Shenzhen Optimum Battery Copper Foil Processing
Copper foil is a key conductive material in lithium ion batteries and printed circuit boards. It is a kind of negative electrolytic material, a thin, continuous metal foil deposited on the substrate of circuit board.
Shenzhen Optimum Battery Copper Foil Processing
Copper foil is not a traditional metal copper product. It combines design concepts such as composite material and nano material technology, and different internal microstructures, resulting in different properties from traditional pure copper. The application of copper foil mainly focuses on the characteristics of conduction, heat conduction and electromagnetic wave shielding.
Shenzhen Optimum Battery Copper Foil Processing
The foil of the clad plate can be copper, nickel, aluminum and other metal foils. However, considering such factors as the conductivity, solderability, elongation, adhesion to the substrate and price of gold, it is considered appropriate except for special purposes.
Shenzhen Optimum Battery Copper Foil Processing
Copper foil is divided into calendered copper foil and electrolytic copper foil according to the preparation process, which accounts for the vast majority of the market. According to the Copper Foil Branch of China Electricity Association (CCFA), at present, domestic manufacturers mainly focus on the production of electrolytic copper foil. In 19 years, the domestic production capacity of electrolytic copper foil is expected to be close to 600000 tons, while that of rolled copper foil is only about 10000 tons.
Shenzhen Optimum Battery Copper Foil Processing
Copper foil can be divided into calendered copper foil and electrolytic copper foil, which are mainly used for flexible printed circuits and other special purposes. In the production of clad laminates, a large number of applications are. As for the purity of copper, IEC-249-34 and Chinese standards stipulate that it shall not be lower than 99.8%.
