CN210040384U - Explosion-proof lithium battery - Google Patents
Explosion-proof lithium battery Download PDFInfo
- Publication number
- CN210040384U CN210040384U CN201920808011.0U CN201920808011U CN210040384U CN 210040384 U CN210040384 U CN 210040384U CN 201920808011 U CN201920808011 U CN 201920808011U CN 210040384 U CN210040384 U CN 210040384U
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- proof aluminum
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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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Abstract
The utility model relates to the technical field of lithium batteries, in particular to an explosion-proof lithium battery, which comprises a steel shell, an explosion-proof aluminum sheet, a steel cap and a sealing ring, wherein the steel cap is arranged on the explosion-proof aluminum sheet, the explosion-proof aluminum sheet is arranged on the steel shell, the sealing ring is arranged between the explosion-proof aluminum sheet and the steel shell, the steel cap is positioned at one end of the steel shell and also comprises a pole lug and an insulating layer, the pole lug is arranged between the steel cap and the explosion-proof aluminum sheet, the pole lug comprises a fixing part and a fusing part, the fixing part is fixedly connected on the explosion-proof aluminum sheet, the fusing part is fixedly connected on the steel cap, the fusing part is provided with a support leg which extends outwards, one end of the support leg is arranged on the fixing part, one part of the insulating layer is arranged between the fusing part and the explosion-proof aluminum sheet, when the explosion-proof lithium battery is used, therefore, the pole lugs are not required to be arranged inside the steel shell, and the operation difficulty of workers is reduced.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell technique and specifically relates to an explosion-proof type lithium cell is related to.
Background
Lithium ion batteries have high energy density and various excellent properties, and thus are increasingly used. Cylindrical lithium ion batteries represent a significant share of the lithium ion battery market due to their standardized size, mature process and equipment. The safety of lithium ion batteries is becoming the subject of attention and research due to the large number of applications. For an energy type lithium ion battery, a thermistor can be designed to protect the safety of the battery, and when a short circuit occurs inside and outside the battery to generate a large current, the thermistor can prevent safety accidents.
Among traditional lithium cell structure, the utmost point ear by pure aluminium preparation adopts the sheet structure usually, the thickness is unanimous basically, with utmost point ear welding on explosion-proof aluminum sheet, and because the lithium cell inner space is effective in the installation, and utmost point ear partly welds on explosion-proof aluminum sheet, and the fusing portion of utmost point ear then sets up perpendicularly in the steel cap inner chamber, the space is more effective between utmost point ear and the explosion-proof aluminum sheet, make utmost point ear welding more difficult, the welding degree of difficulty of utmost point ear has been improved, the staff's operation of not being convenient for has just reduced work efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve traditional lithium cell structure, the utmost point ear by pure aluminium preparation adopts the sheet structure usually, the thickness is unanimous basically, with utmost point ear welding on explosion-proof aluminum sheet, and because the lithium cell inner space is effective in the installation, and partly welding of utmost point ear is on explosion-proof aluminum sheet, and the fuse portion of utmost point ear then sets up perpendicularly in the steel cap inner chamber, the space is more effective between utmost point ear and the explosion-proof aluminum sheet, it is more difficult to make utmost point ear welding, the welding degree of difficulty of utmost point ear has been improved, the staff's operation of being not convenient for, the problem of work efficiency has also just also been reduced, an explosion-proof lithium cell is provided now.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an explosion-proof lithium battery, includes steel casing, explosion-proof aluminum sheet, steel cap and sealing washer, the steel cap sets up on explosion-proof aluminum sheet, explosion-proof aluminum sheet sets up on the steel casing, the sealing washer sets up between explosion-proof aluminum sheet and steel casing, the steel cap is located the one end of steel casing, still includes utmost point ear and insulating layer, utmost point ear sets up between steel cap and explosion-proof aluminum sheet, utmost point ear includes fixed part and fusing portion, fixed part fixed connection is on explosion-proof aluminum sheet, fusing portion links firmly on the steel cap, fusing portion has outside extension and has the stabilizer blade, the one end setting of stabilizer blade is on the fixed part, a part of insulating layer sets up between fusing portion and explosion-proof aluminum sheet, another part setting of insulating layer is between steel cap and explosion-proof aluminum sheet. Through setting up fusing part between explosion-proof aluminum sheet and steel cap, need not like this with utmost point ear setting inside the steel casing, reduced staff's the operation degree of difficulty like this.
Further, fusing part is semi-closed ring structure, fusing part cover is established outside the fixed part, the stabilizer blade sets up between fusing part and fixed part.
The utility model has the advantages that: the utility model discloses explosion-proof type lithium cell is when using, through setting up fusing part between explosion-proof aluminum sheet and steel cap, need not like this to set up utmost point ear inside the steel casing, staff's the operation degree of difficulty has been reduced like this, avoided in the installation because the lithium cell inner space is effective, and utmost point ear partly welds on explosion-proof aluminum sheet, and the fusing part of utmost point ear then sets up perpendicularly in the steel cap inner chamber, the space is more effective between utmost point ear and the explosion-proof aluminum sheet, make utmost point ear welding more difficult, the welding degree of difficulty of utmost point ear has been improved, be not convenient for staff's operation, the problem of work efficiency has just also been reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view of the present invention;
fig. 2 is a plan view of a tab in the present invention;
fig. 3 is a partially enlarged view of a in fig. 1.
