| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode active material capable of suppressing an increase of an irreversible capacity accompanying charging/discharging and a deterioration of an electric capacity accompanying charging/discharging and suppressing generation of hydrogen gas upon charging, and to provide a manufacturing method thereof, and to provide a nonaqueous electrolyte secondary battery with a high capacity and excellent cycle characteristics. <P>SOLUTION: A material compound containing an element M capable of forming an intermetallic compound with lithium is heated under an existence of lithium nitrate. Thus, the negative electrode active material for a nonaqueous electrolyte secondary battery which contains the element M capable of forming the intermetallic compound with lithium and has a moisture amount of 0.04 molecule or less per one atom of the above element M. This negative electrode active material is used for the negative electrode 12 of the nonaqueous electrolyte secondary battery. <P>COPYRIGHT: (C)2011,JPO&INPIT |
