A Mechanically and Electrically Self‐Healing Supercapacitor

The first mechanically and electrically self-healing supercapacitor has been successfully fabricated. It exhibits excellent self-healing performance with the restoration of the specific capacitance up to 85.7% of its original value even after the 5th mechanical cutting. This achievement may provide a way to expand the lifetime of future energy storage devices and endow them with desirable economic and human safety attributes, as well as promote the development of next-generation self-healing electronics. 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.