Patent ID: 8641921
Filing Date: 2014-02-04
Classification: C01B,H01M,Y02E,Y10T

Abstract:
1. A Li insertion/extraction powdered material comprising Li x (M,M′)PO 4 as an active component, wherein 0≦x≦1, M is one or more cations selected from the group consisting of Mn, Fe, Co, Ni, and Cu, and M′ is an optional substitutional cation selected from the group consisting of Na, Mg, Ca, Ti, Zr, V, Nb, Cr, Zn, B, Al, Ga, Ge, and Sn, wherein during discharging and charging of the active component, said active component is and remains a single phase material that is thermodynamically stable at 25° C. for all values of x varying from less than 0.2 to more than 0.8.