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Vacancy-induced manganese vanadates and their potential application to Li-ion batteries
Martin K Dufficy1, Lan Luo, Peter S Fedkiw
1Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA. fedkiw@ncsu.edu.
Abstract:
We report on the synthesis and characterization of a novel manganese vanadate, Mn1.5(H2O)(NH4)V4O12, with rare in situ disorder of Mn(H2O)2(2+)/2NH4(+). We show that vacancies created by ammonium ions and coordinating water molecules within the manganese vanadate crystal structure yield high-charge capacity, favorable rate capability, and long cycle life in Li-ion half-cells.
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