METHOD FOR RECOVERY OF VALUABLE METALS FROM SPENT SECONDARY BATTERIES

Title:

METHOD FOR RECOVERY OF VALUABLE METALS FROM SPENT SECONDARY BATTERIES

Document Type and Number:

WIPO Patent Application WO/2023/244094

Kind Code:

A1

Abstract:

A method for recovery of valuable metals from spent secondary batteries, according to one embodiment of the present invention, comprises: a pretreatment step of pretreating the spent secondary batteries; a melting step of generating melt by heating the pretreated spent secondary batteries; and a recovery step of recovering valuable metals from the melt. A chlorinating agent is added in the melting step, and lithium is recovered in the form of lithium dust in the recovery step.

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Inventors:

CHOI HEON SIK (KR)
YOON TAE HOON (KR)

Application Number:

PCT/KR2023/009404

Publication Date:

December 21, 2023

Filing Date:

July 04, 2023

Export Citation:

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Assignee:

KOREA ZINC CO LTD (KR)

International Classes:

H01M10/54; B09B3/35; C22B9/10; C22B9/16; C22B15/00; C22B23/02; C22B26/12; B09B101/16

Foreign References:

KR20210131258A	2021-11-02
KR20120094619A	2012-08-27
JP2022507413A	2022-01-18
JP2014122369A	2014-07-03
KR102546258B1	2023-06-23

Attorney, Agent or Firm:

CHANG, Duck Soon et al. (KR)

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