Title:
METHOD FOR RECOVERING ACTIVE METALS FROM LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/199014
Kind Code:
A1
Abstract:
A cathode active material mixture obtained from a waste cathode of a lithium secondary battery is prepared in a method for recovering active metals from a lithium secondary battery. A preliminary precursor mixture is formed by reacting the cathode active material mixture in a fluidized bed reactor. A lithium precursor is selectively recovered from the preliminary precursor mixture. The recovery and the selectivity of the lithium precursor can be improved by using the fluidized bed reactor.
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Inventors:
LA YEON HWA (KR)
CHO KWANG KUK (KR)
KOO MIN SU (KR)
RYU JA YOUNG (KR)
SON SUNG REAL (KR)
CHO KWANG KUK (KR)
KOO MIN SU (KR)
RYU JA YOUNG (KR)
SON SUNG REAL (KR)
Application Number:
PCT/KR2019/004189
Publication Date:
October 17, 2019
Filing Date:
April 09, 2019
Export Citation:
Assignee:
SK INNOVATION CO LTD (KR)
International Classes:
C01D7/07; C01G45/10; C01G51/10; C01G53/10; H01M10/052; H01M10/54
Foreign References:
| KR20150094412A | 2015-08-19 | |||
| KR101682217B1 | 2016-12-05 | |||
| JP2012229481A | 2012-11-22 | |||
| JP2004011010A | 2004-01-15 | |||
| KR100709268B1 | 2007-04-19 |
Other References:
KIM, DAE WEON ET AL.: "Recovery of Lithium and Leaching Behavior of NCM Powder by Hydrogen Reductive Treatment from NCM System Li-ion Battery Scraps", J. OF KOREAN INST , OF RESOURCES RECYCLING, vol. 22, no. 3, 2013, pages 43 - 49, XP055413943, DOI: 10.7844/kirr.2013.22.3.43
KIM, DAE WEON ET AL.: "Recovery of Lithium and Leaching Behavior of NCM Powder by Carbon Reductive Treatment from Li(NCM)O2 System Secondary Battery Scraps", J. OF KOREAN INST. OF RESOURCES RECYCLING, vol. 22, no. 4, 2013, pages 62 - 69, XP055643776, DOI: 10.7844/kirr.2013.22.4.62
See also references of EP 3770116A4
KIM, DAE WEON ET AL.: "Recovery of Lithium and Leaching Behavior of NCM Powder by Carbon Reductive Treatment from Li(NCM)O2 System Secondary Battery Scraps", J. OF KOREAN INST. OF RESOURCES RECYCLING, vol. 22, no. 4, 2013, pages 62 - 69, XP055643776, DOI: 10.7844/kirr.2013.22.4.62
See also references of EP 3770116A4
Attorney, Agent or Firm:
LEECHAE INTELLECTUAL PROPERTY (KR)
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