Patent ID: 9440861
Filing Date: 2016-09-13
CPC Classification: C01G,C01P,H01M,Y02E

Claim Text:
1. A method for modification lithium ion battery positive electrode material, comprising the following steps: (1) mixing organic acid with alcohol to obtain an organic solution; (2) adding the lithium ion battery positive electrode material into the organic solution to obtain a suspension by mixing; (3) washing the material with alcohol solvent after centrifugal separation of the suspension; (4) drying the washed lithium ion battery positive electrode material to obtain the modified lithium ion battery positive electrode material; the lithium ion battery positive electrode material is nickel-based metal oxide positive electrode materials LiNi x M 1-x O 2 , wherein 0.5≦x<1 and M is one or two selected from the group consisting of Co, Mn, Al, Cr, Mg, Cu, Ti, Zn, Zr and V.