Title:
METHOD FOR TREATING LITHIUM ION BATTERY WASTE
Document Type and Number:
WIPO Patent Application WO/2019/102765
Kind Code:
A1
Abstract:
Provided is a treatment method whereby it becomes possible to recovery copper, nickel and cobalt, which are valuable metals, contained in a lithium ion battery waste and to separate copper, nickel and cobalt from one another effectively. A method for treating a lithium ion battery waste according to the present invention includes: an alloy production step S1 of introducing the lithium ion battery waste into a furnace and then melting the lithium ion battery waste by heating, thereby producing an alloy containing copper, nickel and cobalt; and an electrolytic purification step S2 of subjecting the alloy to such an electrolytic treatment that the alloy is charged as an anode into a sulfuric acid solution and then electricity is conducted between the anode and a cathode to electrodeposit copper contained in the alloy onto the cathode, thereby separating nickel and cobalt from each other.
Inventors:
TAKENOUCHI HIROSHI (JP)
ASANO SATOSHI (JP)
TAN TOSHIROU (JP)
KOBAYASHI HIROSHI (JP)
TAKEDA KENJI (JP)
ASANO SATOSHI (JP)
TAN TOSHIROU (JP)
KOBAYASHI HIROSHI (JP)
TAKEDA KENJI (JP)
Application Number:
PCT/JP2018/039199
Publication Date:
May 31, 2019
Filing Date:
October 22, 2018
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B7/00; C22B15/00; C22B23/00; C25C1/12
Foreign References:
| US7169206B2 | 2007-01-30 | |||
| JP2013091826A | 2013-05-16 | |||
| JP2003157913A | 2003-05-30 | |||
| JP2017036489A | 2017-02-16 |
Other References:
See also references of EP 3715484A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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