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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