CN206293485U - Lithium battery cover plate with Copper-Aluminum compound integration negative terminal - Google Patents
Lithium battery cover plate with Copper-Aluminum compound integration negative terminal Download PDFInfo
- Publication number
- CN206293485U CN206293485U CN201621406313.8U CN201621406313U CN206293485U CN 206293485 U CN206293485 U CN 206293485U CN 201621406313 U CN201621406313 U CN 201621406313U CN 206293485 U CN206293485 U CN 206293485U
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- CN
- China
- Prior art keywords
- negative
- copper
- cover plate
- negative terminal
- aluminum compound
- 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
Lithium battery cover plate with Copper-Aluminum compound integration negative terminal, including the cover plate matrix of aluminum, burst disk, anode plate, positive strap, negative plates and copper negative straps；The negative plates form insulation and are connected by PFA plastic injections and the cover plate matrix；The negative terminal of Copper-Aluminum compound integration is provided with the negative plates, the top of the negative terminal is aluminium body, bottom is copper body, and aluminium body portion and the negative plates of the negative terminal form close contact and are connected in an interference fit；The copper body portion of the negative terminal is formed a fixed connection with the negative straps by ultrasonic bonding.The utility model is novel in design, it is rational in infrastructure, the aluminium body portion of negative terminal is in close contact with negative plates interference, copper body portion and the negative straps of negative terminal are welded and fixed, therefore in the absence of two kinds of physical connections of material, so that copper negative straps are connected firmly with aluminum negative plates, contact reliable.
Description
Technical field
The utility model is related to lithium battery structure technical field, relates in particular to a kind of with Copper-Aluminum compound Integral load
The lithium battery cover plate of extreme son.
Background technology
Now, the application of lithium battery is extremely wide.Manufacture lithium battery when, be not only to have ensured electric conductivity again save be manufactured into
This, the negative straps in lithium battery cover plate use copper material, and other metalworks use aluminium material, copper negative straps and aluminium
Matter negative plates are typically with welding or riveting or the switching of other physics makes it be connected, the thing of this non-same material
Reason connection, because two kinds of materials have the different coefficients of expansion, is easy to occur releasing when expanding with heat and contract with cold, reflection to lithium battery
It is actually used in be exactly that lithium battery cannot be used normally.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of copper negative straps and is connect with aluminum negative plates
Touch firm lithium battery cover plate.
For the technical scheme that solution above-mentioned technical problem is used is：Lithium electricity with Copper-Aluminum compound integration negative terminal
Pond cover plate, including the cover plate matrix of aluminum, burst disk, anode plate, positive strap, negative plates and copper negative pole connection
Piece；The negative plates form insulation and are connected by PFA plastic injections and the cover plate matrix；Copper is provided with the negative plates
The negative terminal of aluminium composite integrated, the top of the negative terminal is aluminium body, bottom is copper body, the aluminium body of the negative terminal
Portion forms close contact and is connected in an interference fit with the negative plates；The copper body portion of the negative terminal is negative with described
Pole connection sheet is formed a fixed connection by ultrasonic bonding.
Further, the periphery of the aluminium body portion top surface of the negative terminal forms close with the negative plates by laser welding
Envelope connection.
Further, the thickness in the copper body portion of the negative terminal is 1.5 millimeters to 2.5 millimeters.
Further, the anode plate forms insulation and is connected by PFA plastic injections and the cover plate matrix；The positive pole
The positive terminal of aluminum is provided with pole plate, the top of the positive terminal is formed in an interference fit with the anode plate
Connection is in close contact, the bottom of the positive terminal is formed a fixed connection with the positive strap by ultrasonic bonding.
Further, the periphery of the positive terminal top surface is formed by laser welding with the anode plate and is tightly connected.
Further, the burst disk is formed a fixed connection by laser welding with the cover plate matrix.
The utility model is novel in design, rational in infrastructure, and copper negative straps pass through Copper-Aluminum compound with aluminum negative plates
The negative terminal of integration is attached, and aluminium body portion and the negative plates interference of negative terminal are in close contact, the copper of negative terminal
Body portion is welded and fixed with negative straps, therefore in the absence of two kinds of physical connections of material, so that copper negative straps
It is connected firmly with aluminum negative plates, contacts reliable.
Brief description of the drawings
Fig. 1 is the top view of the utility model embodiment；
Fig. 2 is the cross-sectional view of line A-A in Fig. 1；
Fig. 3 is the enlarged drawing in A portions in Fig. 2.
Each label is respectively in figure：（10）Cover plate matrix,（20）Burst disk,（30）Anode plate,（40）Positive strap,
（50）Negative plates,（60）Negative straps,（70）PFA plastics,（80）Positive terminal,（90）Negative terminal,（91）Aluminium body portion,
（92）Copper body portion.
Specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model has the lithium battery cover plate of Copper-Aluminum compound integration negative terminal, bag
Cover plate matrix 10, burst disk 20, anode plate 30, positive strap 40, negative plates 50 and the copper negative pole for including aluminum connect
Contact pin 60.
Burst disk 20 is made up of aluminium flake and is provided with indentation on surface, can be quick-fried effectively to control by the width of nick for being formed
Broken pressure.Burst disk 20 is formed a fixed connection by laser welding with cover plate matrix 10, and laser welding deforms small, speed of welding
Hurry up, weldquality is high, pore-free can effectively strengthen the fastness between cover plate matrix 10 and burst disk 20.
