CN108695450A - Anti-explosion battery shell - Google Patents
Anti-explosion battery shell Download PDFInfo
- Publication number
- CN108695450A CN108695450A CN201810696163.6A CN201810696163A CN108695450A CN 108695450 A CN108695450 A CN 108695450A CN 201810696163 A CN201810696163 A CN 201810696163A CN 108695450 A CN108695450 A CN 108695450A
- Authority
- CN
- China
- Prior art keywords
- shell
- indentation groove
- explosion
- wall
- bottom end
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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
Abstract
The present invention discloses a kind of anti-explosion battery shell, including shell, and the top of the shell is provided with opening, and is connected with explosion-proof cap, and the bottom end of the shell offers indentation groove, and the indentation groove is opened on the inner wall of shell bottom end.The indentation groove of the anti-explosion battery shell is opened on the inner wall of shell bottom end, it is not direct to be in contact with outside air, and since the sealing performance of enclosure interior is preferable, effectively it can be avoided phenomenon of getting rusty occur, in addition, indentation groove is set to the design on the outer wall of shell bottom end compared to tradition, indentation groove is opened on the inner wall of shell bottom end by the present invention so that when pressure increases in shell, indentation groove is more easy to break, and further improves explosion-proof performance.
Description
Technical field
The present invention relates to field of batteries more particularly to a kind of anti-explosion battery shells.
Background technology
Lithium ion battery is a kind of rechargeable battery, it relies primarily on lithium ion, and movement carrys out work between a positive electrode and a negative electrode.
In charge and discharge process, Li+ embedded and deintercalations back and forth between two electrodes:When rechargable battery, Li+ is from positive deintercalation, by electricity
It solves matter and is embedded in cathode, cathode is in rich lithium state;It is then opposite when electric discharge.Since lithium ion battery is with small, light-weight, electric
The features such as strong, environmentally protective is measured, is widely used in industrial production and daily life.
Battery case is the important component of lithium ion battery, and the explosion-proof performance of battery case is particularly important.Chinese patent text
It offers publication number CN106784428 and discloses a kind of anti-explosion battery shell, including shell and the explosion-proof cap for being set to housing tip, institute
State head cover, burst disk and orifice plate that explosion-proof cap includes sealing ring and is from top to bottom encapsulated in successively in sealing ring, the head cover
On be provided with stomata, air hole is provided on the orifice plate, the dent of explosion-proof, the burst disk have been provided in the burst disk
Middle sink, and connect by multiple laser solder joints with orifice plate, a circle indentation groove be provided on the bottom surface of the shell,
The depth of rebate of the indentation groove is the 1/3~3/4 of thickness of shell.Above-mentioned anti-explosion battery shell in the bottom surface of shell by being arranged
Indentation groove substantially reduces security risk to have double shield.However, the indentation groove of the battery case is set to shell
On the outer wall of body bottom end, in the punching press indentation groove, the coating of battery case outer surface is easily destroyed, especially indentation groove
The coating at place, therefore, easily there is phenomenon of getting rusty to the battery case of this kind of structure in indentation groove in use, influences to use
In the service life, Given this problem, part of the manufacturer's improvement related process are electroplated after the completion of punching press indentation groove, but again due to carving
Trace groove is recessed inwardly, and electroplating effect is poor, equally will appear phenomenon of getting rusty, and influences service life, is badly in need of solving as a result,.
Invention content
It is an object of the invention in view of the above-mentioned problems, provide a kind of anti-explosion battery shell, to solve, existing to have indentation recessed
The anti-explosion battery shell of slot is easily got rusty, the short problem of service life.
The purpose of the present invention is be achieved through the following technical solutions:
The top of a kind of anti-explosion battery shell, including shell, the shell is provided with opening, and is connected with explosion-proof cap, institute
The bottom end for stating shell offers indentation groove, and the indentation groove is opened on the inner wall of shell bottom end.
As a preferred embodiment of the present invention, the shell is columnar structured.
As a preferred embodiment of the present invention, the indentation groove is circular configuration
As a preferred embodiment of the present invention, the width of rebate of indentation groove by shell inner end to the outside of shell
Successively decrease successively at end.
As a preferred embodiment of the present invention, the depth of rebate of indentation groove is the 1/3~3/4 of housing bottom surface thickness.
As a preferred embodiment of the present invention, the depth of rebate of indentation groove is the 2/3 of housing bottom surface thickness.
As a preferred embodiment of the present invention, inner wall, the outer wall of shell are both provided with nickel coating.
Beneficial effects of the present invention are that the indentation groove of the anti-explosion battery shell is opened on the inner wall of shell bottom end,
It is not direct to be in contact with outside air, and since the sealing performance of enclosure interior is preferable, effectively it can be avoided to get rusty
Phenomenon, in addition, indentation groove is set to the design on the outer wall of shell bottom end compared to tradition, the present invention opens up indentation groove
In on the inner wall of shell bottom end so that when pressure increases in shell, indentation groove is more easy to break, and further improves explosion-proof
Energy.
Description of the drawings
Fig. 1 is the structural schematic diagram of anti-explosion battery shell;
Fig. 2 is enlarged drawing of the anti-explosion battery shell shown in FIG. 1 at A.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.It is appreciated that
It is that embodiment described herein is used only for explaining the present invention rather than limitation of the invention.
It please refers to shown in Fig. 1 and Fig. 2, Fig. 1 is the structural schematic diagram of anti-explosion battery shell;Fig. 2 is anti-explosion battery shown in FIG. 1
Enlarged drawing of the shell at A.
