Intelligent ion gels: Design, performance, and applications

Abstract Intelligent ion gels, which possess highly tunable mechanical, electrical, and stimulus‐responsive properties, have emerged as powerful candidates in the field of artificial intelligence, telemedicine, and health monitoring. To enrich the functionality of ion gels, it is critical to explore the link between the structure and function of ion gels. In this review, we provide an overview of the synthesis path and functional derivatives of ion gels. The conformational relationships of ion gels have been discussed, such as the effect of structure on electrical conductivity as well as sensing properties. From the perspective of stimulus response, the role of ion gels in areas such as bionic haptics, neural devices, artificial muscles, and intelligent displays has also been explored. It is possible that smart ion gels will open up a new horizon in the upcoming smart era, especially after the current challenges are resolved.