Precisely controlled supramolecular ionic conduction paths and their structure–conductivity relationships for lithium ion transport

The identification of the key nanostructural features in supramolecules and the understanding of the relationship between structure and function are important factors in the development of novel molecular-based materials. The ionic conduction path is one of the most attractive key structures because of its ability to generate solid-state ionic diffusive properties for application as a solid electrolyte. We herein report the generation of ionic conduction paths using crystallization of supramolecules with a channel structure. We succeeded in precise structural control of the conduction paths by varying the component diamines or lithium salts. We also show the structure–conductivity relationships of the obtained compounds based on a single crystal X-ray diffraction study and electrochemical measurements.