Initiator loaded separator triggering in-situ polymerization of poly(1,3-dioxolane) quasi-solid electrolyte for lithium metal batteries

Aluminum trifluoromethanesulfonate (Al(OTf) 3 ) is preloaded on a separator sheet as the initiator to trigger the ring-opening reaction of 1,3-dioxolane (DOL), leading to a higher crystallization degree for polymer matrix near the separator.