A fundamental study on carbon composites of FeF3·0.33H2O as open-framework cathode materials for calcium-ion batteries

Carbon composites of open-framework iron fluoride (FeF3·0.33H2O/C) was investigated as a new cathode material for calcium ion batteries for the first time. FeF3·0.33H2O/C delivers a relatively large capacity of ca. 110mAhg-1. Its reversible capacity was greatly improved over non-composite FeF3·0.33H...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Murata, Yoshiaki, Minami, Ryoji, Takada, Shoki, Aoyanagi, Kengo, Tojo, Tomohiro, Inada, Ryoji, Sakurai, Yoji
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Batteries Calcium ions Cathodes Composite materials Discharge Electrode materials Energy dispersive X ray spectroscopy Iron Metal fluorides Spectroscopic analysis Spectrum analysis X ray photoelectron spectroscopy X ray spectra
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Carbon composites of open-framework iron fluoride (FeF3·0.33H2O/C) was investigated as a new cathode material for calcium ion batteries for the first time. FeF3·0.33H2O/C delivers a relatively large capacity of ca. 110mAhg-1. Its reversible capacity was greatly improved over non-composite FeF3·0.33H2O. During the first discharge and discharge-charge, insertion/extraction of Ca2+ into/from FeF3·0.33H2O/C were confirmed by an ex-situ X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDX) analysis. From the ex-situ analysis results, it was confirmed that Ca2+ was inserted and extracted with redox of Fe.
ISSN:	0094-243X 1551-7616
DOI:	10.1063/1.4974787