Hitachi Cable expands rolling copper foil products line. The firm developed new high performance products for lithium ion battery and flexible printed circuit board. The firm tries to expand the sales for automobile and electronics devices.
Negative current collector of lithium ion battery needs strength and performance in high temperature. Flexible printed circuit board needs flexibility. Hitachi Cable provides various copper foils for various applications including automotive lithium ion battery. Negative active materials of lithium ion battery could shift from carbon materials to silicon and alloy materials. Hitachi Cable prepares for the materials change by increasing strength and heat resistance of the foil. The firm developed high strength foil with 580 Newton of tensile strength compared with traditional 400 Newton. The firm developed higher heat resistance foil, which can keep 450 Newton of tensile strength in 400 degrees centigrade. The firm developed better flexibility in lower temperature by adding minor additive.
