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Title: Morphology controlled synthesis of LiFePO4/C nanoplates for Li-ion batteries
Authors: Saravanan, K. 
Balaya, P. 
Reddy, M.V. 
Chowdari, B.V.R. 
Vittal, J.J. 
Issue Date: 2010
Citation: Saravanan, K., Balaya, P., Reddy, M.V., Chowdari, B.V.R., Vittal, J.J. (2010). Morphology controlled synthesis of LiFePO4/C nanoplates for Li-ion batteries. Energy and Environmental Science 3 (4) : 457-464. ScholarBank@NUS Repository.
Abstract: Lithium iron phosphate, LiFePO4 (LFP), is considered to be a potential cathode material for lithium-ion batteries but its rate performance is significantly restricted by sluggish kinetics of electrons and lithium ions. A simple solvothermal method has been described in this article to synthesize carbon coated LFP (LFP/C) nanoplates with varying thickness from 20 to 500 nm by using different iron precursors. The influence of solvents on the morphology of the LFP in the solvothermal synthesis is also investigated. A uniform carbon coverage at the surfaces has been achieved by a selective chelating carbonising source, d-gluconic acid lactone. The smallest dimension of the nanoplates has been found to be the b-axis where the Li+ ion diffuses quickly. The overall capacity and rate performance have, in general, been found to increase with the decrease of thickness of the nanoplates. Hierarchical LFP/C with ∼30 nm thickness shows the best electrochemical performance of 167 mA h g-1, followed by spindle (
Source Title: Energy and Environmental Science
ISSN: 17545692
DOI: 10.1039/b923576k
Appears in Collections:Staff Publications

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