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Issue 11, 2013
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Ultrafast charging of LiFePO4 with gaseous oxidants under ambient conditions

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Abstract

Lithium iron phosphate is a lithium-ion battery positive electrode material with widespread use, as well as, unusually complex redox chemistry. Here we report on the discovery of a direct gas–solid delithiation reaction. Unique to this reaction, in addition to the lack of solvent, is remarkably fast kinetics. In situ X-ray diffraction, corroborated by elemental analysis, shows for the first time that LiFePO4 bulk diffusion supports nearly complete delithiation/charging of carbon coated LiFePO4 micropowder at ambient temperature in less than 60 seconds.

Graphical abstract: Ultrafast charging of LiFePO4 with gaseous oxidants under ambient conditions

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Publication details

The article was received on 02 May 2013, accepted on 19 Aug 2013 and first published on 20 Aug 2013


Article type: Edge Article
DOI: 10.1039/C3SC51195B
Citation: Chem. Sci., 2013,4, 4223-4227
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    Ultrafast charging of LiFePO4 with gaseous oxidants under ambient conditions

    C. Kuss, D. Lepage, G. Liang and S. B. Schougaard, Chem. Sci., 2013, 4, 4223
    DOI: 10.1039/C3SC51195B

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