In Situ Atomic-Scale Investigation of Structural Evolution During Sodiation/Desodiation Processes in Na₃ V₂ (PO₄ )₃ -Based All-Solid-State Sodium Batteries.

ABSTRACT: Recently, all-solid-state sodium batteries (Na-ASSBs) have received increased interest owing to their high safety and potential of high energy density. The potential of Na-ASSBs based on sodium superionic conductor (NASICON)-structured Na₃ V₂ (PO₄ )₃ (Na₃ VP) cathodes have been proven by their high capacity and a long cycling stability closely related to the microstructural evolution. However, the detailed kinetics of the electrochemical processes in the cathodes is still unclear. In this work, the sodiation/desodiation process of Na₃ VP is first investigated using in situ high-resolution transmission electron microscopy (HRTEM). The intermediate Na₂ V₂ (PO₄ )₃ (Na₂ VP)

SUBMITTER: Shen FC 

PROVIDER: S-EPMC10646283 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature