Journal
DALTON TRANSACTIONS
Volume 44, Issue 1, Pages 146-150Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4dt02988g
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Funding
- National Natural Science Foundation of China [51204058]
- Fujian Education Department [JA12037]
- open project in Key Lab Adv. Energy Mat. Chem. (Nankai University) [KLAEM-C-OP201201]
- China Scholarship Council (CSC)
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A simple and versatile method for preparation of new crystalline vanadium oxide hydrate semi-microspheres is developed via a simple hydrothermal route, which are tested as a novel high-energy anode materials for sodium-ion batteries. The enhancement of electrochemical performance for the vanadium oxide hydrate electrode is offered by addition of graphene. The graphene-based vanadium oxide hydrate microsphere composite shows a high discharge capacity of 336.1 mA h g(-1) for the second cycle between a 0.05-3.0 V voltage limit at a discharge current density of 10 mA g(-1). A reversible capacity of 303.1 mA h g(-1) is retained after 20 cycles.
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