Preparation method for nanosized lithium cobalt oxide cathode material and application thereof

Abstract

The invention belongs to the technical field of lithium ion battery cathode materials, and discloses a preparation method and application of nanosized lithium cobalt oxide cathode materials, comprising the following steps: mixing the carbonate solution with a dispersant, adding a cobalt salt solution to react, then aging, filtering, drying the filter residue to obtain a nano-CoCOpowder, and then calcinating it to obtain a CoOprecursor; mixing the CoOprecursor with a lithium salt, and then sintering, cooling, pulverizing and sieving to obtain the nanosized lithium cobalt oxide cathode material. The main advantages of the present invention are that the nano-CoCOsynthesis process is simple and easy to control, the process is short, no special temperature control is required, the pH value and other conditions are not required to be precisely controlled during the reaction process, and it is suitable for large-scale industrial production.