METHOD FOR PRODUCING CMB CATALYST RECYCLED WITH LITHIUM ION BATTERY AND TERNARY CATHODE MATERIALS

摘要

The present invention relates to recovery of cobalt and manganese from waste battery materials, and a method for making liquid catalysts from recovered Co-Mn-Br (CMB). More specifically, lithium-ion powder and ternary cathode materials are produced by leaching scrap battery materials with sulfate reduction, and sequential application of the following three process steps: neutralization titration, solid-liquid separation and solvent extraction, leads to recovery of cobalt and manganese as a liquid extract comprised of a Co-Mn-Br catalyst. According to the present invention, a CMB liquid phase catalyst that is useful for application in various manufacturing processes is provided by recovery of cobalt and manganese from waste ternary cathode and lithium-ion battery materials, enhancing the removal of other impurities, and recovering high purity cobalt and manganese.