Title:
ELECTRODE MATERIAL LEACHING METHOD AND METHOD FOR SEPARATING COBALT AND NICKEL
Document Type and Number:
WIPO Patent Application WO/2023/191030
Kind Code:
A1
Abstract:
Provided is an electrode material leaching method for performing acid leaching on an electrode material of a lithium-ion secondary battery, the electrode material leaching method being characterized in that: the electrode material leaching method comprises a leaching step for causing the electrode material of the lithium-ion secondary battery to react with sulfuric acid to obtain a leachate in which metal contained in the electrode material is leached; and the leaching step includes a sulfuric acid adding process for adding sulfuric acid to the electrode material to obtain a sulfuric-acid-added electrode material, a kneading process for kneading the sulfuric-acid-added electrode material to form a leaching paste, and a diluting process for diluting the leaching paste with water.
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Inventors:
MIYAZAKI ATSUSHI (JP)
MURAOKA HIROKI (JP)
MURAOKA HIROKI (JP)
Application Number:
PCT/JP2023/013470
Publication Date:
October 05, 2023
Filing Date:
March 31, 2023
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B09B5/00; B09B3/70; C22B1/02; C22B3/08; C22B3/22; C22B3/44; C22B7/00; C22B23/00; H01M10/54
Domestic Patent References:
| WO2022050248A1 | 2022-03-10 | |||
| WO2013114621A1 | 2013-08-08 |
Foreign References:
| JP2021512215A | 2021-05-13 | |||
| JP2016113672A | 2016-06-23 | |||
| JP2016003382A | 2016-01-12 | |||
| JPS61209914A | 1986-09-18 | |||
| JP2019024421A | 2019-02-21 | |||
| JP2012001750A | 2012-01-05 | |||
| JP2014019909A | 2014-02-03 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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