期刊
ELECTROCHIMICA ACTA
卷 262, 期 -, 页码 162-172出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.01.023
关键词
MoS2; Polyethylene glycol; Oxygen-containing groups; Lattice distortion; Lithium-ion batteries
资金
- National Science Foundation of China [51525205]
- Foundation of Higher Education of Hebei [ZD2016033]
Exploration of advanced anode materials is a highly relevant research topic for next generation lithiumion batteries. Here, we report severe lattice distorted MoS2 nanosheets with a flower-like morphology prepared with PEG400 as additive, which acts not only as surfactant but importantly, also as reactant. Notably, in the absence of a carbon-related incorporation/decoration, it demonstrates superior electrochemical performance with a high reversible capacity, a good cycling stability, and an excellent rate capability, originated from the advantages of synthesized MoS2 including enlarged interlayer spacing, 1T-like metallic behavior, and coupling of Mo-O-C (and Mo-O) hetero-bonds. PEG-assisted synthesis is believed applicable to other anode materials with a layered structure for lithium-ion batteries. (C) 2018 Elsevier Ltd. All rights reserved.
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