Prospects of Alkali Metal-Se Batteries and Beyond: From Redox Mechanisms to Electrode Design.

Conversely, the Raman signals of solvated DEGDME showed an increasing trend, indicating that at higher salt concentrations (≥3 M), the solvent molecules were coordinating with K + ions, rendering them less available for the PSes shuttle effect. 75 Although the viscosity of the electrolyte increased with higher salt concentrations, leading to reduced ionic conductivity, K + ions maintained rapid migration even at 5 M KTFSI, Figure 3 a.

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