Journal
MATERIALS
Volume 11, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/ma11071056
Keywords
LiMn2O4-graphene; flexible film; rechargeable hybrid aqueous batteries; electrochemical performance
Categories
Funding
- Natural Science Fund of Ankang University for high-level talents
- Subject Merging Fund of Ankang University for high-level talents [2016AYQDZR05, 2017AYJC01]
- Natural Science Fund of Education Department of Shaanxi Provincial Government [15JK1004]
- Natural Science Basic Research Plan in Shaanxi Province [2014JM2-2012]
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A novel LiMn2O4-graphene flexible film is successfully prepared by facile vacuum filtration technique.LiMn2O4 nanowires with diameters of 50-100 nm are distributed homogeneously on graphene sheet matrix. Used as cathode in rechargeable hybrid aqueous batteries, the LiMn2O4 -graphene film exhibits enhanced electrochemical performance in comparison to LiMn2O4-graphene powder. The LiMn2O4-graphene film shows stable 13.0 mAh g(-1) discharge capacity after 200 cycles at 1.0 C, benefitting from the presence of graphene with strong conductivity and large pore area in this free-standing film. This synthetic strategy for a free-standing film can provide a new avenue for other flexible materials and binder-free electrodes.
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