In this present embodiment, a kind of anti-explosion battery shell, including columnar structured shell 1, it is the inner wall of the shell 1, outer
Wall is both provided with nickel coating, and the top of the shell 1 is provided with opening, and is connected with explosion-proof cap (not being painted in figure), described
The bottom end of shell 1 offers indentation groove 2, and the indentation groove 2 is circular configuration, is opened on the inner wall of 1 bottom end of shell,
The width of rebate of the indentation groove 2 is successively decreased successively by the outboard end of inner end to the shell 1 of shell 1, and the slot of indentation groove 2
Mouth depth is the 2/3 of 1 bottom thickness of shell,
Although it is noted that in the present embodiment, the depth of rebate of indentation groove 2 is the 2/3 of 1 bottom thickness of shell,
But the invention is not restricted to this, and the depth of rebate of indentation groove 2 can also be the 1/3 or 3/4 of 1 bottom thickness of shell or be located at two
Any number between person, the present embodiment are in conjunction with the preferred embodiment after the factors such as explosion-proof effect, production Forming Quality.
The indentation groove 2 of above-mentioned anti-explosion battery shell is opened on the inner wall of 1 bottom end of shell, not direct with outside air phase
Contact, and since the sealing performance inside shell 1 is preferable, effectively it can be avoided phenomenon of getting rusty occur, in addition, compared to
Indentation groove 2 is set to the design on 1 bottom end outer wall of shell by tradition, and indentation groove 2 is opened in 1 bottom end of shell by the present invention
On inner wall so that when pressure increases in shell 1, be more easy to break at indentation groove 2, further improve explosion-proof performance.
Above example is to elaborate that the basic principle and characteristic of the present invention, the present invention are not limited by above-described embodiment,
Without departing from the spirit and scope of the present invention, the present invention also has various changes, these changes and modifications are all fallen
Enter in scope of the claimed invention.The claimed scope of the invention is defined by the following claims.
Claims (7)
1. the top of a kind of anti-explosion battery shell, including shell, the shell is provided with opening, and is connected with explosion-proof cap, described
The bottom end of shell offers indentation groove, it is characterised in that:The indentation groove is opened on the inner wall of shell bottom end.
2. anti-explosion battery shell according to claim 1, it is characterised in that:The shell is columnar structured.
3. anti-explosion battery shell according to claim 2, it is characterised in that:The indentation groove is circular configuration.
4. anti-explosion battery shell according to claim 3, it is characterised in that:The width of rebate of indentation groove by shell inside
The outboard end to shell is held to successively decrease successively.
5. anti-explosion battery shell according to claim 4, it is characterised in that:The depth of rebate of indentation groove is that housing bottom surface is thick
The 1/3~3/4 of degree.
6. anti-explosion battery shell according to claim 5, it is characterised in that:The depth of rebate of indentation groove is that housing bottom surface is thick
The 2/3 of degree.
7. anti-explosion battery shell according to any one of claims 1 to 6, it is characterised in that:Inner wall, the outer wall of shell are respectively provided with
There is nickel coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696163.6A CN108695450A (en) | 2018-06-29 | 2018-06-29 | Anti-explosion battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696163.6A CN108695450A (en) | 2018-06-29 | 2018-06-29 | Anti-explosion battery shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108695450A true CN108695450A (en) | 2018-10-23 |
Family
ID=63850435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810696163.6A Pending CN108695450A (en) | 2018-06-29 | 2018-06-29 | Anti-explosion battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108695450A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983293A (en) * | 2012-11-30 | 2013-03-20 | 武汉昊诚能源科技有限公司 | Scoring method of anti-explosion battery shell |
| US20140072841A1 (en) * | 2011-05-09 | 2014-03-13 | Nippon Steel & Sumitomo Metal Corporation | Battery can for storage battery |
| CN104103778A (en) * | 2014-07-29 | 2014-10-15 | 天津力神电池股份有限公司 | Cylindrical lithium-ion battery case with pressure controllable and safely released |
| CN106784428A (en) * | 2017-01-17 | 2017-05-31 | 无锡市金杨新型电源有限公司 | A kind of anti-explosion battery shell |
| CN107369787A (en) * | 2017-07-27 | 2017-11-21 | 陈海燕 | A kind of anti-explosion battery shell |
| CN208939016U (en) * | 2018-06-29 | 2019-06-04 | 无锡金杨丸伊电子有限公司 | Anti-explosion battery shell |
-
2018
- 2018-06-29 CN CN201810696163.6A patent/CN108695450A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140072841A1 (en) * | 2011-05-09 | 2014-03-13 | Nippon Steel & Sumitomo Metal Corporation | Battery can for storage battery |
| CN102983293A (en) * | 2012-11-30 | 2013-03-20 | 武汉昊诚能源科技有限公司 | Scoring method of anti-explosion battery shell |
| CN104103778A (en) * | 2014-07-29 | 2014-10-15 | 天津力神电池股份有限公司 | Cylindrical lithium-ion battery case with pressure controllable and safely released |
| CN106784428A (en) * | 2017-01-17 | 2017-05-31 | 无锡市金杨新型电源有限公司 | A kind of anti-explosion battery shell |
| CN107369787A (en) * | 2017-07-27 | 2017-11-21 | 陈海燕 | A kind of anti-explosion battery shell |
| CN208939016U (en) * | 2018-06-29 | 2019-06-04 | 无锡金杨丸伊电子有限公司 | Anti-explosion battery shell |
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