論文

査読有り
2016年

All-Solid-State Lithium-Sulfur Battery with High Energy and Power Densities at the Cell Level

Energy Technology
  • Nagata, Hiroshi
  • ,
  • Chikusa, Yasuo

4
4
開始ページ
484
終了ページ
489
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/ente.201500297
出版者・発行元
WILEY-V C H VERLAG GMBH

The performance of an all-solid-state lithium-sulfur battery, comprised of a positive composite electrode with high P/S ratio (number of phosphorus atoms/number of sulfur atoms) and solid electrolyte, is investigated at 25 degrees C at several loading weights of the positive electrode. The activation energy is nearly independent of the loading weight of the positive composite electrode. This suggests that influence of the sulfur reactivity is significantly larger than those of the ionic and electric conductivities. This positive composite electrode provides a capacity of above 1550mAhg(-1) (sulfur) at 1.3mAcm(-2) and above 6600Wkg(-1) (sulfur) at 50% state-of-charge for a loading weight of 8.3mgcm(-2). Moreover, in using this positive electrode, the energy and power densities are estimated to be 520Whkg(-1) (970WhL(-1)) and 1230Wkg(-1) (2300WL(-1)), respectively, at the cell level (18650). Furthermore, the cycling performance of the cell with this composite positive electrode is excellent over severalhundred cycles.

Web of Science ® 被引用回数 : 30

リンク情報
DOI
https://doi.org/10.1002/ente.201500297
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000374018300004&DestApp=WOS_CPL
URL
http://orcid.org/0000-0002-0390-6102

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