CN207409520U - A kind of square lithium ion battery with hard shell - Google Patents
A kind of square lithium ion battery with hard shell Download PDFInfo
- Publication number
- CN207409520U CN207409520U CN201721447222.3U CN201721447222U CN207409520U CN 207409520 U CN207409520 U CN 207409520U CN 201721447222 U CN201721447222 U CN 201721447222U CN 207409520 U CN207409520 U CN 207409520U
- Authority
- CN
- China
- Prior art keywords
- battery
- corner
- cover board
- lithium ion
- battery case
- 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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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
Abstract
The utility model belongs to technical field of lithium ion, more particularly to a kind of square lithium ion battery with hard shell, including battery case and the battery cover board being seal-installed on battery case, the corner of the corner of the battery cover board and the battery case is interference fit connection structure.Compared with the prior art, the utility model is by making the corner of battery cover board and the corner of battery case be interference fitted connection, on the one hand, can so effectively improve the stability of the two connection, avoid the two that shelling problem occurs, ensure the security of battery；On the other hand, the depth of parallelism between the two can also be so corrected, so that it is guaranteed that the two is carrying out the reliability of laser welding, and then improves the quality of battery.
Description
Technical field
The utility model belongs to technical field of lithium ion more particularly to a kind of square lithium ion battery with hard shell.
Background technology
Square lithium ion battery with hard shell has been more and more widely used due to its low internal resistance, high power capacity are when advantages.It is square
Lithium ion battery with hard shell is generally made of square-shaped battery casing, battery cover board, naked battery core etc., battery case and battery cover board composition
Closed accommodating chamber, and naked battery core and electrolyte are then placed in accommodating chamber.However, in the prior art, in order to by battery cover
Plate is smoothly mounted on battery case, and the shape of battery cover board is generally consistent with battery case opening shape, the ruler of battery cover board
Very little then generally smaller than the size of battery case opening, such structure design easily declines the assembling tightness of the two, special
It is not under vibration environment, battery cover board is it is easy to appear shelling phenomenon, so as to influence the safety of battery and quality.
In view of this, it is necessory to provide a kind of technical solution to solve the above problems.
Utility model content
The purpose of this utility model is that：In view of the deficiencies of the prior art, a kind of square lithium ion battery with hard shell is provided,
To improve the stability of battery cover board and battery case connection structure, and then improve the safety and quality of battery.
To achieve these goals, the utility model uses following technical scheme：
A kind of square lithium ion battery with hard shell, including battery case and the battery cover being seal-installed on battery case
The corner of plate, the corner of the battery cover board and the battery case is interference fit connection structure.
As a kind of improvement of square lithium ion battery with hard shell described in the utility model, the corner of the battery case and
The corner of the battery cover board is rounding corner structure.
As a kind of improvement of square lithium ion battery with hard shell described in the utility model, the corner of the battery cover board
Radius of curvature is less than the radius of curvature of the corner of the battery case.
As a kind of improvement of square lithium ion battery with hard shell described in the utility model, the battery case for aluminum hull or
Alloy shell.
As a kind of improvement of square lithium ion battery with hard shell described in the utility model, the battery cover board is aluminum substrate
Or alloy substrate.
The beneficial effects of the utility model are：A kind of square lithium ion battery with hard shell of the utility model, including battery case
Body and the battery cover board being seal-installed on battery case, the corner of the battery cover board and the corner of the battery case
To be interference fitted connection structure.Compared with the prior art, the utility model is by making corner and the battery case of battery cover board
Corner interference fit connection, on the one hand, can so effectively improve the stability of the two connection, avoid the two that shelling occurs and ask
Topic ensures the security of battery；On the other hand, the depth of parallelism between the two can also be so corrected, so that it is guaranteed that the two is being swashed
The reliability of photocoagulation, and then improve the quality of battery.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the structural exploded view of Fig. 1.
Fig. 3 is the structure top view of the utility model.
