Title:
RECOVERY METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL OF SULFIDE SOLID BATTERY
Document Type and Number:
Japanese Patent JP2016035809
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a recovery method of a positive electrode active material of a sulfide solid battery, which makes it possible to recover a positive electrode active material and a raw material of a sulfide solid electrolyte while suppressing or preventing the release of hydrogen sulfide to the outside of a process liquid.SOLUTION: A method for recovering a positive electrode active material of a sulfide solid battery, comprises: a first dissolution step in which, when recovering the positive electrode active material from a positive electrode including at least a sulfide solid electrolyte and the positive electrode active material, the positive electrode is immersed in a Li based alkali aqueous solution, thereby dissolving the sulfide solid electrolyte; a separation step in which a liquid solution obtained by the first dissolution step and an insoluble component are separated from each other; a condensation step in which the liquid solution separated by the separation step is condensed; and a burning step in which the insoluble component separated by the separation step is burned.SELECTED DRAWING: Figure 1
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Inventors:
KOSAKA DAICHI
SASAOKA TOMOAKI
KATO KAZUHITO
HASEGAWA HAJIME
OSE TOKUHIRO
HAGA KENGO
NISHIMURA HIDEAKI
OKUHATA YUSUKE
OTAKI MITSUTOSHI
HOZUMI MASATO
SASAOKA TOMOAKI
KATO KAZUHITO
HASEGAWA HAJIME
OSE TOKUHIRO
HAGA KENGO
NISHIMURA HIDEAKI
OKUHATA YUSUKE
OTAKI MITSUTOSHI
HOZUMI MASATO
Application Number:
JP2014157510A
Publication Date:
March 17, 2016
Filing Date:
August 01, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/54; C22B3/04; C22B7/00; C22B26/12; H01B1/10; H01M4/13; H01M4/66; H01M10/0562
Domestic Patent References:
| JP2010040458A | 2010-02-18 | |||
| JPH0822846A | 1996-01-23 | |||
| JPH07330312A | 1995-12-19 | |||
| JP2010062105A | 2010-03-18 |
Foreign References:
| WO2010106618A1 | 2010-09-23 |
Attorney, Agent or Firm:
Noriyuki Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto
Akihiko Yamashita
Kishimoto Tatsuto