| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium titanate particle powder which shows the excellent initial discharge capacity as an active material for a nonaqueous electrolyte secondary battery and has high maintenance coefficient of the high-rate discharge capacity.SOLUTION: The lithium titanate particle power can be obtained from a step in which a water-soluble lithium solution is added to and mixed with an aqueous suspension of a titanium oxide of which BET specific surface area is 40 to 400 m/g, and the primary particle size is 5 to 50 nm, and the mixed suspension is aged and reacted at 50 to 100°C; a step in which the obtained reaction product is filtered, dried and pulverized; and a step in which the obtained dried powder is heated, calcined and processed at 550 to 800°C. |
