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Title:
廃正極材から遷移金属を分離する方法
Document Type and Number:
Japanese Patent JP7317430
Kind Code:
B2
Abstract:
The present invention relates to a method for separating a transition metal from a waste positive electrode material, wherein the method includes Step 1 of preparing a waste positive electrode material represented by Formula 1, Step 2 of heat treating the waste positive electrode material in an inert gas atmosphere or an oxygen atmosphere to phase separate the waste positive electrode material into a lithium oxide and a metal oxide, Step 3 of cooling an obtained product of Step 2 to room temperature in an inert atmosphere, and Step 4 of mixing a cooled product cooled to room temperature in Step 3 with distilled water, and then filtering the mixture to leach a transition metal.

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Inventors:
Won Sig Jun
Tae Young Li
Hwang Young Choi
Application Number:
JP2021566535A
Publication Date:
July 31, 2023
Filing Date:
December 15, 2020
Export Citation:
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Assignee:
LG HAUSYS,LTD.
International Classes:
H01M10/54; C22B1/02; C22B3/04; C22B7/00; C22B21/00; C22B23/00; C22B23/02; C22B47/00; H01M4/505; H01M4/525
Domestic Patent References:
JP2012229481A
JP2011094227A
JP2010034021A
Foreign References:
WO2019197192A1
Attorney, Agent or Firm:
Shinya Mihiro
Watanabe Takashi



 
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