Mechano-Electrochemical Synergy in Cellulose@MOF Scaffold-Based Asymmetric Electrolyte for Stable Solid-State Lithium Metal Batteries

Abstract

A structurally simple asymmetric solid-state electrolyte successfully stabilizes the interface between lithium metal and high-voltage cathodes in solid-state lithium metal batteries. Environmentally friendly cellulose provides high mechanical support, while layered self-assembled metal–organic frameworks restrict TFSI⁻, efficiently promoting Li⁺ transport. The assembled pouch cell exhibited a high gravimetric/volume energy density of 337.9 Wh kg−1/711.7 Wh L−1.