Title:
リチウムイオン二次電池からのマンガンの浸出方法および金属回収方法
Document Type and Number:
Japanese Patent JP7341830
Kind Code:
B2
Abstract:
To efficiently separate and recover metal from a calcined LIB (lithium ion secondary battery).SOLUTION: The present invention relates to a method for leaching out manganese from a lithium ion secondary battery and a technique relating thereto. When manganese is leached out into a solution from a lithium ion secondary battery in which a positive electrode collector and a negative electrode collector are calcined in an atmosphere with an oxygen concentration of 11 vol% or less, the pH of the solution is 4.00 or less and the ORP (3.3M KCl-Ag/AgCl) is -350 mV or less.SELECTED DRAWING: Figure 1
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Inventors:
Kazuya Arakawa
Shingo Kato
Satoshi Nakagawara
Chihiro Nishikawa
Yoshihiro Homma
Ryo Watanabe
Shingo Kato
Satoshi Nakagawara
Chihiro Nishikawa
Yoshihiro Homma
Ryo Watanabe
Application Number:
JP2019180560A
Publication Date:
September 11, 2023
Filing Date:
September 30, 2019
Export Citation:
Assignee:
DOWA Metal & Mining Co., Ltd.
International Classes:
B09B5/00; C22B23/00; C22B1/02; C22B3/06; C22B7/00; C22B26/12; H01M10/54
Domestic Patent References:
| JP2018145449A | ||||
| JP2018040035A | ||||
| JP2018078024A | ||||
| JP2016219402A |
Foreign References:
| WO2018181816A1 |
Attorney, Agent or Firm:
Setsuo Aniya
Tomohiro Okuyama
Tomohiro Okuyama