POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR USE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

This non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a lithium transition metal composite oxide which has an α-NaFeO₂-type crystal structure and is represented by general formula, Li_1+αMe_1-αO₂ (0α, Me is a transition metal element containing Ni and Mn, or containing Ni, Mn, and Co), and in an X-ray diffraction diagram measured using a CuKα ray, a diffraction peak is observed in the range of 20-22°.