| 摘要 |
PROBLEM TO BE SOLVED: To provide a negative electrode material for a nonaqueous electrolyte secondary battery, excellent in discharge rate characteristics by increasing conductivity, while a manufacturing process thereof is simplified, and a lithium ion secondary battery.SOLUTION: A negative electrode material for a nonaqueous electrolyte secondary battery according to the present invention incudes a complex including a silicon oxide SiOx (1≤x≤2) and a silicon nanoparticle Si, and the complex has a structure where the silicon nanoparticle is dispersed in the silicon oxide. At least one element included in group XIII elements and group XV elements in the periodic table is doped in the silicon nanoparticle, as a dopant. |
