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
Nomura Masahito Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Nishino Hiroki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Kusatusu Masatoshi Intelligent Chemical Group, R&D Division, Santoku Corp.
Murota Tadatoshi Intelligent Chemical Group, R&D Division, Santoku Corp.
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
Rare-earth metal silicide
Si-based composite anode
Gadolinium silicide
Thick-film electrode
Gas-deposition method
Li-ion battery
NDC分類
5類 技術・工学・工業
抄録
Novel composite materials consisted of elemental Si and rare-earth metal silicides, Sm–Si, Gd–Si, and Dy–Si, were synthesized and were evaluated for the first time as a high-performance anode material of Li-ion battery. Thick-film electrodes of the silicide/Si composites were prepared by an arc melting method and a successive gas-deposition method. Among them, the Gd–Si/Si composite electrode exhibited reversible Li-insertion/extraction reactions and the best cycling performance: the initial Coulombic efficiency was 80% and the discharge capacity at the 1000th cycle was 840 mA h g–1. In addition to this, the composite electrode delivered a superb high-rate performance with the capacity of 2100 mA h g–1 even at the high current rate of 12.0 A g–1 (4.8C). The remarkable performances demonstrated that the gadolinium silicide is favorable to significantly enhance anode properties of Si-based composite electrodes.
出版者
Elsevier
資料タイプ
学術雑誌論文
外部リンク
http://www.sciencedirect.com/science/article/pii/S0167577X14008453
ISSN・ISBN
0167-577X
書誌ID
AA11537623
掲載誌名
Materials letters
最新掲載誌名
Materials letters
130
開始ページ
61
終了ページ
64
発行日
2014-09-01
DOI
著者版フラグ
著者版
著作権表記
Copyright © 2014 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
Materials letters. 2014, 130, 61-64
部局名
工学部・工学研究科
言語
英語