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Study on the capacity fading of pristine and FePO4 coated LiNi1/3Co1/3Mn1/3O2 by Electrochemical and Magnetical techniques
http://hdl.handle.net/2241/00122981
http://hdl.handle.net/2241/00122981ceafede9-7e98-4484-8cc3-1c713b53a3f0
名前 / ファイル | ライセンス | アクション |
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EA_148 (2.1 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2015-01-22 | |||||
タイトル | ||||||
タイトル | Study on the capacity fading of pristine and FePO4 coated LiNi1/3Co1/3Mn1/3O2 by Electrochemical and Magnetical techniques | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Liu, Xizheng
× Liu, Xizheng× Li, De× Li, Huiqiao× Iyo, Akira× Hanada, Nobuko× Ishida, Masayoshi× Zhou, Haoshen |
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著者別名 |
劉, 喜正
× 劉, 喜正× 花田, 信子× 石田, 政義 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Capacity fading mechanism of pristine and FePO4-coated LiNi1/3Co1/3Mn1/3O2 has been studied by electrochemical and magnetic methods. Along with cycles, significant increase of cell polarization and charger transfer resistance (Rct), which mainly cause the capacity fading at the initial charge/discharge cycles, have been observed according to the cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analysis. In comparison, the existence of FePO4 coating layer can effectively suppress the deterioration of surface polarization and increase of Rct at the interface of electrode/electrolyte. The coated sample suppress the decrease of Li+ diffusion coefficient with prolonged cycles according to the galvanostatic intermittent titration technique (GITT) tests. It also shows larger Weiss constants (fitting above 130 K) and lower blocking temperatures, which indicate the surface coating can suppress the deterioration of Li/Ni disorder upon repeated cycles. This study may give the researchers some light on understanding the capacity fading mechanism of LiNi1/3Co1/3Mn1/3O2 and the effects of surface coating layer, and thus, give help to the future designing of superior coating layers for layered cathode materials in Li-ion batteries. | |||||
書誌情報 |
Electrochimica acta 巻 148, p. 26-32, 発行日 2014-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0013-4686 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00633261 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.electacta.2014.10.018 | |||||
権利 | ||||||
権利情報 | © 2014 Elsevier Ltd. | |||||
権利 | ||||||
権利情報 | NOTICE: this is the author’s version of a work that was accepted for publication in Electrochimica acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION, 148,(2014) DOI:10.1016/j.electacta.2014.10.018 | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Elsevier |