In situ construction of an asymmetric composite electrolyte with structural gradients for dendrite-free lithium metal batteries.

Abstract

Herein, an asymmetric composite electrolyte featuring gradient structures is developed. In the optimized CSE, the synergistic effect between the organic and inorganic components of the electrolyte significantly enhances the interfacial stability. This unique electrolyte with structural gradients not only enables the long-term deployment of SN-based electrolytes in lithium metal batteries, but also marks a significant advancement in the design and application of composite solid-state electrolytes.