VOPO4·2H2O as a new cathode material for rechargeable Ca-ion batteries

VOPO4·2H2O, as a new cathode material for Ca-ion batteries, exhibits a discharge capacity of 100.6 mA h g−1, excellent cycling stability (200 cycles) and good rate performance (42.7 mA h g−1 at 200 mA g−1). In situ X-ray diffraction and in situ Raman results demonstrate the calcium-ion-storage mecha...

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Published inChemical communications (Cambridge, England) Vol. 56; no. 26; pp. 3805 - 3808
Main Authors Wang, Junjun, Tan, Shuangshuang, Xiong, Fangyu, Yu, Ruohan, Wu, Peijie, Cui, Lianmeng, An, Qinyou
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 04.04.2020
Subjects
Calcium ions
Cathodes
Electrode materials
Rechargeable batteries
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Summary:VOPO4·2H2O, as a new cathode material for Ca-ion batteries, exhibits a discharge capacity of 100.6 mA h g−1, excellent cycling stability (200 cycles) and good rate performance (42.7 mA h g−1 at 200 mA g−1). In situ X-ray diffraction and in situ Raman results demonstrate the calcium-ion-storage mechanism of VOPO4·2H2O is a single-phase reaction based on asymmetric Ca2+ insertion and deinsertion.
Bibliography:ObjectType-Article-1
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ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc00772b