Dual-Ionic Weakly Solvating Electrolyte Design Enables Efficient Fast-Cycling of High-Voltage Anion Shuttle Batteries.

ABSTRACT: Electrolytes shape solvation structures that govern ionic transport, stability, and interfacial properties in energy storage systems. Sodium-based dual-ion shuttling systems offer high-voltage and fast-charging potential but face challenges such as solvent co-intercalation, electrolyte decomposition, and low Coulombic efficiency, partly due to limited anion-focused electrolyte design. Herein, a low-concentration dual-ionic weakly solvating electrolyte (DWSE) is introduced, leveraging functionalized nano-graphene oxide additives to modulate the solvation environments of Na⁺ and PF₆ ^-. While a conventional cationic weakly solvating electrolyte (CWSE) enhances Na⁺ transport, DWSE simultaneously addresses anion and cation transport for a more balance

SUBMITTER: Kang J 

PROVIDER: S-EPMC12533411 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature