PROCESS FOR RECOVERING LITHIUM AND TRANSITION METALS FROM WASTE CATHODE OF SPENT LITHIUM ION BATTERY

摘要

A process is disclosed which is used for directly recovering lithium and valuable transition metals such as cobalt, nickel and manganese from waste cathode and anode powder of spent lithium ion batteries into high grade products through a cascade reduction reaction scheme, followed by digestion and precipitation circuit using CO2 as media, and a series of physical separation procedures.