Nanostructured materials for electrochromic energy storage systems

Over the last few decades, there has been a lot of focus on the development of electrochromic energy storage system (EESS) integrated technology, and numerous developments have taken place due to its reliable performance. It is an emerging and exciting field of research, which is making a significant contribution to the advancement of technology by embedding two different technologies in a single device for a wide range of applications. Meanwhile, overcoming barriers related to the development of EESSs and the goal of reliable efficiency has motivated new developments in energy storage systems (ESSs). Nowadays, a very important goal in research is to make daily life more comfortable by creating more convenient, excellent, and portable devices by incorporating greater functionality into energy-saving materials. To date, EESSs with many features such as high flexibility, stretchability, self-healing, photo-response, and self-charging have been extensively explored. With all the additional functionalities, they can be used in the advancement of various devices, such as in wearable electronics, as a power source for other small electronic devices, in smart electrochromic window (ECW) construction, in information display systems, etc. The development of multifunctional ESSs is required due to new objectives and high energy demand in line with existing and future energy-related requirements, and therefore, their research and development is always ongoing with excellent efforts. However, the active electrode materials studied so far and the various assembly techniques used for them need to be systematically reviewed so that they can be used for further study to develop more efficient EESSs. This report will give a brief overview of the existing literature along with performance statistics on the literature published so far in this field. This review highlights the recent progress in electrochromic energy storage (EES) systems. EES bifunctional devices can be incorporated with characteristics such as flexibility, stretchability, self-healing properties, etc. making them convenient for everyday applications.