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Mild and cost-effective synthesis of iron fluoride-graphene nanocomposites for high-rate Li-ion battery cathodes

Liu, Jun, Wan, Yanling, Liu, Wei, Ma, Zengsheng, Ji, Shaomin, Wang, Jinbing, Zhou, Yichun, Hodgson, Peter and Li, Yuncang 2013, Mild and cost-effective synthesis of iron fluoride-graphene nanocomposites for high-rate Li-ion battery cathodes, Journal of materials chemistry A, vol. 1, no. 6, pp. 1969-1975, doi: 10.1039/c2ta00823h.

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Title Mild and cost-effective synthesis of iron fluoride-graphene nanocomposites for high-rate Li-ion battery cathodes
Author(s) Liu, Jun
Wan, Yanling
Liu, Wei
Ma, Zengsheng
Ji, Shaomin
Wang, Jinbing
Zhou, Yichun
Hodgson, Peter
Li, Yuncang
Journal name Journal of materials chemistry A
Volume number 1
Issue number 6
Start page 1969
End page 1975
Total pages 7
Publisher RSC Publications
Place of publication Cambridge, England
Publication date 2013
ISSN 2050-7488
Summary Exploring high performance cathode materials is essential to realize the adoption of Li-ion batteries for application in electric vehicles and hybrid electric vehicles. FeF3, as a typical iron-based fluoride, has been attracting considerable interest due to both the high electromotive force value of 2.7 V and the high theoretical capacity of 237 mA h g_1 (1e_ transfer). In this study, we report a facile lowtemperature solution phase approach for synthesis of uniform iron fluoride nanocrystals on reduced graphene sheets stably suspended in ethanol solution. The resulting hybrid of iron fluoride nanocrystals and graphene sheets showed high specific capacity and high rate performance for iron fluoride type cathode materials. High stable specific capacity of about 210 mA h g_1 at a current density of 0.2 C was achieved, which is much higher than that of LiFePO4 cathode material. Notably, these iron fluoride/ nanocomposite cathode materials demonstrated superior rate capability, with discharge capacities of 176, 145 and 113 mA h g_1 at 1, 2 and 5 C, respectively.
Language eng
DOI 10.1039/c2ta00823h
Field of Research 091305 Energy Generation, Conversion and Storage Engineering
030304 Physical Chemistry of Materials
030306 Synthesis of Materials
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30053626

Document type: Journal Article
Collection: Institute for Frontier Materials
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