Patent ID: 6811925
Filing Date: 2004-11-02
Classification: C01G,C01P,H01M,Y02E

Abstract:
A positive active material for nonaqueous electrolyte secondary batteries, characterized in that it is comprised of a lithium compound oxide of the formula:LiaNibCocMndMeO2â€ƒâ€ƒ(1) where M stands for one or two of W and Mo,0.90&lE;a&lE;1.15, 0<0.99, 0&lE;0.5, 0&lE;0.5, 0&lE;0.9, 0.01&lE;e&lE;0.1, and b+c+d+e=1, and in that the lithium compound oxide gives an X-ray diffraction pattern including a diffraction peak or peaks assigned to a compound oxide of Li and W and/or a compound oxide of Li and Mo, in addition to main diffraction peaks assigned to a hexagonal crystal structure.