Synthesis of severe lattice distorted MoS2 coupled with hetero-bonds as anode for superior lithium-ion batteries

Yanyan Liu, Long Zhang, Hongqiang Wang, Chuang Yu, Xinlin Yan, Qiunan Liu, Bo Xu, Li min Wang

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)
19 Downloads (Pure)

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 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.

Original languageEnglish
Pages (from-to)162-172
Number of pages11
JournalElectrochimica Acta
Volume262
DOIs
Publication statusPublished - 2018

Keywords

  • Lattice distortion
  • Lithium-ion batteries
  • MoS
  • Oxygen-containing groups
  • Polyethylene glycol

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