Patent ID: 8475959
Filing Date: 2013-07-02
Classification: C01D,C01G,C01P,H01M,Y02E,Y02P

Abstract:
1. A positive electrode active material for a lithium ion battery comprising a layered lithium doped lithium metal oxide composition approximately represented by a formula xLi 2 MnO 3 .(1-x)LiNi u+Δ Mn u−Δ−d Li d Co w A y O 2 , x ranges from about 0.03 to about 0.55, d ranges from about 0.004 to about 0.05, 2u+w+y is approximately equal to 1, Δ ranges from about −0.0019 to about 0.0019, w ranges from about 0.2 to about 0.475, u ranges from about 0.2 to about 0.4, y ranges from 0 to about 0.1 with the proviso that both (u+Δ) and w are not both 0 and A is Mg, Sr, Ba, Cd, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb, Cr, Fe, V, or combinations thereof.