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China Supplier Cooling Copper Foil - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN

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  • China Supplier Cooling Copper Foil - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN

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We can easily normally satisfy our respected buyers with our excellent high-quality, excellent selling price and good service due to we've been far more expert and more hard-working and do it in cost-effective way for Rolled Copper Flashing, Copper Foil Sheets, High Purity Nickel Foil, We will wholeheartedly welcome all clients in the industry both at home and abroad to cooperate hand in hand, and create a bright future together.
China Supplier Cooling Copper Foil - 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 Supplier Cooling Copper Foil - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN detail pictures

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We know that we only thrive if we could guarantee our combined price tag competiveness and quality advantageous at the same time for China Supplier Cooling Copper Foil - ED Copper Foils for Li-ion Battery (Double-shiny) – CIVEN , The product will supply to all over the world, such as: Russia, European, Bulgaria, By continuous innovation, we will provide you with more valuable products and services, and also make a contribution for the development of the automobile industry at home and abroad. Both domestic and foreign merchants are strongly welcomed to join us to grow together.
    • The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Sharon from Borussia Dortmund - 2017.11.11 11:41
    The company keeps to the operation concept "scientific management, high quality and efficiency primacy, customer supreme", we have always maintained business cooperation. Work with you,we feel easy!
    5 Stars By Ann from Slovenia - 2017.06.19 13:51
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