CATHODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME, AND METHOD OF MANUFACTURINT CATHODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PPROBLEM TO BE SOLVED: To provide: a cathode active material for a nonaqueous electrolyte secondary battery with high capacity and having stable cycle characteristics even in high potential; a nonaqueous electrolyte secondary battery using the same; and a method of manufacturing the cathode active material for a nonaqueous electrolyte secondary battery. PSOLUTION: The cathode active material for a nonaqueous electrolyte secondary battery, in a lithium-containing layer-like oxide LiSBa/SBNaSBb/SBMSBc/SBoSB2/SB(0.5a1.3, 0b0.01, 0.90c1.10, 00.3, M is at least an element selected from manganese, cobalt, nickel, iron, aluminum, molybdenum, zirconium and magnesium) that belongs to a space group P6SB3/SBmc, has the mol ratio of lithium and M to be "a", "c", respectively, and the ratio of "a", when "c" is converted into 1.0, to be in a range of 0.08a0.12 in case a potential P(V) is 4.8P5.0 (vs.Li/LiSP+/SP), or to be in a range of 1.05a1.15 in case a potential P(V) is 2.0P2.5 (vs.Li/LiSP+/SP). PCOPYRIGHT: (C)2010,JPO&INPIT