CATHODE RECYCLING METHOD IN NI-MH BATTERY

摘要

PURPOSE: Provided is a cathode recycling method in a Ni-MH battery which separates a cathodic plate, neutralizes, discharges and re-fuses so that it simplifies recycling process with raising recycling degree. CONSTITUTION: The cathode recycling method in the Ni-MH battery comprises the steps of: (i) separating a cathodic battery from waste batteries, grinding finely, washing in water and weak acidic solution and neutralizing in strong alkali; (ii) pressing dried cathodic activated material in a powder form at a vacuum induction furnace, charging pressed powder alloy into the vacuum induction furnace and separating dissolved slag and ingot to be discharged and cooled; and (iii) analyzing ingot through ICP or EDS analysis, adding lacking component as cathodic material and re-fusing.