Pearl-Structure-Enhanced NASICON Cathode toward Ultrastable Sodium-Ion Batteries.

ABSTRACT: Based on the favorable ionic conductivity and structural stability, sodium superionic conductor (NASICON) materials especially utilizing multivalent redox reaction of vanadium are one of the most promising cathodes in sodium-ion batteries (SIBs). To further boost their application in large-scale energy storage production, a rational strategy is to tailor vanadium with earth-abundant and cheap elements (such as Fe, Mn), reducing the cost and toxicity of vanadium-based NASICON materials. Here, the Na_3.05 V_1.03 Fe_0.97 (PO₄ )₃ (NVFP) is synthesized with highly conductive Ketjen Black (KB) by ball-milling assisted sol-gel method. The pearl-like KB branch chains encircle the NVFP (p-NVFP), the segregated particles possess promoted overall co

SUBMITTER: Zhao XX 

PROVIDER: S-EPMC10323620 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature