ANODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, ANODE AND BATTERY USING IT

摘要

PROBLEM TO BE SOLVED: To provide an anode-activating material which contains lithium and manganese compound oxide and is used for a lithium ion secondary battery with a superior recycle characteristic. SOLUTION: The anode material for a lithium ion secondary battery has a character that the material contains (a) lithium and manganese compound oxide that has a spinel structure of lithium manganese oxide in which one part of manganese site is substituted by other elements and the substituted element are distributed so that the standard deviation σ against the average of the substituted elements included in each primary crystal lattice is under 50% and (b) the compound oxide with lithium and at least a transition metal other than (a).