Self-Assembly of Free-Standing LiMn(2)O(4)-Graphene Flexible Film for High-Performance Rechargeable Hybrid Aqueous Battery

A novel LiMn(2)O(4)-graphene flexible film is successfully prepared by facile vacuum filtration technique. LiMn(2)O(4) nanowires with diameters of 50–100 nm are distributed homogeneously on graphene sheet matrix. Used as cathode in rechargeable hybrid aqueous batteries, the LiMn(2)O(4)-graphene film...

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Detalles Bibliográficos
Autores principales: Yuan, Guanghui, Huang, Ting, Kou, Ying, Ji, Zhen, Zhao, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6073348/
https://www.ncbi.nlm.nih.gov/pubmed/29933609
http://dx.doi.org/10.3390/ma11071056
Descripción
Sumario:A novel LiMn(2)O(4)-graphene flexible film is successfully prepared by facile vacuum filtration technique. LiMn(2)O(4) nanowires with diameters of 50–100 nm are distributed homogeneously on graphene sheet matrix. Used as cathode in rechargeable hybrid aqueous batteries, the LiMn(2)O(4)-graphene film exhibits enhanced electrochemical performance in comparison to LiMn(2)O(4)-graphene powder. The LiMn(2)O(4)-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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