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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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Supplementary files

Article information


Submitted
02 May 2013
Accepted
19 Aug 2013
First published
20 Aug 2013

Chem. Sci., 2013,4, 4223-4227
Article type
Edge Article

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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