Fig. 4 is the partial enlarged view of A in Fig. 3.
In figure：1- battery cases；2- battery cover boards；21- positive terminals；22- negative terminals.
Specific embodiment
To make the technical solution of the utility model and advantage clearer, below in conjunction with specific embodiment and specification
Attached drawing is described in further detail the utility model and its advantage, but the embodiment of the utility model is not limited to
This.
As shown in Fig. 1 ~ 4, a kind of square lithium ion battery with hard shell including battery case 1, is contained in battery case 1
Battery core and electrolyte and the battery cover board 2 being seal-installed on battery case 1 are provided with 21 He of positive terminal on battery cover board 2
The corner of negative terminal 22, the corner of the battery cover board 2 and the battery case 1 is interference fit connection structure.
Wherein, the corner of the battery case 1 and the corner of the battery cover board 2 are rounding corner structure, and the electricity
The radius of curvature of the corner of pond cover board 2 is less than the radius of curvature of the corner of the battery case 1.
Wherein, the material of the battery cover board 2 is generally consistent with the material of the battery case 1, such as the battery case
Body 1 is aluminum hull, box hat or alloy shell, and the battery cover board 2 is aluminum substrate, box hat or alloy substrate.
Compared with the prior art, the utility model is by matching somebody with somebody the corner of battery cover board 2 and the corner interference of battery case 1
Close connection, on the one hand, can so effectively improve the stability of the two connection, avoid the two that shelling problem occurs, ensure battery
Security；On the other hand, the depth of parallelism between the two can also be so corrected, so that it is guaranteed that the two is carrying out the reliable of laser welding
Property, and then improve the quality of battery.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and changed.Therefore, the utility model is not limited to above-mentioned specific embodiment, every this field skill
It is new that art personnel any conspicuously improved, replacement made on the basis of the utility model or modification belong to this practicality
The protection domain of type.In addition, although having used some specific terms in this specification, these terms are intended merely to facilitate
It is bright, any restrictions are not formed to the utility model.
Claims (5)
1. a kind of square lithium ion battery with hard shell, including battery case and the battery cover board being seal-installed on battery case,
It is characterized in that：The corner of the battery cover board and the corner of the battery case are interference fit connection structure.
2. square lithium ion battery with hard shell according to claim 1, it is characterised in that：The corner of the battery case and institute
The corner for stating battery cover board is rounding corner structure.
3. square lithium ion battery with hard shell according to claim 2, it is characterised in that：The song of the corner of the battery cover board
Rate radius is less than the radius of curvature of the corner of the battery case.
4. square lithium ion battery with hard shell according to claim 1, it is characterised in that：The battery case is aluminum hull or conjunction
Golden shell body.
5. square lithium ion battery with hard shell according to claim 1, it is characterised in that：The battery cover board for aluminum substrate or
Alloy substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721447222.3U CN207409520U (en) | 2017-11-02 | 2017-11-02 | A kind of square lithium ion battery with hard shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721447222.3U CN207409520U (en) | 2017-11-02 | 2017-11-02 | A kind of square lithium ion battery with hard shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409520U true CN207409520U (en) | 2018-05-25 |
Family
ID=62317946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721447222.3U Active CN207409520U (en) | 2017-11-02 | 2017-11-02 | A kind of square lithium ion battery with hard shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036267A (en) * | 2021-01-26 | 2021-06-25 | 江苏中兴派能电池有限公司 | Crust lithium ion battery structure |
-
2017
- 2017-11-02 CN CN201721447222.3U patent/CN207409520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036267A (en) * | 2021-01-26 | 2021-06-25 | 江苏中兴派能电池有限公司 | Crust lithium ion battery structure |
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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: 20220126 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 523000 Dalang Town, Dongguan, Guangdong province Xiangshan Pine Hill Village Xiangshan Industrial Park Jiayuan Road No. 9 Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |