CN211858819U - Cylindrical lithium battery sealing device - Google Patents
Cylindrical lithium battery sealing device Download PDFInfo
- Publication number
- CN211858819U CN211858819U CN201922405076.3U CN201922405076U CN211858819U CN 211858819 U CN211858819 U CN 211858819U CN 201922405076 U CN201922405076 U CN 201922405076U CN 211858819 U CN211858819 U CN 211858819U
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- CN
- China
- Prior art keywords
- battery
- top cap
- sealing device
- cylindrical lithium
- lithium battery
- 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
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a cylinder lithium cell closing device belongs to battery processing technology field. Comprises a battery shell and a sealing structure. The method is characterized in that: seal structure includes top cap, sealed rubber ring and the three independent part of top cap circle, and the top cap nestification is in sealed rubber ring, inlays and inserts top cap circle centre bore, and top cap circle surface scribbles liquid sealant, inserts from the battery case opening end, adopts laser welding to connect battery case, has further strengthened sealed effect, prevents that the battery liquid from revealing, guarantees the complete sealing of battery interface, has improved the security and the life of battery, the utility model discloses make simply, convenient assembling, safe and reliable is applicable to large-scale production.
Description
Technical Field
The utility model belongs to the technical field of battery processing, especially, relate to a cylinder lithium cell closing device.
Background
The cylindrical lithium battery sealing structure at present is whole part, with the sealing structure pressfitting on battery case, adopts mechanical riveting mode to connect, and the current leakproofness of sealing the interface and can't guaranteeing the battery has the risk of weeping, causes the battery short circuit simultaneously easily, seriously influences the security performance and the life of battery.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a cylinder lithium cell closing device.
The utility model discloses a realize like this: a cylindrical lithium battery sealing apparatus, comprising: battery case, seal structure includes top cap, sealed rubber ring and the three independent part of top cap circle, and the top cap nestification is in sealed rubber ring, inlays and inserts top cap circle centre bore, and top cap circle surface scribbles liquid sealant, inserts from the battery case opening end, adopts laser welding to connect battery case.
Further, the sealing method comprises a battery shell and a sealing structure.
Furthermore, the battery shell, the top cover, the sealing rubber ring and the top cover ring are all independent components.
Furthermore, the battery shell and the top cover are both made of conductive metal materials.
Further, the lower end of the top cover is connected with a battery positive lug.
Further, the sealing rubber ring is made of corrosion-resistant insulating materials.
Further, the outer surface of the top cover ring is coated with liquid sealant.
Further, the seal structure is laser welded to the battery case.
Further, the laser welding may employ ring or top welding.
The utility model provides a pair of cylinder lithium cell closing device designs into independent part with top cap, sealing rubber ring and top cap circle, makes simply, and convenient assembling can independently change, effective reduction in production cost. The sealing rubber ring is made of corrosion-resistant insulating materials, the battery shell and the top cover are made of conductive metals, the top cover is completely nested in the sealing rubber ring, the lower end of the top cover is connected with the positive electrode lug of the battery, even if the bent positive electrode lug leaks electricity and touches the battery shell, the battery short circuit cannot be caused, meanwhile, when the pressure in the battery is too large, the good flexibility and the ductility of the sealing rubber ring play a role in pressure relief, and the safety of the battery is greatly improved. The outer surface of the top cover ring is coated with liquid sealant, the top cover ring is connected with the battery shell through laser welding, the battery is sealed completely, leakage of the lithium battery is prevented, the safety and the product quality of the lithium battery are improved, the potential safety hazard of the lithium battery is effectively reduced, and the use safety is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a sectional view of a sealing structure of a sealing device for a cylindrical lithium battery according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a sealing structure according to an embodiment of the present invention;
in the figure: 1. a top cover; 2. sealing the rubber ring; 3. a top cover ring; 4. laser welding; 5. a liquid sealant; 6. a battery case; 7. and (5) sealing the structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the sealing device for cylindrical lithium battery of the embodiment of the present invention includes: comprises a battery shell 6 and a sealing structure 7. The sealing structure 7 comprises three independent components, namely a top cover 1, a sealing rubber ring 2 and a top cover ring 3, and is simple to manufacture, convenient to assemble, capable of being independently replaced and capable of effectively reducing production cost. Battery case 6 and top cap 1 all adopt the electrically conductive metal material, top cap 1 is nested in sealed rubber ring 2 completely, sealed rubber ring 2 adopts corrosion resistance insulating material, then inlay and insert 3 centre holes of top cap circle, top cap 1 lower extreme is connected with the positive ear of battery, 3 surfaces of top cap circle scribble liquid sealant 5, insert from 6 opening ends of battery case, adopt laser welding 4 to connect battery case 6, guarantee that the battery seals totally sealedly, prevent the lithium cell weeping, the security and the product quality of lithium cell have been improved, the potential safety hazard of lithium cell has effectively been reduced, guarantee to use safety.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a cylinder lithium cell closing device which characterized in that: including battery case, seal structure includes top cap, sealed rubber ring and the three independent part of top cap circle, and the top cap nestification is in sealed rubber ring, inlays and inserts top cap circle centre bore, and top cap circle surface scribbles liquid sealant, inserts from the battery case opening end, adopts laser welding to connect battery case.
2. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: including a battery case and a sealing structure.
3. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: the battery shell, the top cover, the sealing rubber ring and the top cover ring are all independent parts.
4. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: the battery shell and the top cover are both made of conductive metal materials.
5. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: the lower end of the top cover is connected with the positive lug of the battery.
6. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: the sealing rubber ring is made of corrosion-resistant insulating materials.
7. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: and the outer surface of the top cover ring is coated with liquid sealant.
8. The sealing device for a cylindrical lithium battery as claimed in claim 1, wherein: the seal structure is laser welded to the battery case.
9. The sealing device for a cylindrical lithium battery as claimed in claim 8, wherein: the laser welding can adopt ring body or top welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405076.3U CN211858819U (en) | 2019-12-27 | 2019-12-27 | Cylindrical lithium battery sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405076.3U CN211858819U (en) | 2019-12-27 | 2019-12-27 | Cylindrical lithium battery sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211858819U true CN211858819U (en) | 2020-11-03 |
Family
ID=73217044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922405076.3U Expired - Fee Related CN211858819U (en) | 2019-12-27 | 2019-12-27 | Cylindrical lithium battery sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211858819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331964A (en) * | 2020-11-09 | 2021-02-05 | 湖南宝特瑞能新能源有限责任公司 | Cylindrical packaging and sealing shell structure for lithium battery |
| CN116799285A (en) * | 2023-08-18 | 2023-09-22 | 河南科技学院 | Battery pack processing system |
-
2019
- 2019-12-27 CN CN201922405076.3U patent/CN211858819U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331964A (en) * | 2020-11-09 | 2021-02-05 | 湖南宝特瑞能新能源有限责任公司 | Cylindrical packaging and sealing shell structure for lithium battery |
| CN116799285A (en) * | 2023-08-18 | 2023-09-22 | 河南科技学院 | Battery pack processing system |
| CN116799285B (en) * | 2023-08-18 | 2023-11-03 | 河南科技学院 | Battery pack processing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20201103 Termination date: 20211227 |