CN206639876U - A kind of Double-cover lithium battery - Google Patents
A kind of Double-cover lithium battery Download PDFInfo
- Publication number
- CN206639876U CN206639876U CN201720131210.3U CN201720131210U CN206639876U CN 206639876 U CN206639876 U CN 206639876U CN 201720131210 U CN201720131210 U CN 201720131210U CN 206639876 U CN206639876 U CN 206639876U
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- China
- Prior art keywords
- hole
- lid
- lithium battery
- circular ring
- double
- Prior art date
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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
-
- 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 discloses a kind of Double-cover lithium battery, including housing, the first lid, the second lid, positive plate, negative plate, barrier film, positive terminal and negative terminal, first lid is located at second side of covering, and the first lid has first through hole and the second through hole, and the second lid has third through-hole and fourth hole；First lid has multiple fifth holes, and the second lid has the 6th through hole, and the 6th through hole is welded with burst disk；There is the first sealing gasket at first through hole, second through hole has the second sealing gasket, first sealing gasket has the first positioning hole, second sealing gasket has the second positioning hole, and second lid has the first locating dowel engaged with first positioning hole and the second locating dowel engaged with second positioning hole.Lithium battery good airproof performance of the present utility model, and it is explosion-proof.
Description
Technical field
It the utility model is related to field of batteries, and in particular to a kind of Double-cover lithium battery.
Background technology
Lithium battery has the features such as in light weight, reserve of electricity is big, and used lithium cell core, mainly includes a housing at present,
Be placed with electrolyte solution, positive plate and negative plate built in housing, lithium battery also includes positive terminal and negative terminal, the positive terminal and
Generally there is sealing gasket at negative terminal.But existing sealing gasket there may be rotation due to being circular after long-time use
Situations such as loosening.
Utility model content
Purpose of utility model：A kind of the defects of the utility model is intended to overcome prior art, there is provided Double-cover lithium battery.
Technical scheme：A kind of Double-cover lithium battery, including housing, the first lid, the second lid, positive plate, negative plate, barrier film,
Positive terminal and negative terminal, first lid are located at second side of covering, and first lid has what is passed through by the positive terminal
First through hole and the second through hole passed through by the negative terminal, second lid is with the third through-hole passed through by the positive terminal
With the fourth hole passed through by the negative terminal；First lid has multiple fifth holes, and second lid has the 6th to lead to
Hole, the 6th through hole are welded with burst disk；There is the first sealing gasket, first sealing gasket includes at the first through hole
First cylinder ring portion and the first circular ring plate portion for being connected to the first cylinder ring portion bottom, the first circular ring plate portion bottom have the
A positioning hole, the first circular ring plate portion upper surface abut the lower surface of first lid；Second through hole has second
Sealing gasket, second sealing gasket include the second cylinder ring portion and are connected to the second circular ring plate portion of the second cylinder ring portion bottom,
The second circular ring plate portion bottom has the second positioning hole, and the second circular ring plate portion upper surface abuts the following table of first lid
Face, second cap upper surface have the first locating dowel engaged with first positioning hole and engaged with second positioning hole
The second locating dowel.
Further, the positive terminal passes through through the first cylinder ring portion and the first circular ring plate portion, the negative terminal
The second cylinder ring portion and the second circular ring plate portion, the first cylinder ring portion pass through the first through hole, second cylinder
Ring portion passes through second through hole；First positioning hole, the first locating dowel, the second positioning hole and the second locating dowel have two
It is individual.
Further, the burst disk laser welding is in the 6th through hole.
Further, the quantity of the fifth hole is more than or equal to 5.
Further, the 6th through hole and burst disk are circle.
Further, distance of the lower surface of first lid apart from the upper surface of the described second lid is more than 0.5cm.
Beneficial effect：Lithium battery of the present utility model, sealing ring will not rotate, and can be explosion-proof.
Brief description of the drawings
Fig. 1 is lithium battery schematic diagram.
Embodiment
Reference：11 positive terminals；21 negative terminals；12.1 first cylinder ring portions；12.2 first circular ring plate portions；22.1 second
Cylinder ring portion；22.2 second circular ring plate portions；31 first lids；32 second lids；30 housings；32.1 the first locating dowel；32.2 second is fixed
Position post；31.1 fifth holes；32.3 burst disks.
