期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 14, 页码 5075-5080出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta01339b
关键词
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资金
- National Basic Research Program of China [2013CB934103, 2012CB933003]
- International Science & Technology Cooperation Program of China [2013DFA50840]
- National Natural Science Foundation of China [51521001, 51272197]
- National Natural Science Fund for Distinguished Young Scholars [51425204]
- Hubei Provincial Natural Science Fund for Distinguished Young Scholars [2014CFA035]
- Fundamental Research Funds for the Central Universities [WUT: 2015-III-021, 2015-III-032]
Hollow microspheres with a high surface area, sufficient void space, and short ion/electron transport distance have attracted much attention as a superior electrode structure for high-rate lithium-ion batteries. In this work, a facile and low-cost hydrothermal approach followed by annealing is developed to synthesize Co3V2O8 interconnected hollow microspheres, which are able to endure an extremely high current density of 20 A g(-1) and achieve a reversible discharge capacity of 320 mA h g(-1). Furthermore, a stable capacity of 424 mA h g(-1) can be obtained after 300 cycles at 10 A g(-1). Such remarkable rate capability and cycling performance make the Co3V2O8 interconnected hollow microspheres a promising anode material for lithium-ion batteries.
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