期刊
MATERIALS TODAY-PROCEEDINGS
卷 4, 期 3, 页码 4567-4571出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matpr.2017.04.031
关键词
Lithium-ion batteries; molybdenum sulfide; self-propagating high-temperature synthesis; nanopowder
资金
- Institute of Batteries LLC under the Ministry of Education and Science of Kazakhstan [5097/GF4]
Due to continuous rise of demand for powerful energy sources for portable applications, high energy density and efficiency rechargeable batteries are under constant development. Currently, the most widely used power source for such applications is rechargeable lithium-ion batteries (LIBs). To increase the energy density, rate capability and cyclability of LIBs, alternative anode materials, such as MoS2, are under intensive investigation. The layered structure of MoS2 resembles graphite, and its theoretical specific capacity is about twice higher than that of graphite (670 mAh g(-1) against 372 mAh g(-1)) due to its higher interlayer spacing (similar to 0.6 nm) for a Li-ion intercalation. In this work MoS2 nanopowder (MoS2-NP), prepared by self-propagating high-temperature synthesis (SHS), is used as an anode material (MoS2/C composition) for LIBs, and its electrochemical properties were analyzed. The MoS2-NP anode exhibited the initial charge capacity of 567 mAh g(-1) at a current density of 50 mAh g(-1). This performance will be improved by introduction of MoS2-NP into various carbon-containing composites. (C) 2017 Published by Elsevier Ltd.
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