Energy Storing Electrical Cables: Integrating Energy Storage and Electrical Conduction

A novel device architecture of a coaxial supercapacitor cable that functions both as an electrical cable and an energy-storage device is demonstrated. The inner core is used for electrical conduction and the overlying layers are used for energy storage. This unique design provides excellent flexibility, long and stable cycle lifetimes, and high energy and power densities. All these remarkable results demonstrate a clear technological advance achieved by clubbing electrical conduction and energy storage into a single cable. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.