ANODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, MANUFACTURING METHOD OF ANODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND BATTERY PACK

摘要

PROBLEM TO BE SOLVED: To provide an anode active material for a nonaqueous electrolyte battery showing an electrode potential of around 1.5 V equivalent to a conventional titanic acid-based material in lithium reference and having a higher energy density.

SOLUTION: The anode active material for a nonaqueous electrolyte secondary battery consists of lithium titanium complex oxide expressed in a general formula: Li2+xTi4O9(provided, x in the formula satisfies: 0≤x≤4), with a maximum intensity peak of a (002) face at 2θ=10°±2° by a powder X-ray diffraction method with Cu-Kα beam sources, further, a peak of a (402) face at 2θ=30°±2° and a peak of a (020) face at 2θ=48°±2°, and with a half-value width of the maximum intensity at 0.5° to 3.0°/2θ.

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