Inverse vulcanization of elemental sulfur and styrene for polymeric cathodes in Li‐S batteries |
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| Authors: | Yueyan Zhang Jared J. Griebel Philip T. Dirlam Ngoc A. Nguyen Richard S. Glass Michael E. Mackay Kookheon Char Jeffrey Pyun |
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| Affiliation: | 1. Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona;2. Department of Materials Science and Engineering, University of Delaware, Newark, Delaware;3. Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware;4. School of Chemical and Biological Engineering, Program for Chemical Convergence for Energy & Environment, The National Creative Research Initiative Center for Intelligent Hybrids, Seoul, Korea |
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| Abstract: | High sulfur content copolymers were prepared via the inverse vulcanization of elemental sulfur with styrene. This reaction was carried out at a relatively low temperature and invokes a new chain transfer mechanism of abstraction of benzylic protons to form stable copolymers. The use of styrene as a comonomer for inverse vulcanization was attractive due to the low cost and wide spread industrial use of styrenics in free radical processes. The copolymers were used as the active cathode material in Li‐S batteries that exhibited outstanding device performance, maintaining 489 mAh/g capacity after 1000 cycles. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55, 107–116 |
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| Keywords: | polysulfides electrochemistry copolymerization inverse vulcanization Li‐S batteries |
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