| 摘要 |
PROBLEM TO BE SOLVED: To provide lithium titanate having a specific mean grain diameter, a maximum grain diameter and an SD value, and a lithium secondary battery using the lithium titanate. SOLUTION: The lithium titanate is characterized in that it is composed of Li4 Ti5 O12 as a main ingredient, having the mean grain diameter of 0.5-1.5 μm, its max. grain diameter of <=25 μm, the SD value expressed equation: SD=(d84%-d16%)/2 is <=0.5 μm. The lithium secondary battery is manufactured by using the lithium titanate. |
