| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-08-22 |
| タイトル |
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タイトル |
Impact of 2-Vinylpyridine as Electrolyte Additive on Surface and Electrochemistry of Graphite for C/LiMn2O4 Li-Ion Cells |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Komaba, S
Itabashi, T
Ohtsuka, T
Groult, H
Kumagai, N
Kaplan, B
Yashiro, H
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| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University, Department of Applied Chemistry, Faculty of Science, Tokyo University of Science |
| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University |
| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University |
| 著者(機関) |
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値 |
Pierre and Marie Curie University |
| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University |
| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University, Pierre and Marie Curie University |
| 著者(機関) |
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値 |
Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University |
| 登録日 |
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日付 |
2014-08-22 |
| 書誌情報 |
Journal of The Electrochemical Society
巻 152,
号 5,
p. A937-A946,
発行日 2005-01-01
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| Abstract |
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内容記述タイプ |
Other |
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内容記述 |
For lithium-ion batteries of C∕(spinel Li-Mn-O) , severe capacity loss occurs after storage of the battery at> 50°C. According to our previous studies, this occurrence is predominantly attributable to degradation of the carbon anode, which was induced by electroreduction of Mn(II) dissolved from the spinel; this step is followed by the irreversible electrochemical reaction at the graphite∕(Mn deposits)∕electrolyte interface. 2-Vinylpyridine (VP) used as an additive in the electrolyte suppressed this degradation; therefore, improving the battery performances. During the first “charge,” the electrochemical reductive polymerization of VP monomers at about 0.9 V vs. Li/Li+ resulted in the film formation of poly(2-vinylpyridine) on the graphite surface. The quantity of charge passed for the polymeric film formation depends on the amount of VP addition. Surface analyses using X-ray photoelectron spectroscopy and electron microscopy confirmed that the electrodeposited film blocked the electroreduction of dissolved Mn(II) on the graphite electrode. |
| 出版者 |
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出版者 |
The Electrochemical Society, Inc. |
| 権利 |
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権利情報 |
© The Electrochemical Society, Inc. 2005. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of The Electrochemical Society. |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1149/1.1885385 |
| 著者版フラグ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
ecs-v152n5ppA937-A946.pdf (1.1 MB)
