CHEMICALLY TREATED CURRENT COLLECTOR FOIL MADE OF ALUMINIUM OR AN ALUMINIUM ALLOY

摘要

The invention relates to a current collector foil produced of aluminum or an aluminum alloy, to the use of said current collector foil for batteries or rechargeable batteries, especially rechargeable lithium-ion batteries, and to a method for producing said current collector foil. The aim of the invention is to provide a current collector foil which has excellent conductivity and tensile strength and can yet be produced at low costs. For this purpose, the current collector foil comprises an acid-etched or alkali-etched surface.