Patent ID: 7682746

Claim:
A negative electrode for a non-aqueous secondary battery, the negative electrode comprising: a current collector; and a mixture on the current collector, the mixture comprising a negative electrode active material, a conductive material, and a binder; in which: the negative electrode active material has the overall composition: AM 1 q M 2 1-q O y ; A is Li X or Li X-r G r , in which G is selected from the group consisting of Na, K, Cs, Be, Mg, Ca, Sr, Ba, and mixtures thereof, in which G and M 1 are different; 0<x≦3; y is 3 or 4; 0<q<1; and 0≦r≦3; and either M 1 is selected from the group consisting of Sn, Mg, and mixtures thereof, and M 2 is selected from the group consisting of V, Ti, Nb, Mn, Cr, Sb, Zr, W, and mixtures thereof; or M 1 is selected from the group consisting of Y, Co, and mixtures of two or more of Y, Co, Sn, and Mg, and M 2 is selected from the group consisting of Ti, Nb, Mn, Cr, Sb, Mo, Zr, W, and mixtures thereof.