Zn(TFSI)₂-Mediated Ring-Opening Polymerization for Electrolyte Engineering Toward Stable Aqueous Zinc Metal Batteries.

ABSTRACT: Practical Zn metal batteries have been hindered by several challenges, including Zn dendrite growth, undesirable side reactions, and unstable electrode/electrolyte interface. These issues are particularly more serious in low-concentration electrolytes. Herein, we design a Zn salt-mediated electrolyte with in situ ring-opening polymerization of the small molecule organic solvent. The Zn(TFSI)₂ salt catalyzes the ring-opening polymerization of (1,3-dioxolane (DOL)), generating oxidation-resistant and non-combustible long-chain polymer (poly(1,3-dioxolane) (pDOL)). The pDOL reduces the active H₂O molecules in electrolyte and assists in forming stable organic-inorganic gradient solid electrolyte interphase with rich organic constituents, ZnO and ZnF₂. The intro

SUBMITTER: Liu Z 

PROVIDER: S-EPMC11775372 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature