Resource recycling method for waste cathode material containing nickel, cobalt, manganese and lithium

The invention provides a resource recycling method for a waste cathode material containing nickel, cobalt, manganese and lithium. The method includes the following steps that (1) the waste cathode material containing nickel, cobalt, manganese and lithium is subjected to reducing and acid immersion with sulfuric acid and hydrogen peroxide to obtain first solution after pressure filtration; (2) thepH value of the first solution is adjusted to obtain second solution after pressure filtration; (3) the second solution is divided into second solution I and second solution II; (4) the second solution I is evaporated and concentrated through MVR to obtain a lithium sulfate crystal and first centrifugal mother liquor water through centrifugation; and (5) cooling crystallization is conducted, the first centrifugal mother liquor water is added to the second solution II for attenuation, cooling crystallization is conducted, and a nickel cobalt manganese sulfate eutectic and second centrifugal mother liquor water through