Patent ID: 6962666
Filing Date: 2005-11-08
Classification: H01B,H01G,H01M,Y02E

Abstract:
1. An electrode material that is reversible to alkaline ions comprising complex oxide corresponding to the general formula A a M m Z z O o N n F i wherein: A comprises an alkaline metal; M comprises at least one transition metal1 and optionally at least one a non-transition metal, or mixtures thereof; Z comprises at least one non-metal; O is a oxygen; N nitrogen; and F is fluorine; and the coefficients a, m, o, n, f≧0 and z≧0 and are selected to ensure electroneutrality, wherein said complex oxide comprises a non powdery coating of a conductive carbonaceous material on a surface thereof, said coating being effective to obtain a regular electric field distribution on the surface of particles of said complex oxide and wherein said coefficients are selected to avoid oxidation of the conductive carbonaceous a material during deposition thereof on said surface.