Redox-Active Polymers for Energy Storage Nanoarchitectonics

Recently, one of the most important scientific issues for a better future life for humanity is achieving the ability to intelligently harvest, store, and utilize energy with good efficiency because we are facing critical environmental pollution and exhaustion of energy resources. Moreover, dramatic developments in advanced electronics, such as portable and wearable devices and electric vehicles, are being realized. Therefore, energy storage systems (ESSs) are very important for the operation of these advanced electronics. Among the energy storage materials, redox-active polymers are very attractive for ESSs because they have outstanding advantages compared with metal-based energy storage materials. For this reason, redox-active polymers are currently attracting much attention. In this review, we classify the redox-active organic groups of redox-active polymers. In addition, the latest advances in redox-active polymers and their promising application potential for ESSs are discussed with a specific focus on precise molecular designs, nanoarchitectonics, and other new approaches.