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China Cheap price Copper Paper - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN

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  • China Cheap price Copper Paper - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN

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Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction for Cable Wrapping Foil, Copper Sheet, Thin Brass Strips, To acquire a consistent, profitable, and constant advancement by getting a competitive advantage, and by continuously increasing the price added to our shareholders and our employee.
China Cheap price Copper Paper - 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

6μm

7μm

8μm

9/10μm

12μm

15μm

20μm

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

Width Tolerance

Mm

-0/+2

Length Tolerance

m

-0/+10

Pinhole

Pcs

None

Change of Color

130℃/10min

150℃/10min

None

Wave or Wrinkle

—-

Width≤40mm one allow

Width≤30mm one allow

Appearance

—-

No drape, scratch, pollution, oxidation, discoloration and so on that effect using

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:

China Cheap price Copper Paper - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN detail pictures

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Along with the "Client-Oriented" small business philosophy, a rigorous high-quality handle system, highly developed producing machines and a powerful R&D group, we always supply high-quality products and solutions, fantastic services and aggressive costs for China Cheap price Copper Paper - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN , The product will supply to all over the world, such as: Saudi Arabia, Italy, Cyprus, Welcome any of your inquiries and concerns for our products. We look forward to establishing a long-term business relationship with you in the near future. Contact us today. We are the first business partner for you!
    • This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
    5 Stars By jari dedenroth from Frankfurt - 2017.12.02 14:11
    The company has a good reputation in this industry, and finally it tured out that choose them is a good choice.
    5 Stars By Sophia from Ireland - 2017.01.28 18:53
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