摘要
VS4 has gained more and more attention for its high theoretical capacity (449 mAh/g with 3e^- transfer) in lithium ion batteries (LIBs). Herein, a layered structure VS4 anchored in graphene aerogels is prepared and first reported as cathode material for LIBs. VS4@GAs composite exhibits an exceptional high initial reversible capacity (511 mAh/g), an excellent high-rate capability (191 mAh/g at the 5 C), and an excellent cyclic stability (239 mAh/g after 15 cycles).
基金
This work was supported by the National Natural Science Foundation of China (Grant No. 21646012)
the State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No. 2016DX08)
China Postdoctoral Science Foundation (Nos. 2016M600253, and 2017T100246)
the Postdoctoral Foundation of Heilongjiang Province, and the Fundamental Research Funds for the Central Universities (Grant No. HIT.NSRIF.201836).
