Electrochemical Properties of Monoclinic NaNiO2
Monoclinic NaNiO[subscript 2] is re-investigated as a positive electrode material for sodium ion batteries. We observe reversible Na extraction and insertion of about 120 mAh/g when NaNiO[subscript 2] is cycled between 1.25 V and 3.75 V, though discharge only proceeds to Na0.91NiO[subscript 2]. The...
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Electrochemical Society
2013
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Online Access: | http://hdl.handle.net/1721.1/82533 |
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author | Vassilaras, Plousia E. Ma, Xiaohua Li, Xin Ceder, Gerbrand |
author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Vassilaras, Plousia E. Ma, Xiaohua Li, Xin Ceder, Gerbrand |
author_sort | Vassilaras, Plousia E. |
collection | MIT |
description | Monoclinic NaNiO[subscript 2] is re-investigated as a positive electrode material for sodium ion batteries. We observe reversible Na extraction and insertion of about 120 mAh/g when NaNiO[subscript 2] is cycled between 1.25 V and 3.75 V, though discharge only proceeds to Na0.91NiO[subscript 2]. The voltage profile shows large and pronounced steps, which are fully reversible. Charging to 4.5 V leads to higher charge and discharge capacity, though with poor coulombic efficiency and rapid capacity fade. X-ray diffraction of charged samples indicates that high voltage charging leads to the formation of an inactive phase. |
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institution | Massachusetts Institute of Technology |
language | en_US |
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publishDate | 2013 |
publisher | Electrochemical Society |
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spelling | mit-1721.1/825332022-09-28T11:02:12Z Electrochemical Properties of Monoclinic NaNiO2 Vassilaras, Plousia E. Ma, Xiaohua Li, Xin Ceder, Gerbrand Massachusetts Institute of Technology. Department of Materials Science and Engineering Vassilaras, Plousia E. Ma, Xiaohua Li, Xin Ceder, Gerbrand Monoclinic NaNiO[subscript 2] is re-investigated as a positive electrode material for sodium ion batteries. We observe reversible Na extraction and insertion of about 120 mAh/g when NaNiO[subscript 2] is cycled between 1.25 V and 3.75 V, though discharge only proceeds to Na0.91NiO[subscript 2]. The voltage profile shows large and pronounced steps, which are fully reversible. Charging to 4.5 V leads to higher charge and discharge capacity, though with poor coulombic efficiency and rapid capacity fade. X-ray diffraction of charged samples indicates that high voltage charging leads to the formation of an inactive phase. National Science Foundation (U.S.) (MRSEC Program, award number DMR–0819762) 2013-11-21T20:51:17Z 2013-11-21T20:51:17Z 2012-11 2012-11 Article http://purl.org/eprint/type/JournalArticle 0013-4651 1945-7111 http://hdl.handle.net/1721.1/82533 Vassilaras, P., X. Ma, X. Li, and G. Ceder. Electrochemical Properties of Monoclinic NaNiO2. Journal of the Electrochemical Society 160, no. 2 (November 28, 2012): A207-A211.© 2012 The Electrochemical Society. en_US http://dx.doi.org/10.1149/2.023302jes Journal of the Electrochemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Electrochemical Society MIT web domain |
spellingShingle | Vassilaras, Plousia E. Ma, Xiaohua Li, Xin Ceder, Gerbrand Electrochemical Properties of Monoclinic NaNiO2 |
title | Electrochemical Properties of Monoclinic NaNiO2 |
title_full | Electrochemical Properties of Monoclinic NaNiO2 |
title_fullStr | Electrochemical Properties of Monoclinic NaNiO2 |
title_full_unstemmed | Electrochemical Properties of Monoclinic NaNiO2 |
title_short | Electrochemical Properties of Monoclinic NaNiO2 |
title_sort | electrochemical properties of monoclinic nanio2 |
url | http://hdl.handle.net/1721.1/82533 |
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