A kind of Double-cover lithium battery, including housing 30, the first lid 31, the second lid 32, positive plate, negative plate, barrier film, positive pole
Post and negative terminal, positioned at the top of the second lid 32, first lid 31 has to be worn first lid 31 by the positive terminal 11
The first through hole crossed and the second through hole passed through by the negative terminal 21, second lid 32 has to be passed through by the positive terminal 11
Third through-hole and the fourth hole that is passed through by the negative terminal 21；First lid 31 has multiple fifth holes, and described
Two lids 32 have the 6th through hole, and the 6th through hole is welded with burst disk 32.3；There is the first sealing at the first through hole
Pad, first sealing gasket include the first cylinder ring portion 12.1 and are connected to the first circular ring plate of the bottom of the first cylinder ring portion 12.1
Portion 12.2, the bottom of the first circular ring plate portion 12.2 have the first positioning hole, and the upper surface of the first circular ring plate portion 12.2 abuts
The lower surface of first lid 31；Second through hole has the second sealing gasket, and second sealing gasket includes the second cylinder
Ring portion 22.1 and the second circular ring plate portion 22.2 for being connected to the bottom of the second cylinder ring portion 22.1, the bottom of the second circular ring plate portion 22.2
Portion has the second positioning hole, and the upper surface of the second circular ring plate portion 22.2 abuts the lower surface of first lid 31, and described second
The upper surface of lid 32 has the first locating dowel 32.1 engaged with first positioning hole and engaged with second positioning hole the
Two locating dowels 32.2.The positive terminal 11 passes through the first cylinder ring portion and the first circular ring plate portion, and the negative terminal 21 passes through
The two cylinders ring portion and the second circular ring plate portion, the first cylinder ring portion pass through the first through hole, second cylinder ring
Portion passes through second through hole；First positioning hole, the first locating dowel, the second positioning hole and the second locating dowel have two.
The laser welding of burst disk 32.3 is in the 6th through hole.The quantity of the fifth hole is more than or equal to 5.Described 6th
Through hole and burst disk are circle.Distance of the lower surface of first lid 31 apart from the upper surface of second lid 32 is more than
0.5cm。
Lithium battery of the present utility model, first and second sealing gasket are clamped by first and second lid, good seal performance, and due to setting
Locating dowel and positioning hole, sealing gasket will not rotate.And short-circuit when occurring, when air pressure steeply rises in housing, burst disk is broken
Split, so as to pressure release.And the diameter of fifth hole is less than the diameter of burst disk, so as to which fifth hole can prevent that burst disk is random
Fly.
Although the utility model is illustrated and described with regard to preferred embodiment, those skilled in the art should manage
Solution, without departing from claim limited range of the present utility model, the utility model can be carried out various change and
Modification.
Claims (6)
- A kind of 1. Double-cover lithium battery, it is characterised in that including housing, the first lid, the second lid, positive plate, negative plate, barrier film, Positive terminal and negative terminal, first lid are located at second side of covering, and first lid has what is passed through by the positive terminal First through hole and the second through hole passed through by the negative terminal, second lid is with the third through-hole passed through by the positive terminal With the fourth hole passed through by the negative terminal；First lid has multiple fifth holes, and second lid has the 6th to lead to Hole, the 6th through hole are welded with burst disk；There is the first sealing gasket, first sealing gasket includes at the first through hole First cylinder ring portion and the first circular ring plate portion for being connected to the first cylinder ring portion bottom, the first circular ring plate portion bottom have the A positioning hole, the first circular ring plate portion upper surface abut the lower surface of first lid；Second through hole has second Sealing gasket, second sealing gasket include the second cylinder ring portion and are connected to the second circular ring plate portion of the second cylinder ring portion bottom, The second circular ring plate portion bottom has the second positioning hole, and the second circular ring plate portion upper surface abuts the following table of first lid Face, second cap upper surface have the first locating dowel engaged with first positioning hole and engaged with second positioning hole The second locating dowel.
- 2. Double-cover lithium battery according to claim 1, it is characterised in that the positive terminal passes through first cylinder ring Portion and the first circular ring plate portion, the negative terminal pass through the second cylinder ring portion and the second circular ring plate portion, first cylinder ring Portion passes through the first through hole, and the second cylinder ring portion passes through second through hole；First positioning hole, the first positioning Post, the second positioning hole and the second locating dowel have two.
- 3. Double-cover lithium battery according to claim 1, it is characterised in that the burst disk laser welding is the described 6th Through hole.
- 4. Double-cover lithium battery according to claim 1, it is characterised in that the quantity of the fifth hole is more than or equal to 5 It is individual.
- 5. Double-cover lithium battery according to claim 1, it is characterised in that the 6th through hole and burst disk are circle Shape.
- 6. Double-cover lithium battery according to claim 1, it is characterised in that the lower surface of first lid is apart from described the The distance of the upper surface of two lids is more than 0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720131210.3U CN206639876U (en) | 2017-02-14 | 2017-02-14 | A kind of Double-cover lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720131210.3U CN206639876U (en) | 2017-02-14 | 2017-02-14 | A kind of Double-cover lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206639876U true CN206639876U (en) | 2017-11-14 |
Family
ID=60252383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720131210.3U Active CN206639876U (en) | 2017-02-14 | 2017-02-14 | A kind of Double-cover lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206639876U (en) |
-
2017
- 2017-02-14 CN CN201720131210.3U patent/CN206639876U/en active Active
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| GR01 | Patent grant |