| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium secondary battery that imparts superior high-temperature storage characteristics and quick charging/discharging characteristics to the lithium secondary battery. <P>SOLUTION: The negative electrode active material for the lithium secondary battery comprises lithium titanate represented by general formula (1) of Li<SB POS="POST">x</SB>Ti<SB POS="POST">y</SB>O<SB POS="POST">12</SB>(where x and y satisfy 3.0≤x≤5.0, 4.0≤y≤6.0 and 0.70≤x/y≤0.90), and a magnesium compound. In the negative electrode active material, primary particles of lithium titanate represented by the general formula (1) and the magnesium compound cohere to form aggregates (secondary particles). <P>COPYRIGHT: (C)2012,JPO&INPIT |
