論文

査読有り
2013年

TiO2/Si composites synthesized by sol-gel method and theirimproved electrode performance as Li-ion battery anodes

Electrochimica Acta
  • Hiroyuki Usuia
  • ,
  • Kuniaki Wasada
  • ,
  • Masahiro Shimizu
  • ,
  • Hiroki Sakaguchi

111
開始ページ
575
終了ページ
580
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.electacta.2013.08.015
出版者・発行元
Elsevier Ltd

Composites of rutile-type TiO2and Si were synthesized by a facile sol-gel method for a high-performanceanode of Li-ion battery. We have investigated anode performance of binder-free thick-film electrodesprepared by a gas-deposition method using the TiO2/Si composites obtained. The composite electrodeexhibited a remarkably improved cyclability and a good high-rate performance: a discharge capacity atthe 900th cycle was 710 mAh g -1, and a specific capacity per Si weight was as large as 1870 mAh g(Si)-1even at a high current rate of 4.8 C. It is suggested that a fast Li-ion diffusion in TiO2provides smoothinsertion/extraction of Li-ion into/from the composite electrodes. The results offer a utility of rutile TiO2as a Li-ion conductor in Si-based electrodes for the next-generation Li-ion battery.© 2013 Elsevier Ltd. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.electacta.2013.08.015
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000329531100074&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.electacta.2013.08.015
  • ISSN : 0013-4686
  • SCOPUS ID : 84883609128
  • Web of Science ID : WOS:000329531100074

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