China wholesale Automotive Interior Coatings - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN
China wholesale Automotive Interior Coatings - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN Detail:
Product Introduction
Electrolytic copper foil for lithium batteries is a copper foil developed and produced by CIVEN METAL specifically for the lithium battery manufacturing industry. This electrolytic copper foil has the advantages of high purity, low impurities, good surface finish, flat surface, uniform tension, and easy coating. With higher purity and better hydrophilic, the electrolytic copper foil for batteries can effectively increase the charge and discharge times and extend the cycle life of batteries. At the same time, CIVEN METAL can slit according to customer’s requirements to meet customer’s material needs for different battery products.
Specifications
CIVEN can provide double-sided optical lithium copper foil in different widths from 4.5 to 20µm nominal thickness.
Performance
The products have the characteristics of symmetrical double-sided structure, metal density close to the theoretical density of copper, very low surface profile, high elongation and tensile strength (see Table 1).
Applications
It can be used as anode carrier and collector for lithium-ion batteries.
Advantages
Compared with single-sided gross and double-sided gross lithium copper foil, its contact area increases exponentially when it is bonded with the negative electrode material, which can significantly reduce the contact resistance between the negative electrode collector and the negative electrode material and improve the symmetry of the negative electrode sheet structure of lithium-ion batteries. Meanwhile, the double-sided light lithium copper foil has good resistance to cold and heat expansion, and the negative electrode sheet is not easy to break during the charging and discharging process of the battery, which can prolong the service life of the battery.
Table1. Performance
Test Item |
Unit |
Specification |
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6μm |
7μm |
8μm |
9/10μm |
12μm |
15μm |
20μm |
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Cu Content |
% |
≥99.9 |
||||||
Area Weight |
mg/10cm2 |
54±1 |
63±1.25 |
72±1.5 |
89±1.8 |
107±2.2 |
133±2.8 |
178±3.6 |
Tensile Strength(25℃) |
Kg/mm2 |
28~35 |
||||||
Elongation(25℃) |
% |
5~10 |
5~15 |
10~20 |
||||
Roughness(S-Side) |
μm(Ra) |
0.1~0.4 |
||||||
Roughness(M-Side) |
μm(Rz) |
0.8~2.0 |
0.6~2.0 |
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Width Tolerance |
Mm |
-0/+2 |
||||||
Length Tolerance |
m |
-0/+10 |
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Pinhole |
Pcs |
None |
||||||
Change of Color |
130℃/10min 150℃/10min |
None |
||||||
Wave or Wrinkle |
—- |
Width≤40mm one allow |
Width≤30mm one allow |
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Appearance |
—- |
No drape, scratch, pollution, oxidation, discoloration and so on that effect using |
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Winding method |
—- |
The winding when facing up S sideWhen the winding tension in the stable, no loose roll phenomenon. |
Note: 1. Copper foil oxidation resistance performance and surface density index can be negotiated.
2. The performance index is subject to our testing method.
3. The quality guarantee period is 90 days from the date of receipt.
Product detail pictures:
Related Product Guide:
Well-run devices, expert profits group, and better after-sales companies; We have been also a unified huge family, everybody keep on with the organization worth "unification, determination, tolerance" for China wholesale Automotive Interior Coatings - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN , The product will supply to all over the world, such as: Luxembourg, Iraq, Benin, Our Company policy is "quality first, to be better and stronger, sustainable development" . Our pursuit goals is "for society, customers, employees, partners and enterprises to seek reasonable benefit". We aspirate to do cooperate with all different the auto parts manufacturers, repair shop, auto peer , then create a beautiful future! Thank you for taking time to browse our website and we would welcome any suggestions you may have that can help us to improve our site.
By Karen from Tajikistan - 2017.01.28 19:59
We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.
By John biddlestone from El Salvador - 2017.05.02 11:33