Synergetic impact of high-entropy microdoping modification in Na 3 V 2 (PO 4 ) 3

High entropy polyanionic Na V (Ca,Mg,Cr,Ti,Mn) (PO ) was synthesized, which activated a reversible redox reaction of V /V and reached a remarkable capacity of 116 mA h g at 1C and maintained 90% capacity retention after 1000 cycles at 10C. Structure evolution and sodium storage mechanisms were revea...

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Published inChemical communications (Cambridge, England) Vol. 60; no. 18; pp. 2512 - 2515
Main Authors Kang, Yahao, Lin, Xitao, Tong, Shuai, Zhu, Wenlong, Wang, Yang, Jia, Min, Zhang, Xiaoyu
Format Journal Article
LanguageEnglish
Published England 27.02.2024
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Summary:High entropy polyanionic Na V (Ca,Mg,Cr,Ti,Mn) (PO ) was synthesized, which activated a reversible redox reaction of V /V and reached a remarkable capacity of 116 mA h g at 1C and maintained 90% capacity retention after 1000 cycles at 10C. Structure evolution and sodium storage mechanisms were revealed by an XRD method, which disclosed the high-entropy effect of material design. Together with the full battery tests, these findings promote the wide applications of high-entropy polyanionic cathodes in SIBs.
ISSN:1359-7345
1364-548X
DOI:10.1039/D4CC00033A