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Nano Research

Article Title

Vesicular Li3V2(PO4)3/C hollow mesoporous microspheres as an efficient cathode material for lithium-ion batteries

Authors

Hongxia Sun, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China
Haoran Du, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China
Mengkang Yu, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China
Kuangfu Huang, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China
Nan Yu, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China
Baoyou Geng, College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, NO. 189 South Jiuhua Road, Wuhu 241002, China

Keywords

Li3V2(PO4)3, aerosol-spray-assisted approach, polyvinylpyrrolidone, vesicular hollow microsphere, electrochemical properties

Abstract

Vesicular lithium vanadium phosphate/carbon hollow mesoporous microspheres were fabricated using a facile polyvinylpyrrolidone-assisted aerosol-spray-assisted method and subsequent heat-treatment. While changing the content of polyvinylpyrrolidone, we found that carbon content was adjustable on the surface of lithium vanadium phosphate. By optimizing the carbon content among the composites, the electrochemical performance can be enhanced significantly. The results of electrochemical performance tests suggested that the samples exhibited good cycle performance and high discharge capability in the voltages between 3.0–4.8 V. The observed excellent electrochemical performances could be attributed to the proper content of carbon coating and the vesicular hollow mesoporous microsphere structure, increasing the transmission rate of lithium ions and reducing the structural change during charging and discharging effectively.

Graphical Abstract

Publisher

Tsinghua University Press

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