Exfoliated MoS2 Nanocomposite as an Anode Material for Lithium Ion Batteries
Nanocomposites of molybdenum disulfide (MoS2) and poly(ethylene oxide) (PEO) were prepared by the exfoliation/absorption method that involved the hydrolysis of lithiated MoS2 in an aqueous solution of PEO. The absorption and subsequent interaction of PEO on the colloidal MoS2 formed a nanocomposite which restacked into layered secondary particles. X-ray diffraction and high resolution TEM indicated that highly disordered nanocomposites were produced when the Lix(PEO)yMoS2 stoichiometry was limited to y < 1. An improvement of greater than 5x in capacity accompanied by high cycle stability and efficiency was observed for the disordered nanocomposites providing a novel approach to utilize low-cost MoS2 and similar materials for a high capacity energy storage system.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 992007
- Report Number(s):
- PNNL-SA-72496
- Journal Information:
- Chemistry of Materials, 22(16):4522-4524, Journal Name: Chemistry of Materials, 22(16):4522-4524 Journal Issue: 16 Vol. 22; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
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