RECOVERY METHOD FOR LITHIUM PRECURSOR

Title:

RECOVERY METHOD FOR LITHIUM PRECURSOR

Document Type and Number:

WIPO Patent Application WO/2021/066362

Kind Code:

A1

Abstract:

A method for recovering a lithium precursor according to embodiments of the present invention comprises preparing a cathode active material mixture including a lithium composite oxide. The cathode active material mixture is reacted with a carbonaceous solid material in an inert gas atmosphere to form a preliminary precursor mixture including lithium oxide. The preliminary precursor mixture is subjected to water washing treatment to separate a lithium precursor. The lithium precursor can be recovered in high yield and high efficiency.

Inventors:

HONG SUK JOON (KR)
KIM JI MIN (KR)
SON SUNG REAL (KR)
HA DONG WOOK (KR)

Application Number:

PCT/KR2020/012632

Publication Date:

April 08, 2021

Filing Date:

September 18, 2020

Export Citation:

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Assignee:

SK INNOVATION CO LTD (KR)

International Classes:

C01D15/02; C01D15/08; H01M8/008

Foreign References:

KR101897134B1	2018-09-10
JP2011094227A	2011-05-12
KR102020238B1	2019-09-10
KR20140126943A	2014-11-03
KR101800842B1	2017-11-23
KR20150002963A	2015-01-08

Attorney, Agent or Firm:

LEECHAE INTELLECTUAL PROPERTY (KR)

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