A Solvent-Free Covalent Organic Framework Single-Ion Conductor Based on Ion–Dipole Interaction for All-Solid-State Lithium Organic Batteries

Abstract

Highlights 1. A class of solvent-free covalent organic framework (COF) single-ion conductors (Li-COF@P) has been designed via ion–dipole interaction as opposed to traditional ion–ion interaction, promoting ion dissociation and Li+ migration through directional ionic channels. 2. The Li-COF@P enabled long cycle life (88.3% after 2000 cycles) in all-solid-state Li organic batteries (ASSLOBs) under ambient operating conditions, which outperformed those of previously reported ASSOLBs. 3. This Li-COF@P strategy holds promise as a viable alternative to the currently prevalent inorganic solid electrolytes.

Keywords

• Solid organic single-ion conductors
• Solvent-free covalent organic frameworks
• All-solid-state Li organic batteries
• Ion–dipole interaction
• Pore functionalization