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Hydrothermal synthesis of sodium vanadate nanobelts as high-performance cathode materials for lithium batteries

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WOS被引频次:11
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成果类型:
期刊论文
作者:
Yang, Kaiwen;Fang, Guozhao;Zhou, Jiang*;Qin, Mulan;Tang, Yan;Pan, Anqiang;Liang, Shuquan*梁叔全
通讯作者:
Zhou, Jiang;Liang, Shuquan
作者机构:
[Liang, Shuquan; Zhou, Jiang; Fang, Guozhao; Yang, Kaiwen; Pan, Anqiang; Qin, Mulan; Zhou, J; Liang, SQ; Tang, Yan] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
[Liang, Shuquan; Zhou, Jiang; Pan, Anqiang; Tang, Yan] Cent S Univ, Minist Educ, Key Lab Nonferrous Met Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构:
[Zhou, J; Liang, SQ] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
语种:
英文
关键词:
Sodium vanadate;Nanobelts;Cyclic stability;Structural stability;Cathode;Lithium-ion batteries
期刊:
Journal of Power Sources
ISSN:
0378-7753
年:
2016
卷:
325
页码:
383-390
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:材料科学;WOS学科类别:Chemistry, Physical;Electrochemistry;Energy & Fuels;Materials Science, Multidisciplinary
入藏号:
WOS:000381165600044;EI:20164102897332
基金类别:
National High Technology Research and Development Program of China (863 Program) [2013AA110106]; National Natural Science Foundation of China [51374255, 51572299]; Fundamental Research Funds for the Central Universities of Central South University [2015zzts174]
机构署名:
本校为第一且通讯机构
院系归属:
材料科学与工程学院
摘要:
The sodium vanadate (Na<inf>0.76</inf>V<inf>6</inf>O<inf>15</inf>) nanobelts have been successfully synthesized via a facile hydrothermal reaction followed by annealing. The ultra-long nanobelts have a length ranging from several micrometers to several dozens of micrometers. As cathode materials for lithium-ion batteries, the Na<inf>0.76</inf>V<inf>6</inf>O<inf>15</inf>nanobelts exhibit high discharge capacity, excellent cyclic stability and good rate capability. High discharge capacity of 248 and 214&nbsp;mA&nbsp;h&nbsp;g<sup>&minus;1</sup>can be obtained at the current density of 300 and 500&nbsp;mA&nbsp;g<sup>&minus;1</sup>, respectively. Meanwhile, it maintains a stable capacity of 113&nbsp;mA&nbsp;h&nbsp;g<sup>&minus;1</sup>after 200 cycles at a high current density of 2000&nbsp;mA&nbsp;g<sup>&minus;1</sup>with no capacity decay. The superior electrochemical performances may be attributed to the novel nanobelts structure and excellent structural stability of Na<inf>0.76</inf>V<inf>6</inf>O<inf>15</inf>. &copy;2016 Elsevier B.V.

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