CN205828450U - A kind of lithium ion battery cover board - Google Patents
A kind of lithium ion battery cover board Download PDFInfo
- Publication number
- CN205828450U CN205828450U CN201620561697.4U CN201620561697U CN205828450U CN 205828450 U CN205828450 U CN 205828450U CN 201620561697 U CN201620561697 U CN 201620561697U CN 205828450 U CN205828450 U CN 205828450U
- Authority
- CN
- China
- Prior art keywords
- cover board
- board body
- ion battery
- pole
- lithium ion
- 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)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
This utility model relates to a kind of lithium ion battery cover board, belongs to technical field of lithium-ion battery.Including cover board body and be positioned at the pole in the middle part of cover board body, cover board body offering explosionproof hole, the bottom of explosionproof hole is provided with burst disk, and the bottom glue-line of burst disk is fixed；Being provided with plastic insulation sheet between cover board body and pole, two contact surfaces of insulating trip are equipped with toothed projections.Toothed projections structure of the present utility model designs, and can effectively increase the void area between insulating trip and cover board body and pole, not only can play good insulated enclosure effect, also have explosion-proof defencive function.
Description
Technical field
This utility model relates to a kind of lithium ion battery cover board, belongs to technical field of lithium-ion battery.
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
The sealing requirements of sub-battery is higher, not only requires that the electrolyte of inside battery can not spill, when battery by short circuit, high heat,
When affecting of the abnormal factorses such as overcharge, inside battery forms gases at high pressure, it is also contemplated that the deformation avoiding causing battery container
Even there is battery explosion.
In order to stop the problems referred to above occur, 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 defencive function then can lose efficacy.
Utility model content
The purpose of this utility model is to provide a kind of lithium ion battery cover board, has good sealing effect and dual explosion-proof
Function.
To achieve these goals, the technical scheme that this utility model is used is:
A kind of lithium ion battery cover board, including cover board body and be positioned at the pole in the middle part of cover board body, on cover board body
Offering explosionproof hole, the bottom of explosionproof hole is provided with burst disk, and the bottom glue-line of burst disk is fixed；Between cover board body and pole
Being provided with plastic insulation sheet, two contact surfaces of insulating trip are equipped with toothed projections.
The lower surface of described insulating trip fits tightly with the lower surface of cover board body, and the lower surface of insulating trip extends to lid
At 2/3rds of plate body lower surface.
Described plastic insulation sheet is PP, PE, PVC, PET material or the mixture of above-mentioned several material.
Insulating trip used by this utility model uses the design of toothed projections structure, is possible not only to effectively increase insulating trip and cover plate
Void area between body and pole, plays good insulated enclosure effect, when inside battery is because of short circuit or other reasons
When causing internal temperature up to 100 degree, plastic insulation sheet heat shrinkable, the high temperature and high pressure gas of inside battery can pass through cover plate
Gap between body and pole is discharged into outside, thus effectively protects 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；
Fig. 2 is toothed projections structure for amplifying schematic diagram of the present utility model.
Detailed description of the invention:
Shown in Fig. 1 and Fig. 2, a kind of lithium ion battery cover board that this utility model provides, including cover board body 1 and
Being positioned at the pole 2 in the middle part of cover board body 1, cover board body 1 offers explosionproof hole 4, the bottom of explosionproof hole 4 is provided with burst disk 5, anti-
Bottom glue-line 6 fixing seal of quick-fried 5；Being provided with plastic insulation sheet 3 between cover board body 1 and pole 2, insulating trip 3 is by electrode
Between isolation prevent short circuit, also function to sealing function, prevent the electrolyte of inside battery from overflowing, two of insulating trip 3 contact tables
Face is respectively equipped with toothed projections 7.
Arranging further, the lower surface of insulating trip 3 fits tightly with the lower surface of cover board body 1, and the lower end of insulating trip 3
Face extends to, at 2/3rds of cover board body 1 lower surface, can be effectively isolated between cover board body 1 and inside battery electrode
Contact short circuit.
Burst disk Main Function in such scheme is used for preventing battery explosion, once in the transportation of battery exactly
Burst disk occurs unexpected damaged or comes off, then plastic insulation sheet 3 just can serve as anti-explosion mechanism use, described plastic insulation sheet
Can be PP, PE, PVC, PET material or the mixture of above-mentioned several material.When inside battery is because being short-circuited or other faults
When causing internal temperature to be increased to 100 degree, plastic insulation sheet 3 heat shrinkable, the high temperature and high pressure gas of inside battery can pass through
Gap between cover board body 1 and pole 2 is discharged into outside batteries, thus effectively prevent the danger of battery explosion.
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 (2)
1. a lithium ion battery cover board, including cover board body and be positioned at the pole in the middle part of cover board body, it is characterised in that: lid
Offering explosionproof hole on plate body, the bottom of explosionproof hole is provided with burst disk, and the bottom glue-line of burst disk is fixed；Cover board body with
Being provided with plastic insulation sheet between pole, two contact surfaces of insulating trip are equipped with toothed projections.
A kind of lithium ion battery cover board the most according to claim 1, it is characterised in that: the lower surface of described insulating trip and lid
The lower surface of plate body fits tightly, and the lower surface of insulating trip extends at 2/3rds of cover board body lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561697.4U CN205828450U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561697.4U CN205828450U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205828450U true CN205828450U (en) | 2016-12-21 |
Family
ID=57569104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620561697.4U Expired - Fee Related CN205828450U (en) | 2016-06-12 | 2016-06-12 | A kind of lithium ion battery cover board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205828450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024000946A1 (en) * | 2022-06-28 | 2024-01-04 | 湖北亿纬动力有限公司 | Cap assembly, battery, battery module, battery pack, and vehicle |
-
2016
- 2016-06-12 CN CN201620561697.4U patent/CN205828450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024000946A1 (en) * | 2022-06-28 | 2024-01-04 | 湖北亿纬动力有限公司 | Cap assembly, battery, battery module, battery pack, and vehicle |
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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 |
Granted publication date: 20161221 Termination date: 20200612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |