Patent ID: 9466836
Filing Date: 2016-10-11
CPC Classification: C01B,C01P,H01M,Y02E

Claim Text:
1. A positive active material for a rechargeable lithium battery, comprising: a core comprising a compound capable of intercalating and deintercalating lithium; and a lithium metal phosphate on the surface of the core, wherein the lithium metal phosphate is different from the compound capable of intercalating and deintercalating lithium and is represented by Chemical Formula 1: wherein in Chemical Formula 1, A is a tetravalent element selected from the group consisting of Zr, Nb, Mo, Ce, Cr, Ge, Ru, Se, Sn, Ta, Tb, W, and a combination thereof, B is a divalent element, 0<x≦1, 0<y≦1, and 2−(x+y) is not 0.