화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 가을 (10/24 ~ 10/26, 대구 EXCO)
권호 24권 2호, p.1432
발표분야 분리기술(Separation Technology)
제목 Li1−xNi0.33Co1/3Mn1/3O2/Ag for electrochemical lithium recovery from brine
초록 Delithiated Li1−xNi1/3Co1/3Mn1/3O2 (NCM) paired with silver (Ag) is introduced as a new electrochemical system for Li+ recovery from brine. NCM is characterized by its high Li+ selectivity and stability in aqueous environment. At an applied current in brine, NCM was able to intercalate Li+ into its lattice while the Ag captured the Cl− counter-ion. Reversal of the current in a receiving solution prompted the release of LiCl. Under optimal conditions (i = ±0.25 mA cm−2), NCM can produce 96.4% pure Li+ from brine by expending 2.60 W•h mol−1 Li+. The NCM/Ag was able to perform consistently and produce an enriched LiCl solution in cycled operations. These promising results indicate that NCM/Ag can be developed as a high-throughput Li+ mining process with low energy requirement.This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(2018R1D1A1B07048007 and 2009-0093816) and by the Ministry of Science and ICT (No. 2017R1A2B2002109).
저자 Anelyn Bendoy, Rosemarie Ann Cuevas, Grace Nisola, Gebremichael Gebremedhn Tekeste, Mengesha Daniel Nigusse, John Edward Sio, 정욱진, Hiluf Tekle Fissaha, Lawagon Chosel, 이성풍
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