| abstract |
Provided are a negative electrode active material for an electricity storage device having good cycle characteristics and high discharge capacity, and a method for producing the same. A process of mechanically milling a raw material containing an oxide material containing SiO 2 and a non-oxide material containing M (M is at least one selected from Si, Al, Ti, Li, Mg, Zr, and Ca). It is set as the manufacturing method of the negative electrode active material for electrical storage devices characterized by including. |