Synergistic effect of MOF fillers and succinonitrile in PEO-based electrolytes for long-cycle all-solid-state Li–CO 2 batteries

A PEO-based solid-state electrolyte fabricated via solution casting exhibits significantly enhanced ion transport due to the synergistic effect of ZIF-8 and succinonitrile, enabling stable cycling of Li–CO 2 batteries over 1600 hours at 200 mA g −1 .