Balancing Fast Li-Ion Transport Kinetics and Mechanical Strength in PEO-Based Composite Solid Electrolytes through Minimal Dinitrile Incorporation
Poly(ethylene oxide) (PEO)-based composite solid electrolytes (CSEs) suffer from poor ionic conductivity because strong Li+–ether oxygen coordination restricts Li+ transport. Herein, we develop a competitive coordination strategy by introducing a minimal amount of hexanedinitrile (HDN; 2.30 wt %) into PEO CSEs. Its f...