Synthesis of severe lattice distorted MoS2 coupled with hetero-bonds as anode for superior lithium-ion batteries. (1st February 2018)

• Record Type: Journal Article
• Authors: Liu, Yanyan; Zhang, Long; Wang, Hongqiang; Yu, Chuang; Yan, Xinlin; Liu, Qiunan; Xu, Bo; Wang, Li-min
• Is Part Of: Electrochimica acta. Volume 262(2018)
• Page Start: 162
• Page End: 172
• Publication Date: 2018-02-01
• Subjects: MoS2 -- Polyethylene glycol -- Oxygen-containing groups -- Lattice distortion -- Lithium-ion batteries; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2018.01.023
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Exploration of advanced anode materials is a highly relevant research topic for next generation lithium-ion 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 MoOC (and MoO) hetero-bonds. PEG-assisted synthesis is believed applicable to other anode materials with a layered structure for lithium-ion batteries. Graphical abstract: Image 1