CN208970617U - A kind of tab with fuse protection function - Google Patents
A kind of tab with fuse protection function Download PDFInfo
- Publication number
- CN208970617U CN208970617U CN201821641772.3U CN201821641772U CN208970617U CN 208970617 U CN208970617 U CN 208970617U CN 201821641772 U CN201821641772 U CN 201821641772U CN 208970617 U CN208970617 U CN 208970617U
- Authority
- CN
- China
- Prior art keywords
- tab
- layer
- spelter
- utility
- protection function
- 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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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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The tab with fuse protection function that the utility model disclosed and provided a kind of simple structure and reasonable design, improves usage safety performance.The technical scheme adopted by the utility model is the utility model is a kind of tab with fuse protection function; the tab is the positive pole ear of lithium ion polymer battery; at least one side of the end of the tab is provided with spelter layer, and the tab is connected by the spelter layer with external connection terminals.The technical field of battery pole ear design.
Description
Technical field
The utility model relates to a kind of tabs with fuse protection function.
Background technique
The anode ear of lithium ion polymer battery is usually aluminium or alumel currently on the market, due to both materials
Fusing point is not sufficiently low, and resistivity is smaller, make its by high current tend not in time fuse cause heat constantly to accumulate biography
It passs, in this case, cell internal pressure can constantly increase, and may cause the perils such as combustion explosion.
China Patent Publication No. is that the utility model of CN202196821U discloses a kind of anode composite of dynamic lithium battery
Tab, it is by improving battery security and reduction internal resistance in anode ear end plated with nickel phosphorus or nickel tin composite layer to reach
Effect, but the problem i.e. presence that the tab can not be still eliminated when passing through high current as described in above-mentioned tab may cause battery
The security risk of explosion.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of simple structure and reasonable design, improve safety in utilization
The tab with fuse protection function of energy.
The technical scheme adopted by the utility model is the utility model is a kind of tab with fuse protection function,
The tab is the positive pole ear of lithium ion polymer battery, at least one side of the end of the tab is provided with spelter
Layer, the tab are connected by the spelter layer with external connection terminals.
In the above scheme, the utility model weld between positive pole ear and external connection terminals plates one layer of zinc,
And using spelter layer to connecting tab and external connection terminals；Zinc fusing point is smaller than aluminium, and the big feature of resistivity ratio aluminium is passing through
Zinc-plated tab first fuses than aluminium pole ears when larger current, causes inside battery breaking, avoids dangerous further upgrading.So using
The battery of the tab of the utility model can melt in time at anode with external connection terminals weld when high current passes through
It is disconnected, open circuit is formed, avoids that the more serious danger such as combustion explosion occur, improves the security performance of battery, considerable warp can be brought
Ji and social benefit.
Further, the spelter layer coats the side end of the tab, and the thickness of the spelter layer is uniform and equal.
In the above scheme, when spelter layer cladding end can be welded to connect to avoid tab and external connection terminals, tab
Part of the surface and external connection terminals be directly connected to cause to lose the meaning of design spelter layer.In addition, thickness is equal uniformly
It can guarantee tab and external connection terminals welding effect.
Further, the tab is being provided with throat structure by the lower section at the spelter layer cladding.
In the above scheme, tab itself design throat structure can make the width at throat structure more narrow,
When passing through larger current, tab is easier to fuse at throat structure, can be to avoid battery explosion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cooperation schematic diagram of tab and external connection terminals.
Specific embodiment
As shown in Figures 1 and 2, specific embodiment of the present utility model is: the utility model is a kind of with fusing guarantor
The tab of protective function, the tab 1 be lithium ion polymer battery positive pole ear, the end of the tab 1 at least one
Side is provided with spelter layer 2, and the tab 1 is connected by the spelter layer 2 with external connection terminals 3.The utility model exists
Weld plates one layer of zinc between positive pole ear and external connection terminals 3, and using spelter layer 2 to connecting tab 1 and outside
Connection terminal 3；Zinc fusing point is smaller than aluminium, the big feature of resistivity ratio aluminium, and when passing through larger current, zinc-plated tab is than aluminium pole ears elder generation
Fusing causes inside battery breaking, avoids dangerous further upgrading.So the battery of the tab using the utility model, big
It when electric current passes through, can fuse in time at anode with 3 weld of external connection terminals, form open circuit, avoid occurring to burn quick-fried
Fried equal more serious danger, improves the security performance of battery, can bring considerable economic and social profit.
Further, the spelter layer 2 coats the side end of the tab 1, and the thickness of the spelter layer 2 is uniformly and phase
Deng.When spelter layer 2 coats end and can be welded to connect to avoid tab 1 and external connection terminals 3, the part of the surface of tab 1 and outer
Portion's connection terminal 3 is directly connected to lead to lose the meaning of design spelter layer 2.In addition, thickness is equal can uniformly to guarantee tab 1
With 3 welding effect of external connection terminals.
Further, the tab 1 is being provided with throat structure 4 by the lower section at 2 cladding of spelter layer.Throat structure
Width at 4 is more narrow, and tab 1 itself design throat structure 4 can make when passing through larger current, and tab 1 is in necking
4 are easier to fuse at structure, can be to avoid battery explosion.
The thickness of spelter layer 2 can according to the handling capacity of the purposes electric current of battery require be determined, spelter layer 2 more it is thick then
Resistance is bigger on same weld area, and calorific value just carries easier fusing greatly when same current passes through.
The utility model innovates tab used in lithium ion battery manufacturing process, by positive pole ear with
Positive terminal weld carries out zinc-plated, raising weld resistivity, and reduces the fusing point of weld, compared to aluminium pole ears by big
It is easier to fuse when electric current, avoids that bigger danger occurs, enhance tab to the defencive function of battery, safety can be effectively improved
Energy.The utility model is applicable not only to various types of lithium ion polymer batteries, is also applied for other types of battery.
The utility model can be used for the technical field of battery pole ear design.
Claims (3)
1. a kind of tab with fuse protection function, it is characterised in that: the tab (1) be lithium ion polymer battery just
At least one side of pole tab, the end of the tab (1) is provided with spelter layer (2), and the tab (1) passes through the spelter
Layer (2) is connected with external connection terminals (3).
2. a kind of tab with fuse protection function according to claim 1, it is characterised in that: the spelter layer (2)
The side end of the tab (1) is coated, the thickness of the spelter layer (2) is uniform and equal.
3. a kind of tab with fuse protection function according to claim 2, it is characterised in that: the tab (1) exists
Throat structure (4) are provided with by the lower section at spelter layer (2) cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641772.3U CN208970617U (en) | 2018-10-10 | 2018-10-10 | A kind of tab with fuse protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641772.3U CN208970617U (en) | 2018-10-10 | 2018-10-10 | A kind of tab with fuse protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208970617U true CN208970617U (en) | 2019-06-11 |
Family
ID=66759298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821641772.3U Expired - Fee Related CN208970617U (en) | 2018-10-10 | 2018-10-10 | A kind of tab with fuse protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208970617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548600A (en) * | 2021-06-30 | 2022-12-30 | 宁德时代新能源科技股份有限公司 | Battery monomer, battery and consumer |
-
2018
- 2018-10-10 CN CN201821641772.3U patent/CN208970617U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548600A (en) * | 2021-06-30 | 2022-12-30 | 宁德时代新能源科技股份有限公司 | Battery monomer, battery and consumer |
| CN115548600B (en) * | 2021-06-30 | 2023-11-03 | 宁德时代新能源科技股份有限公司 | Battery monomer, battery and electric equipment |
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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 |
Granted publication date: 20190611 Termination date: 20191010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |