NONAQUEOUS ELECTROLYTIC SECONDARY BATTERY

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PROBLEM TO BE SOLVED : To provide a high-capacity nonaqueous electrolytic secondary battery having good continuous charge storage characteristics and cycle characteristics, in which microparticles made of rare earth element compound adhere to the surface of an anode active material. SOLUTION : The nonaqueous electrolytic secondary battery includes : an anode having an anode active material; a cathode having a cathode active material; a separator; and a nonaqueous electrolyte. The anode includes, as the anode active material : an anode active material A of a layer structure, consisting of a lithium transition meal complex oxide containing lithium and cobalt, and having microparticles adhering to the surface thereof, in which the microparticles are made of at least one species of rare earth element hydroxide and oxyhydroxide; an anode active material B of a layer structure, consisting of a lithium transition meal complex oxide containing lithium and cobalt, and having no rare earth element compound microparticles adhering to the surface thereof; and a phosphoric acid lithium. COPYRIGHT : (C)2012, JPO&INPIT