XANES and EXAFS spectra on the new high voltage Li[Li0.2Mn0.6-0.5xNi0.2-0.5xCox]O2 for lithium batteries have been recorded at the XAFS beamline. The used beam time was successful because the spectra were acquired at the all available metal Kedges (Co, Ni, and Mn) allowing to check main structural and electronic changes. Unlike the commercial material, the proposed cathodes displays a different behaviour: the Mn site in not as much modified during the battery charge, in an in-situ experiment.
X Ray Absorption Spectroscopy Structural studies on high voltage cathode materials of the Li[Li0.2Mn0.6-0.5xNi0.2-0.5xCox]O2 family
GIORGETTI, MARCO
2011
Abstract
XANES and EXAFS spectra on the new high voltage Li[Li0.2Mn0.6-0.5xNi0.2-0.5xCox]O2 for lithium batteries have been recorded at the XAFS beamline. The used beam time was successful because the spectra were acquired at the all available metal Kedges (Co, Ni, and Mn) allowing to check main structural and electronic changes. Unlike the commercial material, the proposed cathodes displays a different behaviour: the Mn site in not as much modified during the battery charge, in an in-situ experiment.File in questo prodotto:
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