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Superior Sodium Storage of Carbon-Coated NaV6O15 Nanotube Cathode: Pseudocapacitance Versus Intercalation.
Song, Xuexia; Li, Jicheng; Li, Zhaohui; Xiao, Qizhen; Lei, Gangtie; Hu, Zhongliang; Ding, Yanhuai; Kheimeh Sari, Hirbod Maleki; Li, Xifei.
Afiliação
  • Song X; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Hunan 411105 , P. R. China.
  • Li J; Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering , Xi'an University of Technology , Xi'an , Shaanxi 710048 , P. R. China.
  • Li Z; Shaanxi International Joint Research Centre of Surface Technology for Energy Storage Materials , Xi'an , Shaanxi 710048 , China.
  • Xiao Q; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Hunan 411105 , P. R. China.
  • Lei G; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Hunan 411105 , P. R. China.
  • Hu Z; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Hunan 411105 , P. R. China.
  • Ding Y; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Hunan 411105 , P. R. China.
  • Kheimeh Sari HM; College of Metallurgy and Material Engineering , Hunan University of Technology , Hunan 412007 , P. R. China.
  • Li X; Institute of Fundamental Mechanics and Materials Engineering , Xiangtan University , Hunan 411105 , P. R. China.
ACS Appl Mater Interfaces ; 11(11): 10631-10641, 2019 Mar 20.
Article em En | MEDLINE | ID: mdl-30799600
To realize the effect of Na+ pseudocapacitance on the sodium storage of cathode materials, clewlike carbon-coated sodium vanadium bronze (NaV6O15) nanotubes (Na-VBNT@C) were synthesized via a facile combined sol-gel/hydrothermal method. The resultant Na-VBNT@C delivers high reversible capacities of 209 and 105 mA h g-1 at the rates of 0.1 and 10 C, respectively. Notably, at the higher rate of 5 C (1250 mA g-1), it can retain 94% of the initial capacity after 3000 cycles. It was found that the outstanding rate performance and the long-term cycling life of Na-VBNT@C are primarily due to the Na+ pseudocapacitance. Our study reveals that the design of Na+ pseudocapacitance is beneficial for harvesting the superior performance of NaV6O15 cathode material in sodium-ion batteries.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article