Anode plate 30 is molded to be formed to insulate with cover plate matrix 10 by PFA plastics 70 and is connected, the long-term use of PFA plastics 70
Temperature range is -80 DEG C to 260 DEG C, the chemical resistance for having brilliance, also good electrical insulating property, and electrical insulation capability is not
It is influenced by temperature.
The positive terminal 80 of aluminum is provided with anode plate 30, top and the anode plate 30 of positive terminal 80 are matched somebody with somebody with interference
The mode of conjunction forms close contact connection, then is formed by laser welding with anode plate 30 on the periphery of the top surface of positive terminal 80
It is tightly connected, can ensures that positive terminal 80 is connected firmly with anode plate 30 with this；The bottom of positive terminal 80 is connected with positive pole
Piece 40 is formed a fixed connection by ultrasonic bonding, and ultrasonic bonding has the characteristic that speed is fast, weld strength is high, it is possible to
Ensure the connection reliability of positive terminal 80 and positive strap 40 very well.
Negative plates 50 are molded to be formed to insulate with cover plate matrix 10 by PFA plastics 70 and are connected；It is provided with negative plates 50
The negative terminal 90 of Copper-Aluminum compound integration, negative terminal 90 is made by copper aluminum composite material is machined, top be aluminium body, under
Portion is copper body, and the aluminium body portion 91 of negative terminal 90 forms close contact with negative plates 50 and is connected in an interference fit, then
Formed by laser welding with negative plates 50 on the periphery of the top surface of aluminium body portion 91 of negative terminal 90 and be tightly connected；Negative terminal
The thickness in 90 copper body portion 92 is 2 millimeters, and the copper body portion 92 is formed a fixed connection with negative straps 60 by ultrasonic bonding.
The aluminium body portion 91 of negative terminal 90 is firm as the connection of anode plate 30 with the connection of negative plates 50 as positive terminal 80,
The copper body portion 92 of negative terminal 90 is similarly firm with the connection of negative straps 60, so copper negative straps 60 and aluminum
The contact of negative plates 50 is very reliable.
Implementation method of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Implementation method is stated, in the ken that art those of ordinary skill possesses, this practicality can also not departed from
Various changes can be made on the premise of new objective.
Claims (6)
1. have Copper-Aluminum compound integration negative terminal lithium battery cover plate, including aluminum cover plate matrix, burst disk, positive pole pole
Plate, positive strap, negative plates and copper negative straps；It is characterized in that：The negative plates pass through PFA plastic injections
Insulation is formed with the cover plate matrix to be connected；The negative terminal of Copper-Aluminum compound integration is provided with the negative plates, it is described negative
The top of extreme son is aluminium body, bottom is copper body, and the aluminium body portion of the negative terminal is with the negative plates with interference fit
Mode forms close contact connection；The copper body portion of the negative terminal forms solid with the negative straps by ultrasonic bonding
Fixed connection.
2. it is according to claim 1 with Copper-Aluminum compound integration negative terminal lithium battery cover plate, it is characterized in that：It is described
The periphery of the aluminium body portion top surface of negative terminal is formed by laser welding with the negative plates and is tightly connected.
3. it is according to claim 2 with Copper-Aluminum compound integration negative terminal lithium battery cover plate, it is characterized in that：It is described
The thickness in the copper body portion of negative terminal is 1.5 millimeters to 2.5 millimeters.
4. it is according to claim 3 with Copper-Aluminum compound integration negative terminal lithium battery cover plate, it is characterized in that：It is described
Anode plate forms insulation and is connected by PFA plastic injections and the cover plate matrix；Aluminum is provided with the anode plate just
Extreme son, the top of the positive terminal forms close contact and is connected in an interference fit with the anode plate, described
The bottom of positive terminal is formed a fixed connection with the positive strap by ultrasonic bonding.
5. it is according to claim 4 with Copper-Aluminum compound integration negative terminal lithium battery cover plate, it is characterized in that：It is described
The periphery of positive terminal top surface is formed by laser welding with the anode plate and is tightly connected.
6. it is according to claim 5 with Copper-Aluminum compound integration negative terminal lithium battery cover plate, it is characterized in that：It is described
Burst disk is formed a fixed connection by laser welding with the cover plate matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406313.8U CN206293485U (en) | 2016-12-20 | 2016-12-20 | Lithium battery cover plate with Copper-Aluminum compound integration negative terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406313.8U CN206293485U (en) | 2016-12-20 | 2016-12-20 | Lithium battery cover plate with Copper-Aluminum compound integration negative terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206293485U true CN206293485U (en) | 2017-06-30 |
Family
ID=59105215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621406313.8U Expired - Fee Related CN206293485U (en) | 2016-12-20 | 2016-12-20 | Lithium battery cover plate with Copper-Aluminum compound integration negative terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206293485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111290A (en) * | 2023-03-01 | 2023-05-12 | 温州宏丰电工合金股份有限公司 | Copper-aluminum composite pole assembly, preparation method thereof and battery |
-
2016
- 2016-12-20 CN CN201621406313.8U patent/CN206293485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111290A (en) * | 2023-03-01 | 2023-05-12 | 温州宏丰电工合金股份有限公司 | Copper-aluminum composite pole assembly, preparation method thereof and battery |
| CN116111290B (en) * | 2023-03-01 | 2023-10-13 | 温州宏丰电工合金股份有限公司 | Copper-aluminum composite pole assembly, preparation method thereof and battery |
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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: 20170630 Termination date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |