POS6-0884
In-Situ Crosslinked Quasi-Solid-State Electrolytes with Molecular Weight-Controlled Networks for High-Performance Lithium Metal Batteries
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
HYUNJUN JOO (Sungkyunkwan University)
Co-Author(s)
Abstract
Poly(1,3-dioxolane) (PDOL)-based quasi-solid-state electrolytes synthesized via in-situ polymerization have emerged as promising candidates for lithium metal batteries due to their favorable ionic transport properties. However, their application and cycling durability are limited by poor mechanical stability. In this work, we introduce poly(ethylene glycol) diglycidyl ether (PEGDE) as a crosslinker; its polyether backbone promotes lithium-ion coordination and diglycidyl groups enable uniform crosslinking with PDOL via in-situ ring-opening polymerization to build a 3D polymer network. By employing PEGDE crosslinkers of various molecular weights, we systematically compare ion transport behavior while maintaining similar crosslink density. The optimized crosslinked structure successfully suppresses lithium dendrite growth and boosts electrochemical stability, demonstrating that molecular weight-controlled in situ crosslinking is a promising strategy for stable lithium metal batteries.
