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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

Studies of Capacity Losses in Cycles and Storages for a Li1.1Mn1.9 O 4 Positive Electrode

http://hdl.handle.net/2237/18423
http://hdl.handle.net/2237/18423
b0dede00-065d-459e-81fa-f52e1767b107
名前 / ファイル ライセンス アクション
J_Electrochem_Soc_2004-Saitoh-A17-22.pdf J_Electrochem_Soc_2004-Saitoh-A17-22.pdf (337.0 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-08-28
タイトル
タイトル Studies of Capacity Losses in Cycles and Storages for a Li1.1Mn1.9 O 4 Positive Electrode
言語 en
著者 Saitoh, Motoharu

× Saitoh, Motoharu

WEKO 49084

en Saitoh, Motoharu

Search repository
Sano, Mitsuru

× Sano, Mitsuru

WEKO 49085

en Sano, Mitsuru

Search repository
Fujita, Miho

× Fujita, Miho

WEKO 49086

en Fujita, Miho

Search repository
Sakata, Makoto

× Sakata, Makoto

WEKO 49087

en Sakata, Makoto

Search repository
Takata, Masaki

× Takata, Masaki

WEKO 49088

en Takata, Masaki

Search repository
Nishibori, Eiji

× Nishibori, Eiji

WEKO 49089

en Nishibori, Eiji

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 © The Electrochemical Society, Inc. 2003. 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. v.151, n.1, 2004, p.A17-A22.
キーワード
主題Scheme Other
主題 lithium compounds
キーワード
主題Scheme Other
主題 electrochemical electrodes
キーワード
主題Scheme Other
主題 secondary cells
キーワード
主題Scheme Other
主題 electron density
キーワード
主題Scheme Other
主題 bonds (chemical)
抄録
内容記述 A spinel-type of lithium-rich lithium manganese oxide, Li1.1Mn1.9O4, was prepared and studied electrochemically and structurally as a positive electrode of a Li-ion battery. In cycle performance tests, capacity losses were 3 and 11 mAh/g after 75 cycles at 25 and 55°C, respectively, corresponding to 15 and 50 mAh/g for a normal lithium manganese oxide, LiMn2O4. Their losses were divided into two parts; one resulting from the deterioration of the active material itself and the other due to the poor conduction of the active material to the collector. The former and latter contributions to the losses at 55°C were 2 and 9 mAh/g, respectively for the Li-rich spinel, and 18 and 32 mAh/g, respectively for the normal spinel. The capacity loss by the poor conduction was apparently much larger for both spinels of positive electrodes. Cycle performance tests in each region of the charge states divided into five regions show that relatively larger capacity losses were observed in lower potential states. However, in every region, a capacity loss for the Li-rich spinel was much smaller than that of the normal spinel. There was a close relation found between capacity losses in the storage and those in the cycle. Electron densities spreading between manganese and oxygen atoms were larger in the Li-rich than in the normal spinels. Thus, it turned out that the structure of the Li-rich spinel was made more stable because of strong Mn-O bonds.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 The Electrochemical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1149/1.1630038
ISSN
収録物識別子タイプ PISSN
収録物識別子 0013-4651
書誌情報 en : Journal of The Electrochemical Society

巻 151, 号 1, p. A17-A22, 発行日 2004
著者版フラグ
値 publisher
URI
識別子 http://dx.doi.org/10.1149/1.1630038
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/18423
識別子タイプ HDL
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