A BATTERY CATHODE, A LITHIUM ION BATTERY USING THE SAME AND PROCESSES FOR PREPARATION THEREOF

摘要

A battery cathode comprising a current collector and a cathode material coated on and/or filled in the current collector, said cathode material comprising a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof, and the content of lithium cobaltate is 0.1-15wt%(weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.