Title :
Characterization of mixtures of sodium iron (II)/iron (III) phosphate as cathodes for sodium batteries
Author :
Prosini, P.P. ; Masci, A. ; Cento, C. ; Carewska, M.
Author_Institution :
Tech. Unit for Renewable Energy Sources (UTRINN), ENEA Casaccia Res. Centre, Rome, Italy
Abstract :
Sodium iron (II) phosphate/iron (III) phosphate mixtures with different Fe(II)/Fe(III) ratio were synthesized. X-ray diffraction, scanning electron micrographs, and thermal analysis were employed to characterize the samples. The electrochemical properties of electrodes prepared by using the samples as the active material were evaluated in lithium cells. One of the samples was electrochemical tested in sodium cells. The cell cyclability was evaluated as a function of the discharge rate. The values of capacity and voltage were employed for the calculation of the specific discharge energy and power.
Keywords :
X-ray diffraction; electrochemical electrodes; iron compounds; secondary cells; sodium compounds; thermal analysis; NaFe-FePO4; X-ray diffraction; lithium cells; scanning electron micrographs; sodium battery cathodes; sodium iron-iron phosphate; thermal analysis; Batteries; Discharges (electric); Electrodes; Heating; Iron; Lithium; X-ray scattering; X-ray diffraction; differential scanning calorimetry; electrochemistry; electron microscopy; energy storage; lithium battery; nanomaterials; sol-gel chemistry;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2015 IEEE 15th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4799-7992-9
DOI :
10.1109/EEEIC.2015.7165251
