Patent ID: 8568611

Claim:
An article, comprising: a coated particle having a core and a coating surrounding at least a portion of the core, the coating having a composition: Li x M y P z N w O m , wherein x, y, z, w, and m are each independently greater than 0, and M comprises one or more transition metals, and wherein: (y/x) is a number less than or equal to about 0.3, (x/z) is a number between, inclusively, about 1.25 and about 3, m is greater than or equal to the quantity (x+2y+5z)/2 and less than or equal to the quantity (x+3y+5z)/2, m is between, inclusively, about 1.6 and about 5.4, and w is less than or equal to about 0.1.