Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28469
Title: Morphology-controlled synthesis of self-assembled LiFePO4/C/RGO for high-performance Li-ion batteries
Authors: Lin, M
Chen, Y
Chen, B
Wu, X
Kam, K
Lu, W
Chan, HLW 
Yuan, J 
Keywords: hydrothermal
Li-ion batteries
LiFePO4
reduced graphene oxide
self-assembled
Issue Date: 2014
Publisher: American Chemical Society
Source: ACS applied materials and interfaces, 2014, v. 6, no. 20, p. 17556-17563 How to cite?
Journal: ACS applied materials and interfaces 
Abstract: Novel architectured LiFePO4 (LFP) that consisted of ordered LFP nanocubes was prepared through a facile hydrothermal method using polyethylene glycol (PEG) as a surfactant. The micro/nanostructured LFP with various morphologies ranging from cube cluster to rugby-like structure was synthesized via controlling the pH values of the precursor. A reasonable assembly process elucidating the formation of the hierarchical structure is also provided based on the experimental results. After a combination of carbon (C) coating and reduced graphene oxide (RGO) wrapping, the obtained LFP/C/RGO composites exhibit enhanced electrochemical performance compared to that of blank LFP synthesized under the same condition. Among as-synthesized cube-cluster-like, dumbbell-like, rod-like, and rugby-like composites, the rugby-like LFP/C/RGO reveal the best electrochemical properties with the discharge specific capacity of ∼150 mA h g-1 after 100 cycles and a high reversible specific capacity of 152 mA h g-1 at 0.1 C. The prepared LFP/C/RGO composite can be a promising cathode material for high energy, low cost, and environmentally friendly lithium-ion batteries.
URI: http://hdl.handle.net/10397/28469
ISSN: 1944-8244
EISSN: 1944-8252
DOI: 10.1021/am503346e
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