressure relief plate and cover board body integrated punching molding, the thickness of slab of pressure relief plate are less than the thickness of slab of cover board body.
The weakening groove includes a weakening groove section, weakens groove section and is circular configuration or is tool C-shaped configuration jaggy.
Be additionally provided with the cover board body positive terminal perforation that is respectively used to pass for the positive and negative pole of lithium ion battery and
Negative terminal is bored a hole.
A kind of technical scheme of lithium ion battery of the present utility model is：A kind of lithium ion battery, including battery battery core and
Battery cover board, battery cover board include cover board body, and integrally formed with pressure relief plate on the cover board body, pressure relief plate is provided with weakening
Groove, weaken groove include one circumferentially or weakening groove section that two or more is circumferentially distributed.
The weakening groove is stamping forming impression.
The pressure relief plate and cover board body integrated punching molding, the thickness of slab of pressure relief plate are less than the thickness of slab of cover board body.
The weakening groove includes a weakening groove section, weakens groove section and is circular configuration or is tool C-shaped configuration jaggy.
Be additionally provided with the cover board body positive terminal perforation that is respectively used to pass for the positive and negative pole of lithium ion battery and
Negative terminal is bored a hole.
The beneficial effects of the utility model are：Pressure relief plate is integrally formed with cover board body, production process is few, low cost,
Sealing property reliability, pressure relief plate are provided with weakening groove and are easy to be easy to break through when cell internal pressure becomes big carry out pressure release.
Description of the drawings
Fig. 1 is the structural representation of the battery cover board in a kind of a kind of embodiment of lithium ion battery of the present utility model；
Upward views of the Fig. 2 for Fig. 1；
Fig. 3 is partial enlarged drawings of the Fig. 2 at A.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further.A kind of lithium ion of the present utility model
The specific embodiment of battery, as shown in Figure 1 to Figure 3, including battery battery core and battery cover board, battery cover board includes cover board body 1
And with 1 integrally formed pressure relief plate 8 of cover board body.On cover board body 1, integrated punching forms thickness of slab of the groove depth along cover board body 1
The groove 5 that direction extends, the bottom land of groove 5 form pressure relief plate 8, and the thickness of slab of pressure relief plate 8 is less than the thickness of slab of cover board body 1.Groove 5
For cylindrical structural, therefore pressure relief plate 8 is circle, pressure relief plate 8 is provided with weakening groove, and weakening groove includes one circumferentially
Weaken groove section, weaken groove section be the C-shaped configuration with a breach being coaxially set on pressure relief plate 8 impression 6, lithium from
Sub- cell internal pressure is easily broken through when becoming big, after breaking through, barbed portion form connecting portion so that the pressure relief plate 8 after breaking through not
Can fly out, the pressure relief plate 8 after breaking through is connected on cover board body 1 by connecting portion, it is to avoid hurted sb.'s feelings, the impression 6 of C-shaped configuration is close
The edge of bottom land 8.Liquid injection hole 4 is additionally provided with cover board body 1 and the positive terminal passed for the positive and negative pole of battery is respectively used to
Perforation 2, negative terminal perforation 3.On the cover board body of battery cover board, integrated punching molds pressure relief plate, reduces production process,
Reduce the performance safety reliability such as production cost, sealing, intensity.
In other embodiment of the present utility model, the impression of C-shaped configuration can also be replaced cutting to play by circular impression
The effect of weak groove, now circular impression formation weaken groove section；Weakening groove can also include plural circumferentially spaced
Impression, now each impression be one weakening groove section；Impression can also be replaced by the groove milling that the Milling Machining on pressure relief plate goes out；Let out
Pressing plate can also casting with cover board body.
A kind of battery cover board in the embodiment of lithium ion battery cover board and a kind of each embodiment of above-mentioned lithium ion battery
Embodiment it is identical, here is omitted.
Claims (10)
1. a kind of lithium ion battery cover board, including cover board body, it is characterised in that：Integrally formed with pressure release on the cover board body
Plate, pressure relief plate are provided with weakening groove, weaken groove include one circumferentially or weakening that two or more is circumferentially distributed
Groove section.
2. a kind of lithium ion battery cover board according to claim 1, it is characterised in that：The weakening groove is stamping forming
Impression.
3. a kind of lithium ion battery cover board according to claim 2, it is characterised in that：The pressure relief plate and cover board body one
Body punch forming, the thickness of slab of pressure relief plate are less than the thickness of slab of cover board body.
4. a kind of lithium ion battery cover board according to any one of claim 1-3, it is characterised in that：The weakening groove includes
One weakening groove section, weakens groove section and is circular configuration or is tool C-shaped configuration jaggy.
5. a kind of lithium ion battery cover board according to claim 1, it is characterised in that：It is additionally provided with the cover board body point
Positive terminal perforation and negative terminal not for passing for the positive and negative pole of lithium ion battery is bored a hole.
6. a kind of lithium ion battery, including battery battery core and battery cover board, battery cover board include cover board body, it is characterised in that：
Integrally formed with pressure relief plate on the cover board body, pressure relief plate is provided with weakening groove, and weakening groove includes one circumferentially
Or the weakening groove section that two or more is circumferentially distributed.
7. a kind of lithium ion battery according to claim 6, it is characterised in that：The weakening groove is stamping forming pressure
Trace.
8. a kind of lithium ion battery according to claim 7, it is characterised in that：The pressure relief plate is rushed with cover board body one
Molded, the thickness of slab of pressure relief plate is less than the thickness of slab of cover board body.
9. a kind of lithium ion battery according to any one of claim 6-8, it is characterised in that：The weakening groove includes one
Weaken groove section, weaken groove section and be circular configuration or be tool C-shaped configuration jaggy.
10. a kind of lithium ion battery according to claim 6, it is characterised in that：Difference is additionally provided with the cover board body
Positive terminal perforation and negative terminal for passing for the positive and negative pole of lithium ion battery is bored a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086811.9U CN206134742U (en) | 2016-09-28 | 2016-09-28 | Lithium ion battery cover plate and use lithium ion battery of this apron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086811.9U CN206134742U (en) | 2016-09-28 | 2016-09-28 | Lithium ion battery cover plate and use lithium ion battery of this apron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134742U true CN206134742U (en) | 2017-04-26 |
Family
ID=58571568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621086811.9U Active CN206134742U (en) | 2016-09-28 | 2016-09-28 | Lithium ion battery cover plate and use lithium ion battery of this apron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565492A (en) * | 2018-06-12 | 2018-09-21 | 无锡凯帕德瑞科技有限公司 | A kind of lithium ion battery and its shell |
| US20230223630A1 (en) * | 2022-01-13 | 2023-07-13 | GM Global Technology Operations LLC | Systems and methods for responding to thermal excursions in a battery |
-
2016
- 2016-09-28 CN CN201621086811.9U patent/CN206134742U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565492A (en) * | 2018-06-12 | 2018-09-21 | 无锡凯帕德瑞科技有限公司 | A kind of lithium ion battery and its shell |
| US20230223630A1 (en) * | 2022-01-13 | 2023-07-13 | GM Global Technology Operations LLC | Systems and methods for responding to thermal excursions in a battery |
| US12107285B2 (en) * | 2022-01-13 | 2024-10-01 | GM Global Technology Operations LLC | Systems and methods for responding to thermal excursions in a battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220113 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |