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Enhanced cyclability using polyindole modified cathode material for lithium sulphur battery

Abstract

Here we report a novel multiwall carbon nanotube/sulphur/polyindole (MWCNT/S/PIN) nanocomposite as a cathode material for Lithium – sulphur (Li - S) batteries to alleviate capacity decay. A nanocomposite cathode material is synthesized by chemical precipitation of sulphur onto functionalized MWCNT followed by insitu polymerization of indole. MWCNT/S/PIN nanocomposite exhibits 1490 mA h g-1 as initial specific capacity and enhanced cycling stability compared to the binary nanocomposite (MWCNT/S). The MWCNT/S/PIN composite cathode displays 1043 mA h g-1 after 100 cycles at 0.1C rate with 70% capacity retention. The better electrochemical performance of ternary nanocomposite cathode material is attributed to the synergistic effect of functionalized MWCNT and polyindole which provides improved conductivity and effective fencing of intermediate polysulphides

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Publication details

The article was received on 21 Apr 2017, accepted on 05 Aug 2017 and first published on 07 Aug 2017


Article type: Paper
DOI: 10.1039/C7SE00210F
Citation: Sustainable Energy Fuels, 2017, Accepted Manuscript
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    Enhanced cyclability using polyindole modified cathode material for lithium sulphur battery

    R. Chulliyote, H. Hareendrakrishna kumar, R. Murugan, M. G. Joseph and A. M. Stephan, Sustainable Energy Fuels, 2017, Accepted Manuscript , DOI: 10.1039/C7SE00210F

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