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 鳥取大学研究者総覧 KAKEN研究者をさがす
Kiri Yusuke Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
Sakaguchi Hiroki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
キーワード
Si anode
Thick-film electrode
Gas-deposition method
Carrier gas
Li-ion battery
NDC分類
5類 技術・工学・工業
抄録
Silicon thick-film electrodes for Li-ion battery anodes were prepared by a gas-deposition method using carrier gases of Ar and He. We investigated the effect of the carrier gases on film morphology and anode performance. The root mean square roughness of the films formed by He gas was twice larger than that formed by Ar gas. The Si electrode obtained by He gas exhibited a larger film thickness up to 4 mm, a higher initial capacity of 2280 mA h g-1, and larger capacities until 40th cycle compared with other electrodes. The better performance is probably attributed to a formation of many interspaces within the thick film. It is suggested that these interspaces enhanced contact area between active material and electrolyte, which enabled an efficient alloying/dealloying reaction of Li–Si.
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/S004060901200942X
ISSN・ISBN
0040-6090
書誌ID
AA00863068
掲載誌名
Thin solid films
最新掲載誌名
Thin solid films
520
23
開始ページ
7006
終了ページ
7010
発行日
2012-09-30
DOI
著者版フラグ
著者版
著作権表記
Copyright © 2012 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
Thin solid films. 2012, 520(23), 7006-7010
部局名
工学部・工学研究科
言語
英語