Title

Rational synthesis of MnO2@CMK/S composite as cathode materials for lithium-sulfur batteries

RIS ID

113007

Publication Details

Liu, J., Wang, C., Liu, B., Ke, X., Liu, L., Shi, Z., Zhang, H. & Guo, Z. (2017). Rational synthesis of MnO2@CMK/S composite as cathode materials for lithium-sulfur batteries. Materials Letters, 195 236-239.

Abstract

Lithium-sulfur batteries with a high energy density are promising energy storage devices. The realization of lithium-sulfur batteries is mainly hindered by the dissolution of the intermediate polysulfides. In the present work, a new physical and chemical entrapment method of the polysulfides has been proposed, which used CMK-3 as the carbon scaffolds and a MnO2 coating layer for chemisorption. Such a bi-functional framework provides efficient trapping for the polysulfides, achieving a reversible capacity of 600 mAh g−1 after 100 cycles at 0.1 C with a 73.4 wt% sulfur loading in the composite.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.matlet.2017.02.116