Patent ID: 8535832
Filing Date: 2013-09-17
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. A lithium ion battery positive electrode material comprising a lithium metal oxide coated with a metal/metalloid oxide coating composition, wherein the lithium metal oxide can be approximately represented by a formula Li wherein the coating composition comprises less than 2 weight percent of the positive electrode material, and wherein after the material is activated in the first cycle to a charge of 4.6V at a rate of C/10, the positive electrode material has a specific discharge capacity of at least about 260 mAh/g with a discharge rate of C/3 when discharged from 4.6V to 2.0 V at room temperature and a specific discharge capacity of at least about 230 mAh/g with a discharge rate of C/3 at the 50th charge/discharge cycle when discharged from 4.6V to 2.0 V at room temperature.