Composite Solid Electrolytes with High Contents of Ceramics

The all-solid secondary lithium batteries are characteristic of high energy density and high safety. Combining the high flexibility of the polymer electrolytes and the high mechanical strength and high Li-ion transference number of the ceramic electrolytes. the ceramic-polymer composite solid electrolytes with high ceramic contents (HCC) are expected to find applications prior to the other solid electrolytes in the all-solid secondary lithium batteries. Following a brief introduction on the composite solid electrolytes. the recent advances of the HCC ceramic-polymer composite electrolyte are reviewed in the general performances of the composite electrolytes. the fabrications of their membranes. the ceramic-polymer interfacial interactions and the resultant new ionic transport mechanisms. At the end of this review. we prospect the fundamental and applicable issues that the HCC composite electrolytes have to meet and propose the future research directions and possible solutions to these questions. We wish that this review could be of help for the R&D of the composite solid electrolytes of other ions as well.