Abstract
Operando XANES and EXAFS spectra on the newly prepared Fe hexacyanocobaltate active material for positive electrodes in lithium batteries have been recorded at the XAFS beamline of Elettra using a suitable in situ cell. In this way, it was possible to follow in detail the main structural and electronic changes during the charge and discharge processes of the battery. The use of a chemometric approach for data analysis is also underlined.
Highlights
The development of low-cost, efficient storage of off-peak electric power and of electrical energy generated by energy sources other than fossil fuels is a global priority
Metal hexacyanoferrates (Mhcf) represent an interesting class of intercalation materials, with high void space, which can be a viable and low-cost alternative to conventional electrodes based on metal oxides
This paper deals with the study by Xray absorption spectroscopy (XAS) [7] of the modification of the structural and electronic properties of the iron(II) hexacyanocobaltate analogues while used as positive electrode materials for lithium rechargeable battery
Summary
The development of low-cost, efficient storage of off-peak electric power and of electrical energy generated by energy sources other than fossil fuels is a global priority. This paper deals with the study by Xray absorption spectroscopy (XAS) [7] of the modification of the structural and electronic properties of the iron(II) hexacyanocobaltate analogues while used as positive electrode materials for lithium rechargeable battery.
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