Low-temperature preparation of cathode active material

A method of preparing a current collector surface enriched with cathode active material comprising the following steps:

• a) preparing a precursor solution by dissolving at least two metal salts and one or more organic acids in a first solvent, said metal salts comprising lithium, and one or more selected from the group consisting of aluminium, cobalt, manganese and nickel;
• b) adding one or more basic compounds and one or more non-metallic salts to the precursor solution;
• c) diluting the precursor solution obtained in step b) by adding a second solvent;
• d) preparing a surface-treated current collector by disposing at least part of the diluted precursor solution on a current collector surface material;
• e) heating the surface-treated current collector at a temperature of 500° C. or less under an oxidative or inert atmosphere, thereby decomposing the diluted precursor solution.