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Title:
METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/139310
Kind Code:
A1
Abstract:
In a method for recovering an active metal of a lithium secondary battery, positive electrode active material particles including a lithium-transition metal oxide is prepared. The positive active material particles are treated by reduction. The reduction-treated positive active particles are subjected to ultrasonic dispersion and hydration. The hydrated transition metal slurry is recovered. The recovery rate of lithium and transition metal can be increased by disaggregation through ultrasonic dispersion.

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Inventors:
HA HYEON BAE (KR)
KIM HYEON JUNG (KR)
KIM SANG KI (KR)
KIM WAN GI (KR)
Application Number:
PCT/KR2021/019105
Publication Date:
June 30, 2022
Filing Date:
December 15, 2021
Export Citation:
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Assignee:
SK INNOVATION CO LTD (KR)
International Classes:
H01M10/54; C22B3/00; C22B7/00; C22B26/12; H01M4/505; H01M4/525; H01M10/052
Foreign References:
JP2012229481A2012-11-22
JP2017084681A2017-05-18
JP2014203567A2014-10-27
KR20090030152A2009-03-24
KR102020238B12019-09-10
KR100709268B12007-04-19
Attorney, Agent or Firm:
LEECHAE INTELLECTUAL PROPERTY (KR)
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