Inverse Vulcanization of Elemental Sulfur to Prepare Polymeric Electrode Materials for Li鈥揝 Batteries

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• 作者：Adam G. Simmonds ; Jared J. Griebel ; Jungjin Park ; Kwi Ryong Kim ; Woo Jin Chung ; Vladimir P. Oleshko ; Jenny Kim ; Eui Tae Kim ; Richard S. Glass ; Christopher L. Soles ; Yung-Eun Sung ; Kookheon Char ; Jeffrey Pyun
• 刊名：ACS Macro Letters
• 出版年：2014
• 出版时间：March 18, 2014
• 年：2014
• 卷：3
• 期：3
• 页码：229-232
• 全文大小：337K
• 年卷期：v.3,no.3(March 18, 2014)
• ISSN：2161-1653

文摘

Sulfur-rich copolymers based on poly(sulfur-random-1,3-diisopropenylbenzene) (poly(S-r-DIB)) were synthesized via inverse vulcanization to create cathode materials for lithium鈥搒ulfur battery applications. These materials exhibit enhanced capacity retention (1005 mAh/g at 100 cycles) and battery lifetimes over 500 cycles at a C/10 rate. These poly(S-r-DIB) copolymers represent a new class of polymeric electrode materials that exhibit one of the highest charge capacities reported, particularly after extended charge鈥揹ischarge cycling in Li鈥揝 batteries.