CN213401346U - Car lithium cell apron seal structure - Google Patents
Car lithium cell apron seal structure Download PDFInfo
- Publication number
- CN213401346U CN213401346U CN202022479623.5U CN202022479623U CN213401346U CN 213401346 U CN213401346 U CN 213401346U CN 202022479623 U CN202022479623 U CN 202022479623U CN 213401346 U CN213401346 U CN 213401346U
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- China
- Prior art keywords
- electrode
- apron
- cover plate
- electrode sleeve
- sleeve
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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 provides a car lithium cell apron seal structure, be provided with an electrode sleeve in the middle of the apron, electrode sleeve upwards protrudes the apron, and the electrode passes from electrode sleeve, electrode sleeve in the middle of the apron is big elastic construction down in the size under the state of not inserting the electrode. Apron seal structure, improved the insulating effect of electrode piece and battery apron, and sealed effect also obtains relatively and improves, improved power battery's security performance and durability ability.
Description
Technical Field
The utility model relates to a lithium cell production facility technical field relates to a lithium cell apron seal structure for specific saying so.
Background
In the aspect of new energy automobiles, the production capacity of pure electric automobiles and plug-in hybrid electric automobiles reaches 200 thousands, the accumulated output and sales volume exceeds 500 thousands, and the hydrogen energy industry of fuel cell automobiles and automobiles is synchronously developed with the international industry. Once the market of the electric automobile is started in a large scale, the explosion type growth of the lithium battery market is brought. The demand of the power lithium battery is predicted to increase hundreds of times in the future, and the capacity requirement is greatly improved, and the demand is increased from 70.08MWh to 8003.49MWh (note: MWh is milliwatt hour and is the meaning of milliwatt (10^ -3)). Therefore, the popularization and application prospects of the method are better and better.
Lithium batteries can become the industry's direction of development, primarily based on their multiple characteristics. Firstly, it possesses high energy density, the weight of lithium ion battery is half of that of nickel-cadmium or nickel-hydrogen battery with same capacity, and its volume is 40-50% of that of nickel-cadmium. 20-30% of nickel-hydrogen, and can realize high voltage, wherein the working voltage of a lithium ion battery unit is 3.7v (average value), which is equivalent to three serial nickel-cadmium or nickel-hydrogen batteries; meanwhile, the physical lithium ion battery of the lithium battery does not contain cadmium, lead and mercury, and is regarded as a pollution-free battery.
In order to improve the safety performance and the durability, the connection between the electrode piece and the battery cover plate must meet the requirements of insulation and sealing at the same time, and for this reason, a sealing structure is generally arranged between the electrode piece and the battery cover plate, but the sealing effect which can be achieved by the existing sealing structure is not good, or the insulation effect is not good, the assembly with good sealing effect is complex, and the cost is high. Therefore, a novel safe and reliable lithium battery sealing cover plate structure needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the problem that exists among the prior art is overcome, a car lithium cell apron seal structure is provided.
In order to solve the above problems, the technical solution of the present invention is as follows:
the utility model provides an automobile lithium battery cover plate seal structure, be provided with an electrode sleeve in the middle of the apron, electrode sleeve upwards projects the apron, and the electrode passes from electrode sleeve, electrode sleeve in the middle of the apron is big elastic construction down in the state of not inserting the electrode.
And the root part of the electrode is provided with an insulating gasket.
And an insulating glue layer is coated at the joint of the electrode and the electrode sleeve.
The electrode passes through the electrode sleeve and upwardly exposes the electrode head.
The height dimension of the part of the electrode sleeve protruding upwards out of the cover plate is larger than or equal to the thickness dimension of the cover plate.
Beneficial effect, apron seal structure, improved the insulating effect of electrode piece with the battery apron, and sealed effect also obtains relatively improving, has improved power battery's security performance and durability ability.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is the utility model discloses a car lithium cell apron seals section structure sketch map.
Fig. 2 is a schematic view of the cross-sectional structure of the electrode sleeve according to the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 and 2, an electrode sleeve 2 is arranged in the middle of a cover plate 1, the bottom of the electrode sleeve is flush with the cover plate, the electrode sleeve 2 protrudes upwards out of the cover plate 1, an electrode 3 penetrates through the electrode sleeve 2, and the electrode sleeve 2 in the middle of the cover plate is of a structure with large upper part and small lower part in a state that the electrode is not inserted. After the electrode 3 passes through the electrode sleeve 2, the electrode sleeve 2 is tightly wrapped on an electrode column of the electrode 3 through extrusion, the stroke is sealed, and the electrode sleeve 2 is made of an insulating material.
And the root of the electrode 3 is provided with an insulating gasket 4, so that the cover plate 2 is not contacted with the root of the electrode.
And an insulating glue layer is coated at the joint of the electrode 3 and the electrode sleeve 2. The insulating glue is coated before the cover plate is assembled, then the cover plate is installed, and the electrode sleeve 2 is sleeved on the electrode to form an insulating sealing structure.
The electrode 3 passes through the electrode sleeve 2 and exposes the electrode head upward. And an exposed electrode head for making an external circuit.
The height dimension of the part of the electrode sleeve 2 protruding upwards out of the cover plate is larger than or equal to the thickness dimension of the cover plate 1. Namely, the sealing joint area of the electrode sleeve 2 and the electrode column is increased as much as possible, so that a better sealing effect is achieved.
With continued reference to fig. 2, the electrode sleeve 2 is of a small-top and large-bottom elastic structure in a state where no electrode is inserted, and the inner surface of the electrode sleeve 2 forms an angle smaller than 2 ° with the vertical direction. The electrode sleeve 2 is sleeved on the electrode column in the elastic deformation range, and the electrode sleeve is prevented from being broken.
Apron seal structure, improved the insulating effect of electrode piece and battery apron, and sealed effect also obtains relatively and improves, improved power battery's security performance and durability ability.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an automobile lithium cell apron seal structure, characterized by, be provided with an electrode sleeve in the middle of the apron, electrode sleeve upwards projects the apron, and the electrode passes from electrode sleeve, electrode sleeve in the middle of the apron is big elastic construction down in the state of not inserting the electrode.
2. The cover plate sealing structure of the lithium battery of the automobile as claimed in claim 1, wherein an insulating gasket is provided at the root of the electrode.
3. The cover plate sealing structure of the lithium battery of the automobile as claimed in claim 1, wherein the joint of the electrode and the electrode sleeve is coated with an insulating glue layer.
4. The sealing structure of a cover plate for a lithium battery of an automobile as claimed in claim 1, wherein the electrode is penetrated through the electrode sleeve and exposed upwardly from the electrode head.
5. The cover plate sealing structure of the lithium battery of the vehicle as claimed in claim 1, wherein the height dimension of the part of the electrode sleeve protruding upwards the cover plate is greater than or equal to the thickness dimension of the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022479623.5U CN213401346U (en) | 2020-10-30 | 2020-10-30 | Car lithium cell apron seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022479623.5U CN213401346U (en) | 2020-10-30 | 2020-10-30 | Car lithium cell apron seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213401346U true CN213401346U (en) | 2021-06-08 |
Family
ID=76192089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022479623.5U Active CN213401346U (en) | 2020-10-30 | 2020-10-30 | Car lithium cell apron seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213401346U (en) |
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2020
- 2020-10-30 CN CN202022479623.5U patent/CN213401346U/en active Active
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