Superionic polymer electrolytes with tailored intermolecular interactions
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Charged polymers are promising materials for next-generation battery technologies and soft electronics. Key factors in this research area are the type of ionic additive and coulombic interactions between ions and polymer functional groups. By understanding these interrelated factors, conductive and robust polymer electrolytes can be prepared. In this talk, I would like to introduce the latest results of our groups on acid-tethered polymers by focusing on the design and synthesis of bifunctional polymers. Through the introduction of two types of functional moieties to precise positions of polymer backbones, ion distribution at distances of several angstroms, ion aggregation at several nanometers, and microphase separation at a few tens of nanometers could be modulated. Computational and experimental analyses have provided insights into how to improve the ionic conductivity across multiscale self-assembled structures of bifunctional polymer electrolytes without compromising mechanical strength, which is crucial for practical applications.