NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME

There is provided a negative electrode for an electric device such as a Li ion secondary battery capable of exhibiting well-balanced characteristics of a high cycle property and a high initial capacity. 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, wherein the negative electrode active material contains an alloy represented by the following formula (1): SiZnMA(in the formula (1), M is at least one metal selected from the group consisting of V, Sn, Al, C and a combination thereof, A is inevitable impurities, and x, y, z and a represent mass percent values and satisfy the conditions of 0