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

被引：157

作者：

Zhang, Yueyan ^{[1
]}

Griebel, Jared J. ^{[1
]}

Dirlam, Philip T. ^{[1
]}

Nguyen, Ngoc A. ^{[2
]}

Glass, Richard S. ^{[1
]}

Mackay, Michael E. ^{[2
,3
]}

Char, Kookheon ^{[4
]}

Pyun, Jeffrey ^{[1
,4
]}

机构：

[1] Univ Arizona, Dept Chem & Biochem, 1306 East Univ Blvd, Tucson, AZ 85721 USA

[2] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA

[3] Univ Delaware, Dept Chem & Biomol Engn, 150 Acad St, Newark, DE 19716 USA

[4] Natl Creat Res Initiat Ctr Intelligent Hybrids, Program Chem Convergence Energy & Environm, Sch Chem & Biol Engn, Seoul 151744, South Korea

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2017年 / 55卷 / 01期

基金：

美国国家科学基金会;

关键词：

polysulfides; electrochemistry; copolymerization; inverse vulcanization; Li-S batteries; DYNAMIC COVALENT POLYMERS; HIGH-CAPACITY; COMPOSITE CATHODES; COPOLYMERIZATION; POLYSULFIDE; PERFORMANCE; ACID; CHLOROPRENE; OLIGOMERS; ELECTRODE;

D O I：

10.1002/pola.28266

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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. (c) 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 107-116

引用

页码：107 / 116

页数：10

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