The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Sep. 30, 2011
Chong Ho Sonu, Seongnam-si, KR;
Min Jae Lee, Ulsan, KR;
Sung Chen Ahan, Yongin-si, KR;
Byoung Kook Jeon, Cheonan-si, KR;
BO Eun Kim, Seoul, KR;
Chong Ho Sonu, Seongnam-si, KR;
Min Jae Lee, Ulsan, KR;
Sung Chen Ahan, Yongin-si, KR;
Byoung Kook Jeon, Cheonan-si, KR;
Bo Eun Kim, Seoul, KR;
LS-Nikko Copper Inc., Ulsan, KR;
Abstract
Valuable metals such as cobalt, nickel, manganese, and lithium can be economically recovered from various lithium secondary battery-related wastes by the inventive method which comprises liquid-phase leaching a scrap powder containing Co, Ni, Mn, and Li, and purifying and solvent-extracting the resulting leaching solution to recover each of said Co, Ni, Mn, and Li, wherein the liquid-phase leaching is performed by a two-step counter-current leaching using an inorganic acid solution or a mixed solution of an inorganic acid and hydrogen peroxide.