Medium-Entropy Engineering Enhances Na⁺/Electron Transport in Na<sub>3</sub>Fe<sub>0.1</sub>Mn<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.3</sub>V<sub>1.2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>3</sub>@CNTs Cathode for Sodium-Ion Batteries.
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ABSTRACT: Sodium vanadium fluorophosphate (Na3V2(PO4)2F3, NVPF), a promising cathode material for sodium-ion batteries, exhibits high energy density and a stable voltage plateau, yet its practical application is hindered by intrinsic low electronic conductivity. Here, a medium-entropy engineering strategy is introduced to address this limitation by developing a novel Na3Fe0.1Mn0.2Co0.2Ni0.3V1.2(PO4)2F3@CNTs (ME-NV1.2PF@CNTs) composite. The medium-entropy design synergistically optimizes structural stability and charge transport kinetics, while carbon nanotubes (CNTs) coating enhances surface conductivity. Systematic investigation reveals
SUBMITTER: Yang J
PROVIDER: S-EPMC12667550 | biostudies-literature | 2025 Nov
REPOSITORIES: biostudies-literature
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