CN205790090U - A kind of lithium ion battery cover board of band blast resistance construction - Google Patents
A kind of lithium ion battery cover board of band blast resistance construction Download PDFInfo
- Publication number
- CN205790090U CN205790090U CN201620563926.6U CN201620563926U CN205790090U CN 205790090 U CN205790090 U CN 205790090U CN 201620563926 U CN201620563926 U CN 201620563926U CN 205790090 U CN205790090 U CN 205790090U
- Authority
- CN
- China
- Prior art keywords
- cover board
- hole
- lithium ion
- ion battery
- board body
- 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
Links
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
This utility model relates to a kind of lithium ion battery cover board, the especially lithium ion battery cover board of band blast resistance construction, including cover board body, through hole is offered on cover board body, the upper surface of cover board body is coated with the plastic insulating layer that injection is formed, and plastic insulating layer lower surface shape pillared plastic filler correspondence is filled to described through hole.This utility model offers through hole on lithium ion battery cover board; this through hole both can use as liquid injection hole; also there is explosion prevention function; when inside battery causes internal temperature up to 100 degree because of short circuit or other reasons; the plastic filler heat shrinkable being molded in through hole; the high temperature and high pressure gas of inside battery can be discharged into outside by the gap of through hole, thus effectively protects the safety of battery.
Description
Technical field
This utility model relates to a kind of lithium ion battery cover board, the especially lithium ion battery cover board of band blast resistance construction.
Background technology
Along with the full-fledged of lithium ion battery technology and the appearance of higher energy density material, lithium ion battery is more come
More being widely used in electric automobile field, its safety is also a lot of than conventional digital energy storage Li-like ions battery improves.Lithium from
Sub-battery is when being affected by abnormal factorses such as short circuit, high heat, overcharges, and inside battery easily forms gases at high pressure, can draw
Play the deformation even danger of battery explosion of battery container.
In order to avoid there are the problems referred to above, existing way is typically to arrange relief valve on battery cover board, works as inside battery
When pressure rises to a certain degree, relief valve can be opened rapidly and be discharged by the gas of inside battery, and inner pressure of battery declines, thus
Prevent battery explosion, play safeguard protection effect.
Existing relief valve many employings burst disk structure, burst disk easily produces stain at weld when welding or explodes
Point, or the husky hole that is not respectively formed of stress and crackle, with electrolyte Long contact time after or transportation in, explosion-proof
Sheet is vibrated to be easily corroded to rupture and even comes off, and does not has cell safety protective effect.
Utility model content
The purpose of this utility model is to provide a kind of explosion-proof knot of the band safe and reliable without ad hoc relief valve and blast resistance construction
The lithium ion battery cover board of structure.
To achieve these goals, the technical scheme that this utility model is used is:
The lithium ion battery cover board of a kind of band blast resistance construction, including cover board body, cover board body offers through hole, cover plate
The upper surface of body is coated with the plastic insulating layer that injection is formed, the pillared plastic filler pair of plastic insulating layer lower surface shape
Should fill to described through hole.
Described through hole is several and is uniformly distributed on cover board body.
The plastic partition absciss layer between plastic filler and inside battery positive/negative plate in described through hole links into an integrated entity.
This utility model offers through hole on lithium ion battery cover board, and this through hole both can use as liquid injection hole, also has
Having explosion prevention function, when inside battery causes internal temperature up to 100 degree because of short circuit or other reasons, be molded in through hole moulds
Material implant heat shrinkable, the high temperature and high pressure gas of inside battery can be discharged into outside by the gap of through hole, thus effectively
Protect the safety of battery.
Below by way of the drawings and specific embodiments, this utility model is further elaborated.
Accompanying drawing illustrates:
Fig. 1 is cross-sectional view of the present utility model.
Detailed description of the invention:
Shown in Fig. 1, the lithium ion battery cover board of a kind of band blast resistance construction that this utility model provides, including cover plate originally
Body 1, cover board body 1 offers through hole 2, and this through hole 2 both can serve as liquid injection hole and used, and the blast resistance construction also serving as battery makes
With, therefore without offering liquid injection hole the most specially；In order to improve explosion-proof effect further, some through holes can be kept at a certain distance away all
Even being laid on cover board body 1, cover board body 1 upper surface is coated with the plastic insulating layer 3 that injection is formed, plastic insulating layer 3
Lower surface shape pillared plastic filler correspondence is filled to through hole 2.Wherein, plastic filler can be PP, PE, PVC,
PET material or the mixture of above-mentioned several material.
After completing the operation of the fluid injection to inside battery at through hole 2, can be exhausted at cover board body 1 upper surface injection-moulded plastic
Edge layer 3, and make injection-moulded plastic be packed in each through hole 2, through hole 2 is thoroughly closed, makes battery inside and outside isolate, prevent battery
The internal outside seepage of electrolyte.This plastic insulating layer 3 has insulating effect, inside battery structure can be separated, prevent short
Road.
When using plastics to carry out isolated insulation between the positive/negative plate of inside battery, the plastic filler in through hole 2 is permissible
And the plastic partition absciss layer between inside battery positive/negative plate links into an integrated entity, can effectively prevent the sealing coat between positive/negative plate
Come off and be short-circuited.
Above example only in order to the technical solution of the utility model to be described and unrestricted, those of ordinary skill in the art couple
Other amendment or equivalents that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, all should contain in right of the present utility model.
Claims (3)
1. a lithium ion battery cover board for band blast resistance construction, including cover board body, it is characterised in that: offer on cover board body
Through hole, the upper surface of cover board body is coated with the plastic insulating layer that injection is formed, and plastic insulating layer lower surface shape is pillared moulds
Material implant correspondence is filled to described through hole.
The lithium ion battery cover board of a kind of band blast resistance construction the most according to claim 1, it is characterised in that: described through hole is
Several and be uniformly distributed on cover board body.
The lithium ion battery cover board of a kind of band blast resistance construction the most according to claim 1, it is characterised in that: in described through hole
Plastic filler and inside battery positive/negative plate between plastic partition absciss layer link into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620563926.6U CN205790090U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board of band blast resistance construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620563926.6U CN205790090U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board of band blast resistance construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790090U true CN205790090U (en) | 2016-12-07 |
Family
ID=58134909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620563926.6U Expired - Fee Related CN205790090U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board of band blast resistance construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205790090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916584A (en) * | 2020-07-02 | 2020-11-10 | 欣旺达电动汽车电池有限公司 | Lithium ion battery top cover assembly and lithium ion battery |
-
2016
- 2016-06-12 CN CN201620563926.6U patent/CN205790090U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916584A (en) * | 2020-07-02 | 2020-11-10 | 欣旺达电动汽车电池有限公司 | Lithium ion battery top cover assembly and lithium ion battery |
| CN111916584B (en) * | 2020-07-02 | 2022-06-10 | 欣旺达电动汽车电池有限公司 | Lithium ion battery top cover assembly and lithium ion battery |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200612 |