A thin uniform and compact oxide layer (COL) was synthesized a on an Al foil as a current collectorfor Li-ion battery cathode by an oxidation process using KMnO4 as an oxidant. The oxide compositemainly consists of manganese and aluminium oxides which were determined by EDX technique. Themorphologies of the as-prepared COL modified Al current collector were characterized by AFM andSEM. Electrochemical measurements were performed to evaluate the corrosion behaviour of thecurrent collectors in Li-ion battery (LIB) electrolyte. And the adhesion property of current collectors surface to battery electrode materials layer was examined using a peel test technique. It was found theCOL on an Al current collector can effectively protect it from corrosion and also exhibits goodadhesion properties to the electrode materials layer. Such good properties are quite beneficial to theelectrochemical performance and cyclability of Li-ion batteries for extensive cycle life test evaluationswhich were confirmed by electrochemical characterizations and cycle life tests.
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