Toward Sustainable Li-S Battery Using Scalable Cathode and Safe Glyme-Based Electrolyte.

ABSTRACT: The search for safe electrolytes to promote the application of lithium-sulfur (Li-S) batteries may be supported by the investigation of viscous glyme solvents. Hence, electrolytes using nonflammable tetraethylene glycol dimethyl ether added by lowly viscous 1,3-dioxolane (DOL) are herein thoroughly investigated for sustainable Li-S cells. The electrolytes are characterized by low flammability, a thermal stability of ∼200 °C, ionic conductivity exceeding 10^-3 S cm^-1 at 25 °C, a Li⁺ transference number of ∼0.5, electrochemical stability window from 0 to ∼4.4 V vs Li⁺/Li, and a Li stripping-deposition overpotential of ∼0.02 V. The progressive increase of the DOL content from 5 to 15 wt % raises the activation energy for Li⁺ motion, lowers

SUBMITTER: Marangon V 

PROVIDER: S-EPMC10685327 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature