| abstract |
[TECHNICAL PROBLEM] To provide a negative electrode for an electric device such as a Li ion secondary battery, which shows good balanced characteristics where Initial capacity is high while maintaining high cycle characteristics. n [SOLUTION TO PROBLEM] The negative electrode for an electric device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector. The negative electrode active material is a mixture of a carbon material and an alloy represented by the following formula ( 1 ): n Si x Zn y M z A a (1)n n (in formula ( 1 ), M is at least one of metal selected from the group consisting of V, Sn, Al, C, and combinations thereof, A is inevitable impurity, and x, y, z and a represent mass percent values and satisfy 0 <x<100, 0 <y<100, 0 <z<100, and 0 <a<0.5, and x+y+z+a=100). |