Amorphous FeV[O.sub.4] as high-capacity cathode precursor for lithium second battery

Various vanadates have been investigated to accelerate the development of advanced technologies, especially in the area of electronics. Amorphous FeV[U.sub.4] was synthesized by the liquid phase precipitation method. This precursor was firstly discharged and then charged as cathode material of lithi...

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Bibliographic Details
Published inVibroengineering Procedia Vol. 41; pp. 142 - 147
Main Authors Bai, Xiaoyan, Zhao, Yan, Xie, Yanyan, Gao, Yan, Chen, Xiongfei, Chen, Caixia
Format Journal Article
LanguageEnglish
Published JVE International Ltd 01.04.2022
Subjects
Analysis
Batteries
Diffraction
Electric properties
Ferroalloys
X-ray spectroscopy
X-rays
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Summary:Various vanadates have been investigated to accelerate the development of advanced technologies, especially in the area of electronics. Amorphous FeV[U.sub.4] was synthesized by the liquid phase precipitation method. This precursor was firstly discharged and then charged as cathode material of lithium second battery, in which the valence of two kinds of metals can be changed. Thermal analysis (TG-DTA), powder X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) have been used for their characterization. The result revealed the existence of two pairs of redox couples, [Fe.sup.3+]/[Fe.sup.2+] and [V.sup.5+]/[V.sup.4+]. The electrochemical investigation has shown that at higher potentials amorphous FeV[U.sub.4] can react with 1, 1.5 and 2 mol Li, respectively.
ISSN:2345-0533
DOI:10.21595/vp.2022.22454