Electrolytic copper foil for lithium batteries

10u*200MM*5 meters double light/shinny. 

Description

Electrolytic copper foil is an essential component of lithium-ion batteries and mainly serves as the negative electrode current collector. It has good conductivity, flexibility, a mature manufacturing process, and a relatively low price. The weight of copper foil accounts for approximately 13% of the total mass of a typical lithium battery, and the cost accounts for about 8%.

Specifications of Electrolytic Copper Foil

• Thicknesses: 10um
• Width: 200 mm 
• Length: 5 meters 
• Areal density (g/m²): 85-87
• Composition: Cu ??99.8%, Fe < 0.0010%, Bi < 0.00020%, Pb < 0.0005%
• Tensile strength : ??305 MPa
• Normal elongation: 3.0%
• High-temperature elongation (180??): 2.5%
• Anti oxidization (heating at 230?? for 30min): No oxidation of points on the surface. The color does not change.
• Surface roughness: Less than 0.35 um for the drum side, Less than 4.0 um for the matte side
• Surface tension (dyne/cm): 68 drum side and matte side.