Title:
METHOD FOR PRODUCING NICKEL POWDER
Document Type and Number:
WIPO Patent Application WO/2017/155198
Kind Code:
A1
Abstract:
A method for producing nickel powder is disclosed. According to an embodiment of the present invention, provided is a method for producing nickel powder from a positive electrode active material of a waste lithium ion battery, the method comprising: extracting the positive electrode active material from the waste lithium ion battery; pyrolyzing the positive electrode active material under a reducing gas atmosphere to separate the same into a nickel oxide and an alkali metal carbonate; washing the nickel oxide and the alkali metal carbonate with water to remove the alkali metal carbonate; and reducing the nickel oxide to form nickel powder.
Inventors:
WANG JEI-PIL (KR)
Application Number:
PCT/KR2017/000061
Publication Date:
September 14, 2017
Filing Date:
January 03, 2017
Export Citation:
Assignee:
PUKYONG NAT UNIV INDUSTRY-UNIV (KR)
International Classes:
B22F9/22; B22F9/30
Foreign References:
| KR20000055084A | 2000-09-05 | |||
| KR100709082B1 | 2007-04-19 | |||
| JP2013152854A | 2013-08-08 | |||
| KR20110060040A | 2011-06-08 |
Other References:
KIM DAE WON ET AL.: "Recovery of Lithium and Leaching Behavior of NCM Powder by Carbon Reductive Treatment from Li(NCM)O2 System Secondary Battery Scraps", JOURNAL OF THE KOREAN INSTITUTE OF RESOURCES RECYCLING, vol. 22, no. 4, 2013, pages 43 - 49, XP055413943
Attorney, Agent or Firm:
DOOHO IP LAW FIRM (KR)
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