論文

査読有り
2016年3月

Electrochemically active copolymers prepared from elemental sulfur and bis(alkenyl) compounds having crown ether unit

Polymer
  • Kazuhiro Yamabuki
  • ,
  • Kanae Itaoka
  • ,
  • In-tae Kim
  • ,
  • Nobuko Yoshimoto
  • ,
  • Hiromori Tsutsumi

91
開始ページ
6
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.polymer.2016.03.047

© 2016 Elsevier Ltd. All rights reserved. We prepared random copolymers from elemental sulfur (S) and bis(alkenyl) compound with crown ether (BUMB18C6). The resulted random copolymers, poly(S-r-BUMB18C6) were soluble in the organic solvents, tetrahydrofuran, N-methyl-2-pyrrolidone, and chloroform. The Ketjenblack (KB) and acetylene black (AB) particles were treated with the copolymer solution. TEM and EDS results of the treated carbon particles indicate that the incorporation of the copolymer into the KB cavities. The attachment of the copolymer to the AB particles was not observed, obviously. The copolymers in the KB particles showed the electrochemical responses based on the redox reaction of their polysulfide chains in organic electrolyte solution (1.0 mol dm -3 lithium bis(trifluoromethane)sulfonamide in 1:1 (v/v) mixture of 1,3-dioxolane and 1,2-dimethoxy- ethane). The lithium coin cells having the copolymer electrode were constructed and their charge-discharge behaviors were also tested under constant current conditions. Coulombic efficiency the test cells with poly(S-r-BUMB18C6-0.5)/KB electrode was over 95% at 100th cycle and the average capacity through the 100 cycles was 286 Ah kg -1 .

リンク情報
DOI
https://doi.org/10.1016/j.polymer.2016.03.047
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201602288525077977
URL
http://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2016010010

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