Patent ID: 9478993
Filing Date: 2016-10-25
CPC Classification: C01D,H01M,H02J,Y02E,Y02P,Y02T

Claim Text:
1. A method of preparing a cathode material for a lithium secondary battery using a Li 2 MnO 3 -based composite material Li(Li x Ni y Co z Mn w O 2 ) obtained by reacting a starting material mixture of a nickel nitrate solution, a manganese nitrate solution, and a cobalt nitrate solution with a complex agent by co-precipitation, wherein the Li 2 MnO 3 -based composite material comprises LiMn 1/3 C 1/3 Ni 1/3 O 2 (NMC), and mixing the NMC with Li 2 MnO 3 .