Conventional Copper Foil

Composite Copper Foil

Width

Customizable

100-1200mm

Thickness

Customizable

1+4.5+1um

Technical principle

Electrolytic copper + electroplating

Vacuum coating + ion displacement

Constitute

99.5% pure copper

The copper molecules are deposited on the base film under high vacuum, and then the finished product is produced by ion replacement.

Feature

1.The weight per unit area is heavy, the use of metal copper is high, and the cost is high. 

2.The conductivity is high, and the
safety of metal materials is poor.

1. The middle layer is polymer material, light per unit area, less copper usage, reducing cost and metal consumption.

2. The middle layer is an insulating layer, which is good for the safety of battery materials.