发明公开
EP2924770A1 NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME 有权
用于电气设备的阴极和与之相配的电气设备

NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME
摘要:
[TECHNICAL PROBLEM] To provide a negative electrode for an electric device such as a Li ion secondary battery which exhibits balanced characteristics of providing high initial capacity and maintaining high cycle characteristics.
[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 expressed by formula (1): Si x Ti y M z A a ...(1) (in formula (1), M is at least one metal selected from the group consisting of Ge, Sn, Zn, and combinations thereof, A is inevitable impurity, and x, y, z, and a represent mass percent values and satisfy 0
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