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Title:
SEPARATION METHOD FOR SEPARATING CONSTITUENT MATERIAL FROM MEMBER AND METHOD FOR PROCESSING MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/210674
Kind Code:
A1
Abstract:
A separation method according to the present invention comprises: a step for obtaining a mixture by mixing a solvent with a member that comprises an active material and a solid electrolyte; and a step for obtaining a solid component and a separated liquid by subjecting the mixture to solid-liquid separation. The solid electrolyte contains lithium (Li) element, sulfur (S) element and phosphorus (P) element. The solid electrolyte is dissolved in the solvent. It is preferable that this separation method additionally comprises a step for recovering a compound, which contains at least one of the Li element, S element and P element, from the separated liquid. It is also preferable that this separation method additionally comprises a step for recovering a carbon component by subjecting the solid component to acid dissolution.

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Inventors:
TAKAHASHI TSUKASA (JP)
Application Number:
PCT/JP2022/015345
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
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Assignee:
MITSUI MINING & SMELTING CO LTD (JP)
International Classes:
C22B7/00; C22B3/06; C22B3/16; H01M10/54
Foreign References:
JP2010040458A2010-02-18
JP2019081953A2019-05-30
JP2006004884A2006-01-05
JP2016035809A2016-03-17
JP2016058280A2016-04-21
JP2019099901A2019-06-24
JP2019160429A2019-09-19
JP2013139632A2013-07-18
Other References:
TERAGAWA, SHINGO; ASO, KEIGO; TADANAGA, KOYOHARU; HAYASHI, AKITOSHI; TATSUMISAGO, MASAHIRO: "3E17 Preparation of Li2S-P2S5 solid electrolyte via its solution and application for all-solid state batteries", 54TH BATTERY SYMPOSIUM IN JAPAN; OSAKA, JAPAN; OCTOBER 7 - 9, 2013, vol. 54, 6 October 2013 (2013-10-06) - 9 October 2013 (2013-10-09), pages 350, XP009540115
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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