Journal
ENERGY TECHNOLOGY
Volume 6, Issue 11, Pages 2115-2119Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201800168
Keywords
Cathode materials; V2O5; Graphene nanosheets; Lithium ion battery; Sandwich Structure
Categories
Funding
- National Natural Science Foundation of China [21646012]
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2016DX08]
- China Postdoctoral Science Foundation [2016M600253, 2017T100246]
- Postdoctoral Foundation of Heilongjiang Province
- Fundamental Research Funds for the Central Universities [HIT. NSRIF. 201836]
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The conventional cathode cannot meet the constantly increasing demand for high specific capacity in next generation cathode. V2O5 is an attractive cathode material due to its high theoretical specific capacity (294 mAh g(-1)) and affordable cost. Herein, we report a facile process for the fabrication of 2D sandwich-like V2O5@Graphene nanosheets. Profiting from a synergic strategy inhibiting stacked layered structure and enhanced ion transport within interlayer, the sandwich-like V2O5@Graphene composite exhibits exceptional high initial reversible capacity (300 mAh g(-1) at the 0.5 C), excellent cyclic stability (203 mAh g(-1) after 245 cycles) and high-rate capability (165 mAh g(-1) at the 10 C).
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