High power Na₃V₂(PO₄)₃ symmetric full cell for sodium-ion batteries.

ABSTRACT: Sodium-ion batteries (SIBs) are a viable substitute for lithium-ion batteries due to the low cost and wide availability of sodium. However, practical applications require the development of fast charging sodium-ion-based full-cells with high power densities. Na₃V₂(PO₄)₃ (NVP) is a bipolar material with excellent characteristics as both a cathode and an anode material in SIBs. Designing symmetric cells with NVP results in a single voltage plateau with significant specific capacity which is ideal for a full cell. Here we demonstrate for the first time a tremendous improvement in the performance of NVP symmetric full cells by introducing an ether-based electrolyte which favors fast reaction kinetics. In a symmetric full cell configuration, 75.5% of

SUBMITTER: Sadan MK 

PROVIDER: S-EPMC9419746 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature