| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a positive electrode thin film material that is low in cost, high in performance and high in capacity.SOLUTION: In a method for producing a positive electrode material for a secondary battery comprising lithium and a substrate including an oxide film mainly containing at least one of manganese and cobalt, an oxide film mainly containing manganese is formed, as a precursor, on a substrate by an electrolytic method, and then an aqueous solution containing lithium ions are dropped on a surface of the substrate on which the precursor has been formed, and the substrate is heated at 600-1,000°C, or the precursor on the substrate is subjected to a hydrothermal reaction in an aqueous solution containing lithium ions. |
