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Self-Assembly of Free-Standing LiMn2O4-Graphene Flexible Film for High-Performance Rechargeable Hybrid Aqueous Battery

1
Department of Chemistry and Chemical Engineering, Research Centre of New Materials, Ankang University, Ankang 725000, China
2
Synergy Innovation Institute of GDUT, Heyuan 517000, China
*
Authors to whom correspondence should be addressed.
Materials 2018, 11(7), 1056; https://doi.org/10.3390/ma11071056
Received: 8 May 2018 / Revised: 13 June 2018 / Accepted: 13 June 2018 / Published: 21 June 2018
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Abstract

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. View Full-Text
Keywords: LiMn2O4-graphene; flexible film; rechargeable hybrid aqueous batteries; electrochemical performance LiMn2O4-graphene; flexible film; rechargeable hybrid aqueous batteries; electrochemical performance
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Yuan, G.; Huang, T.; Kou, Y.; Ji, Z.; Zhao, Y. Self-Assembly of Free-Standing LiMn2O4-Graphene Flexible Film for High-Performance Rechargeable Hybrid Aqueous Battery. Materials 2018, 11, 1056.

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