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NbSb2 as an anode material for Li-ion batteries
Affiliation:1. School of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. Hubei Key Laboratory of Digital Valley Science and Technology, Huazhong University of Science and Technology, China;3. Power China Zhongnan Engineering Corporation Limited, Changsha 410014, China;1. Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Minami, Koyama-cho, Tottori, 680-8552, Japan;2. Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori, 680-8552, Japan;1. Institute of Materials Chemistry, University of Vienna, Währingerstrasse 42, A-1090, Wien, Austria;2. Institute of Solid State Physics, TU Wien, Wiedner Hauptstrasse, 8-10, A-1040, Wien, Austria;3. Christian Doppler Laboratory for Thermoelectricity, Wien, Austria;4. Department of Materials Science and Engineering, Lviv Polytechnic National University, 79013, Lviv, Ustiyanovycha Str. 5, Ukraine;5. Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090, Wien, Austria;1. Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, College of Chemistry and Chemistry Engineering, Qiqihar University, Qiqihar, 161006, China;2. Heilongjiang Province Key Laboratory of Polymeric Composition Material, College of Materials Science and Engineering, Qiqihar University, Qiqihar, 161006, China
Abstract:Polycrystalline samples of NbSb2 have been synthesized and studied as anode material for lithium-ion batteries. The reaction mechanism of lithium with NbSb2 is investigated by ex situ XRD and cyclic voltammogram studies. Li3Sb and Nb are formed during first discharge and during charge lithium is extracted from Li3Sb. The first cycle discharge capacity is 420 mA hg−1 and first cycle charge capacity is 315 mA hg−1.
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