Excellent quality Black Back Copper Foil - ED Copper Foils for Li-ion Battery (Double-matte) – CIVEN

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In the past few years, our business absorbed and digested advanced technologies both equally at home and abroad. In the meantime, our company staffs a group of experts devoted to your advancement of Copper Sheets, Decorative Brass Sheet, Brass Metal Strips, As we are moving forward, we keep an eye on our ever-expanding product range and make improvement to our services.

Excellent quality Black Back Copper Foil - ED Copper Foils for Li-ion Battery (Double-matte) – CIVEN Detail:

Product Introduction

Electrodeposited Copper foil for single (double) sided gross lithium battery is a professional material produced by CIVEN METAL to improve the performance of battery negative electrode coating. The copper foil has a high purity, and after roughening process, it is easier to fit with the negative electrode material and less likely to fall off. CIVEN METAL can also custom slit the material to meet the requirements of different customers’ products.

Specifications

CIVEN METAL can provide single (double) sided gross lithium copper foil of different widths from 8 to 12µm in nominal thickness.

Performance

The product is formed with a columnar grain structure, the roughness of the glossy surface of the double-sided hairy lithium copper foil is rougher than that of the double-sided light lithium copper foil, and its elongation and tensile strength are lower than that of the double-sided light lithium copper foil, among other properties (see Table 1).

Applications

It can be used as anode carrier and collector for lithium-ion batteries.

Advantages

Single (double) side lithium copper foil light (hair) surface is rougher than double-sided light lithium copper foil, its bond with the negative electrode material is more solid, not easy to fall out of the material, and the match with the negative electrode material is strong.

Test Item	Unit	Specification
		Single-Matte				Double-Matte
		8μm	9μm	10μm	12μm	9μm	10μm	12μm
Area Weight	g/m²	70-75	85-90	95-100	105-110	85-90	95-100	105-110
Tensile Strength	Kg/mm²	≥28
Elongation	%	≥2.5				≥3.0
Roughness(Rz)	μm	Conference of parties
Thickness	μm	Conference of parties
Change of Color	(130℃/10min)	No change
Width Tolerance	mm	-0/+2
Appearance	—-	1. The copper foil surface is smooth and level off.2. No obvious concave and convex point, crease, indentation, damage. 3. The color and luster is uniform, no oxidation, corrosion and oil. 4. Trimming flush, no lace and copper powder.
Joint	—-	No more than 1 joint per roll
Cu Content	%	≥99.9
Environment	—-	RoHS Standard
Shelf Life	—-	90 days after received
Weight of Roll	kg	Conference of parties
Packing	—-	Indicated on the package with item name, specification, batch number, net weight, gross weight, RoHS and manufacturers
Storage Condition	—-	1. The warehouse should keep clean, dry, and humidity is under 60% as well as The temperature under 25 ℃.2. The warehouse should be no corrosive gas, chemicals and wet goods.

Table 1. Performance

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.

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To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for Excellent quality Black Back Copper Foil - ED Copper Foils for Li-ion Battery (Double-matte) – CIVEN , The product will supply to all over the world, such as: Nigeria, Paraguay, Israel, Our team knows well the market demands in different countries, and is capable of supplying suitable quality products at the best prices to different markets. Our company has already set up a professional, creative and responsible team to develop clients with the multi-win principle.

Brass Tensile Strength