CN201699075U - Composite anode lug of lithium ion battery - Google Patents
Composite anode lug of lithium ion battery Download PDFInfo
- Publication number
- CN201699075U CN201699075U CN2010201495390U CN201020149539U CN201699075U CN 201699075 U CN201699075 U CN 201699075U CN 2010201495390 U CN2010201495390 U CN 2010201495390U CN 201020149539 U CN201020149539 U CN 201020149539U CN 201699075 U CN201699075 U CN 201699075U
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- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- composite anode
- lug
- positive pole
- 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 - Lifetime
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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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- Cell Electrode Carriers And Collectors (AREA)
Abstract
The utility model discloses a composite anode lug of a lithium ion battery, which comprises an aluminum layer adopted as an outer layer and a copper layer adopted as an inner layer. The composite anode lug of a lithium ion battery is lower in production cost compared with a common copper lug, is fine in welding property, and not only can guarantee excellent conductivity, toughness, heat dissipation property and corrosion resistance, but also is easy for welding and low in production cost. The utility model further discloses a lithium ion battery, which comprises a winding battery cell, and the winding battery cell comprises three composite anode lugs.
Description
Technical field
The utility model relates to a kind of compound positive pole ear of lithium ion battery and adopts a kind of lithium ion battery of this compound positive pole ear.
Background technology
The used lug of lithium ion battery generally adopts copper or aluminum metallic material, and wherein copper has conductivity preferably, high toughness, thermal diffusivity, corrosion resistance, but copper is difficult for welding.Also having a class lug is to electroplate another kind of metal at a kind of skin of metal material, such as in the electronickelling of the outside of copper, the advantage of this class lug is that the weldability of outer plated metal is good, be easy to welding, but electroplating process devices needed and energy increases the production cost of lug.
The utility model content
The utility model purpose is to provide a kind of is convenient to welding, conductivity height, make the compound positive pole ear of simple lithium ion battery.
For achieving the above object, the utility model provides a kind of compound positive pole ear of lithium ion battery, and it comprises as outer field aluminium lamination with as the copper layer of internal layer.
The production cost of the compound positive pole ear of the lithium ion battery that provides of the present utility model is lower than the production cost of general copper polar ear, weldability is good, can not only guarantee good conductivity, toughness, thermal diffusivity and corrosion resistance, and welding easily, production cost is low.
The utility model also provides a kind of lithium ion battery, comprise the electric core of reeling, the electric core of described coiling comprises the compound positive pole ear of 3 above-mentioned lithium ion batteries, and the position of three compound positive pole ears is folded mutually connects to be convenient to three compound positive pole ears, thereby further reduces the internal resistance of battery.
Description of drawings
Fig. 1 is the schematic diagram of compound positive pole ear among the embodiment 1.
Fig. 2 is the schematic diagram of anode pole piece among the embodiment 2.
Fig. 3 is the battery 40C discharge curve that the lug among the embodiment 2 is made.
Fig. 4 is the battery 40C discharge curve that conventional aluminium pole ears is made.
Embodiment
Below with reference to above-mentioned accompanying drawing, embodiment of the present utility model is elaborated.
As shown in Figure 1, the manufacturing process of the compound positive pole ear of lithium ion battery is in the present embodiment: copper rod 2 is inserted in the aluminum pipe 1 of hollow, flatten then, thereby be made into compound positive pole ear.
As shown in Figure 2, in the present embodiment, positive plate as the coiling battery is welded with 3 compound positive pole ears of the battery described in the embodiment 1 before coiling, by the distance between the compound positive pole ear of control battery, guarantee that 3 anode ears can be folded mutually behind battery winding, battery comprises that also negative plate is welded on two copper negative lug above the negative plate.
When making 18650 power-type batteries, adopt the compound positive pole ear of said structure, the battery design capacity is 1100mAh, carry out the high-multiplying power discharge test, test result shows that the battery that this lug is made can bear the above discharging current of 40 multiplying powers as shown in Figure 3.When the lug of ordinary construction discharges more than 40 multiplying powers, its discharge curve as shown in Figure 4, as can be seen from the figure voltage platform has tangible depressed phenomenon, voltage platform is lower.
It should be noted that; any tangible displacement and conversion to components and parts related in the scheme required for protection in the utility model and scheme all should be treated as disclosed or be included within the claimed scope of the utility model by the utility model.
Claims (2)
1. the compound positive pole ear of a lithium ion battery is characterized in that, comprises as outer field aluminium lamination with as the copper layer of internal layer.
2. a lithium ion battery comprises the electric core of reeling, and it is characterized in that the electric core of described coiling comprises the compound positive pole ear of 3 lithium ion batteries as claimed in claim 1, and the position of three compound positive pole ears is folded mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201495390U CN201699075U (en) | 2010-03-30 | 2010-03-30 | Composite anode lug of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201495390U CN201699075U (en) | 2010-03-30 | 2010-03-30 | Composite anode lug of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699075U true CN201699075U (en) | 2011-01-05 |
Family
ID=43400321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201495390U Expired - Lifetime CN201699075U (en) | 2010-03-30 | 2010-03-30 | Composite anode lug of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569714A (en) * | 2012-03-12 | 2012-07-11 | 谢振华 | Positive lug of lithium battery packaged by aluminum-plastic composite film and manufacturing method thereof |
-
2010
- 2010-03-30 CN CN2010201495390U patent/CN201699075U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569714A (en) * | 2012-03-12 | 2012-07-11 | 谢振华 | Positive lug of lithium battery packaged by aluminum-plastic composite film and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: Microvast Power Systems (Huzhou) Co., Ltd. Address before: 313000 Zhejiang Province, Huzhou City Road, sunny Industrial Science and Technology Park building B Patentee before: Microvast Power Systems (Huzhou) Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
|
| CX01 | Expiry of patent term |