Patent ID: 9570746
Date: 2017-02-14
CPC Classifications: C01B,C01P,H01M,Y02E

Claim:
1. An olivine-type positive active material for a lithium battery comprising a plurality of particles represented by formula 1: (wherein, M and M′ are independently Fe, Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, Mg, B, and the combination thereof, X is one element selected from the group consisting of P, As, Bi, Sb, and the combination thereof, B is one element selected from the group consisting of F, S, and the combination thereof, 0<x≦1, 0<y≦1, 0<z≦1, 0<x+y+z≦2, and 0≦w≦0.5) wherein the particles have a diameter of 5 to 15 μm and a tap density of about 0.8 to about 2.1 g/cm