Abstract: The present invention relates to a method for a surface treatment of a layered structure oxide for a positive electrode in a lithium secondary battery. The method includes coating the surface of the layered structure oxide with a lithium transition metal oxide. The lithium secondary battery where the layered structure oxide is used as an active material of the positive electrode solves the problem of the thermal stability suffered conventionally.

Abstract: A method for crystallizing a lithium transition metal oxide thin film for an electrode of a thin film-type lithium secondary battery is provided, in which the lithium transition metal oxide thin film is reacted with oxygen or argon plasma induced by a microwave or a radio frequency wave, thereby obtaining an excellent lithium transition metal oxide thin film in a degree of crystallization and electrochemical characteristics.

Abstract: Disclosed is a method for surface treatment of lithium manganese oxide for positive electrodes in lithium secondary batteries and, more particularly, a method for surface treatment of lithium manganese oxide in which the surface of the lithium manganese oxide is coated with lithium transition metal oxides. The lithium secondary batteries using the coated lithium manganese oxide as an anode material not only solves the problems with the conventional lithium secondary batteries in regard to the lifetime of the electrodes at high temperature and the fat discharge efficiency but also replace the conventional expensive lithium cobalt oxide to reduce the production cost.