FLUIDIZED BED REACTOR AND METHOD FOR RECOVERING ACTIVE METAL FROM LITHIUM SECONDARY BATTERY THEREBY

    公开(公告)号:US20220349022A1

    公开(公告)日:2022-11-03

    申请号:US17855444

    申请日:2022-06-30

    摘要: A method of recovering an active metal of a lithium secondary battery according to an embodiment of the present invention includes preparing a waste cathode active material mixture obtained from a waste cathode of a lithium secondary battery, forming a preliminary precursor mixture by reacting the waste cathode active material mixture with a reactive gas in a fluidized bed reactor, and selectively recovering a lithium precursor from the preliminary precursor mixture. The fluidized bed reactor includes a reactor body and a horizontal expansion bed, and a ratio of a diameter of the horizontal expansion bed relative to a diameter of the reactor body is 3 or more to improve a recovery efficiency of a lithium secondary battery.