An ionic-liquid functionalized metal-organic framework and its high performance as a solid electrolyte for lithium-ion conduction.

Crystalline porous metal-organic frameworks (MOFs) have attracted great interest, including in the field of solid-state electrolytes. Herein, we report a new type of solid-state electrolyte based on an MOF matrix and a Li ionic liquid. By covalently bonding the Li ionic liquid (MIMS·LiTFSI) on the stable UiO-67 framework, the obtained crystalline IL-MOF material exhibited high ion conductivities within a wide temperature range (30 °C 1.