Method For Regenerating Cathode Active Material, And Regenerated Cathode Active Material Prepared Thereby

Abstract: The present invention relates to a method for regenerating a cathode active material, and a regenerated cathode active material prepared thereby. The method comprises the steps of: a) heat-treating, at 300-650 °C, a waste cathode, which has a cathode active material layer formed on a current collector, so as to thermally decompose a binder and a conductive material in the cathode active material layer, thereby separating the current collector from the cathode active material layer and recovering a cathode active material in the cathode active material layer; b) heat-treating the recovered cathode active material again at 350-700 °C for 1-10 hours; c) adding a lithium precursor to the reheated cathode active material and annealing same at 500-1,000 °C; d) washing the annealed cathode active material with a washing solution; and e) surface-coating the washed cathode active material with a coating agent.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents