Fig. 3: Electrochemical investigation and theoretical calculation of PDOL-based electrolytes on oxidative stability.
From: Ion bridging enables high-voltage polyether electrolytes for quasi-solid-state batteries
a Linear sweep voltammetry (LSV) curves of Li||stainless steel cells at a scan rate of 0.1 mV s−1, b XPS C 1s spectra, and c electrochemical floating test results of different PDOL-based electrolytes in Li||NMC83 cells. d The plot of the oxidation potentials of Mn+-PDOL-CTA versus BSSE-corrected binding energy of Mn+···PDOL-CTA clusters. e Tested and calculated Eox of structures with and without TFSI− for different PDOL-based electrolytes. Optimized structures and calculated Eox of f PDOL-TFSI− and g Zn2+-PDOL-CTA-TFSI− clusters with H-transfer. h–j Plots of the reduced density gradient (RDG) versus sign(λ2)ρ for different PDOL-based electrolytes. The RDG plots are colored on a scale from blue, green to red, with the value of sign(λ2)ρ ranging from −0.05 to 0.05 a.u., where red indicates steric repulsion and blue indicates attraction interactions. The intensity of all spectra was shown in arbitrary unit (a.u.).
