Please use this identifier to cite or link to this item: https://doi.org/10.1039/b817242k
Title: Storage performance of LiFePO4 nanoplates
Authors: Saravanan, K. 
Reddy, M.V. 
Balaya, P. 
Gong, H. 
Chowdari, B.V.R. 
Vittal, J.J. 
Issue Date: 2009
Source: Saravanan, K., Reddy, M.V., Balaya, P., Gong, H., Chowdari, B.V.R., Vittal, J.J. (2009). Storage performance of LiFePO4 nanoplates. Journal of Materials Chemistry 19 (5) : 605-610. ScholarBank@NUS Repository. https://doi.org/10.1039/b817242k
Abstract: The morphology of electrode materials is addressed as a key factor controlling rapid lithium storage in anisotropic systems such as LiFePO 4. In view of this, we have synthesized nanoplates of LiFePO 4 with a uniform coating of a 5 nm thick amorphous carbon layer by the solvothermal method and investigated their electrochemical storage behavior. The obtained nanoplates are well characterized by XRPD, SEM, HRTEM and XPS techniques. The thickness along the b-axis is found to be 30-40 nm; such a morphology favors short diffusion lengths for Li+ ions, while the external conductive carbon coating provides connectivity for facile electron diffusion, resulting in high rate performances. Increase in the size of the nanoplates results in poor lithium storage performance. The storage performance of nanoplates is compared with that of mesoporous nanoparticles of LiFePO 4 with non-uniform carbon coating. This paper thus describes the advantages of thinner nanoplates for high rate storage performances of battery electrode materials. © 2009 The Royal Society of Chemistry.
Source Title: Journal of Materials Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/85662
ISSN: 09599428
DOI: 10.1039/b817242k
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