Structural and electronic studies of metal hexacyanoferrates based cathodes for Li rechargeable batteries

16th International Conference on X-ray Absorption Fine Structure

Giorgetti, Marco^1 ; Mignani, Adriana^1 ; Aquilanti, Giuliana^2 ; Conti, Paolo^3 ; Fehse, Marcus^4 ; Stievano, Lorenzo^4

Department of Industrial Chemistry, University of Bologna, Bologna

40136, Italy^1

Elettra - Sincrotrone Trieste S.C.p.A., s.s 14 km 163.5, Basovizza, Trieste

39149, Italy^2

School of Science and Technology, Chemistry Division, University of Camerino, Camerino

62032, Italy^3

ICGM (UMR 5253), AIME Université Montpellier, Montpellier

34095, France^4

关键词: Active material;    Charge and discharge;    Chemometric approach;    Electronic changes;    Electronic studies;    Hexacyanoferrates;    Li rechargeable batteries;    Positive electrodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012127/pdf
DOI  :  10.1088/1742-6596/712/1/012127

来源: IOP

【 摘 要 】

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.