In the figure: 1. the anti-explosion aluminum sheet comprises a steel shell, 2, an anti-explosion aluminum sheet, 3, a steel cap, 4, a sealing ring, 5, a pole lug, 501, a fixing part, 502, a fusing part, 503, a support leg, 6 and an insulating layer.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Examples
As shown in fig. 1-3, an explosion-proof lithium battery comprises a steel shell 1, an explosion-proof aluminum sheet 2, a steel cap 3 and a sealing ring 4, the steel cap 3 is arranged on the explosion-proof aluminum sheet 2, the explosion-proof aluminum sheet 2 is arranged on the steel shell 1, the sealing ring 4 is arranged between the explosion-proof aluminum sheet 2 and the steel shell 1, the steel cap 3 is positioned at one end of the steel shell 1, and also comprises a pole ear 5 and an insulating layer 6, the pole ear 5 is arranged between the steel cap 3 and the explosion-proof aluminum sheet 2, the tab 5 comprises a fixing part 501 and a fusing part 502, the fixing part 501 is fixedly connected to the explosion-proof aluminum sheet 2, the fusing part 502 is fixedly connected to the steel cap 3, the fusing part 502 has legs 503 extending outwards, one end of the leg 503 is disposed on the fixing portion 501, a part of the insulating layer 6 is disposed between the fusing portion 502 and the explosion-proof aluminum sheet 2, and the other part of the insulating layer 6 is disposed between the steel cap 3 and the explosion-proof aluminum sheet 2.
The fusing part 502 is a semi-closed ring structure, the fusing part 502 is sleeved outside the fixing part 501, and the supporting leg 503 is arranged between the fusing part 502 and the fixing part 501. The legs 503 are arranged spirally between the fusing part 502 and the fixing part 501 of the ring structure.
When the explosion-proof lithium battery is used, firstly, an explosion-proof aluminum sheet 2 is welded with a fixing part 501 of a tab 5, meanwhile, an insulating layer 6 is placed between a fusing part 502 of the tab 5 and the explosion-proof aluminum sheet 2, the insulating layer 6 is also arranged between the explosion-proof aluminum sheet 2 and a steel cap 3, then the steel cap 3 is placed on the fusing part 502, at the moment, the steel cap 3 is welded with the fusing part 502 of the tab 5 together to complete the installation of a lithium battery cap assembly, finally, the cap assembly is installed on an opening of a steel shell 1, and a sealing ring 4 is arranged between the steel shell 1 and the explosion-proof aluminum sheet 2, so that the tab 5 is not required to be arranged inside the steel shell 1, the tab 5 is positioned between the explosion-proof aluminum sheet 2 and the steel cap 3, and the difficulty in the installation;
meanwhile, the cross sectional area of the supporting leg 503 on the fusing part 502 is smaller than the cross sectional area of the fusing part 502 and the cross sectional area of the fixing part 501, so that the supporting leg 503 can be fused in time when the supporting leg 503 between the fusing part 502 and the fixing part 501 meets a large current, the fixing part 501 and the fusing part 502 are disconnected, and the lithium battery is prevented from exploding.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. The utility model provides an explosion-proof type lithium cell, includes steel casing (1), explosion-proof aluminum sheet (2), steel cap (3) and sealing washer (4), steel cap (3) set up on explosion-proof aluminum sheet (2), explosion-proof aluminum sheet (2) set up on steel casing (1), sealing washer (4) set up between explosion-proof aluminum sheet (2) and steel casing (1), steel cap (3) are located the one end of steel casing (1), its characterized in that: still include utmost point ear (5) and insulating layer (6), utmost point ear (5) set up between steel hat (3) and explosion-proof aluminum sheet (2), utmost point ear (5) are including fixed part (501) and fusing part (502), fixed part (501) fixed connection is on explosion-proof aluminum sheet (2), fusing part (502) link firmly on steel hat (3), fusing part (502) have outside extension have stabilizer blade (503), the one end setting of stabilizer blade (503) is on fixed part (501), the partly setting of insulating layer (6) is between fusing part (502) and explosion-proof aluminum sheet (2), another part setting of insulating layer (6) is between steel hat (3) and explosion-proof aluminum sheet (2).
2. The explosion-proof lithium battery of claim 1, wherein: fusing portion (502) is semi-closed annular structure, fusing portion (502) cover is established outside fixed part (501), stabilizer blade (503) set up between fusing portion (502) and fixed part (501).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920633071 | 2019-05-05 | ||
| CN2019206330713 | 2019-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040384U true CN210040384U (en) | 2020-02-07 |
Family
ID=69345588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920808011.0U Active CN210040384U (en) | 2019-05-05 | 2019-05-30 | Explosion-proof lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040384U (en) |
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2019
- 2019-05-30 CN CN201920808011.0U patent/CN210040384U/en active Active
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