フルテキストファイル
著者
Usui Hiroyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Wasada Kuniaki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Shimizu Masahiro Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Sakaguchi Hiroki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
キーワード
TiO2/Si composite
Li-ion battery anode
Sol-gel method
Gas-deposition
Li-ion diffusion
NDC分類
5類 技術・工学・工業
抄録
Composites of rutile-type TiO2 and Si were synthesized by a facile sol-gel method for a high-performance anode of Li-ion battery. We have investigated anode performance of binder-free thick-film electrodes prepared by a gas-deposition method using the TiO2/Si composites obtained. The composite electrode exhibited a remarkably improved cyclability and a good high-rate performance: a discharge capacity at the 900th cycle was 710 mA h g–1, and a specific capacity per Si weight was as large as 1870 mA h g(Si)–1 even at a high current rate of 4.8C. It is suggested that a fast Li-ion diffusion in TiO2 provides smooth insertion/extraction of Li-ion into/from the composite electrodes. The results offer a utility of rutile TiO2 as a Li-ion conductor in Si-based electrodes for the next-generation Li-ion battery.
出版者
Elsevier
資料タイプ
学術雑誌論文
外部リンク
ISSN・ISBN
0013-4686
書誌ID
AA11525861
掲載誌名
Electrochimica acta
最新掲載誌名
Electrochimica acta
111
開始ページ
575
終了ページ
580
発行日
2013-11-30
出版者DOI
著者版フラグ
著者版
著作権表記
Copyright © 2013 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
掲載情報
Electrochimica acta. 2013, 111, 575-580
部局名
工学部・工学研究科
言語
英語