Inverse vulcanization of elemental sulfur and styrene for polymeric cathodes in Li-S batteries

Yueyan Zhang; Jared J. Griebel; Philip T. Dirlam; Ngoc A. Nguyen; Richard S. Glass; Michael E. Mackay; Kookheon Char; Jeffrey Pyun

doi:10.1002/pola.28266

Inverse vulcanization of elemental sulfur and styrene for polymeric cathodes in Li-S batteries

Yueyan Zhang, Jared J. Griebel, Philip T. Dirlam, Ngoc A. Nguyen, Richard S. Glass, Michael E. Mackay, Kookheon Char, Jeffrey Pyun

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

143 Scopus citations

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.

Original language	English (US)
Pages (from-to)	107-116
Number of pages	10
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	55
Issue number	1
DOIs	https://doi.org/10.1002/pola.28266
State	Published - Jan 1 2017

Keywords

Li-S batteries
copolymerization
electrochemistry
inverse vulcanization
polysulfides

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1002/pola.28266

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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.",

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AU - Zhang, Yueyan

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AU - Dirlam, Philip T.

AU - Nguyen, Ngoc A.

AU - Glass, Richard S.

AU - Mackay, Michael E.

AU - Char, Kookheon

AU - Pyun, Jeffrey

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AB - 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.

KW - Li-S batteries

KW - copolymerization

KW - electrochemistry

KW - inverse vulcanization

KW - polysulfides

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Inverse vulcanization of elemental sulfur and styrene for polymeric cathodes in Li-S batteries

Abstract

Keywords

ASJC Scopus subject areas

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