The invention relates to a
nickel cobalt manganese lithium oxide material used for an
anode of a li-
ion battery and a preparation method. The invention belongs to the li-
ion battery technical field. The
nickel cobalt manganese lithium oxide material used for the
anode of the li-
ion battery is a li-rich laminated structure with the chemical component of Li1+zM1-x-yNixCoyO2; wherein, z is less than or equal to 0.2 and more than or equal to 0.05, x is less than or equal to 0.8 and more than 0.1, and y is less than or equal to 0.5 and more than 0.1. The preparation method of the invention is that dissoluble salt of the
nickel,
cobalt and
manganese is taken as the
raw material;
ammonia or
ammonium salt is taken as complexing agent;
sodium hydroxide is taken as precipitator; water-dissoluble dispersant and water-dissoluble
antioxidant or
inert gas are added for control and protection; in a cocurrent flow type the solution is added to a reaction vessel for reaction; after alkalescence disposal, aging procedure,
solid-liquid separation and washing and
drying, the nickel cobalt
manganese oxide is uniformly mixed with the
lithium raw material; the nickel cobalt manganese
lithium oxide powder is obtained by
sintering the mixed
powder which is divided into three temperature areas. The invention has the advantages of high specific capacity, good circulation performance, ideal
crystal texture, short production period, low
power loss, and being suitable for industrial production, etc.