Synergetic impact of high-entropy microdoping modification in Na3V2(PO4)3

High entropy Na 3 V 1.9 (Ca,Mg,Cr,Ti,Mn) 0.1 (PO 4 ) 3 doped with a trace amount of polyanions was successfully synthesized, which exhibited excellent electrochemical performance even at a 10C rate. A V 4+ /V 5+ redox reaction was also achieved, which promoted the commercial application.