english
Русский
Español
العربية
Copper Foil
Copper foil is a critical foundational material for the electronics industry, comprising two major categories: lithium battery copper foil and printed circuit board copper foil.
Lithium battery copper foil serves as the anode current collector for lithium-ion batteries, widely used in electric vehicles, energy storage systems, and consumer electronics.
PCB copper foil is the core substrate material for copper-clad laminates and printed circuit boards; high-end grades such as very-low-profile foil have become essential for AI servers, 5G/6G infrastructure, and advanced packaging.
The core equipment in electrolytic copper foil production is the titanium cathode drum, whose surface finish directly determines the roughness, tensile strength, and elongation of the finished copper foil.
Copper foil production involves roller maintenance and polishing of guide rolls and cathode rolls. Defects on roller surfaces will cause pits, scratches and uneven thickness on copper foil, so precision grinding is required to restore roller surface.
Lean Abrasives's high-end non-woven abrasive roller brushes are engineered specifically for in-line polishing of titanium cathode drums; their three-dimensional open-web structure uniformly removes oxide films and deposits without damaging the drum substrate.
Our high-precision grinding and polishing abrasive belts are suitable for edge trimming and surface finishing after copper foil slitting, helping customers improve the flatness and yield of finished foil products.
