Stretchable supercapacitors

This chapter focuses on the recent progress in stretchable supercapacitors (SCs) and their potential application in wearable electronics. Viewed from device dimension, SCs have three main categories, 1 D fiber SCs, 2D planar, and 3D SCs. The chapter presents the main approaches to assemble stretchable SCs consist of both 1D fiber and 2D planar devices, and describes the main electrochemical and mechanical performances in the field of the stretchable SCs. It highlights the multifunctional SCs such as self-healable SCs, compressible SCs and the self-powered integrated system. Many attempts have been made to incorporate such functions into stretchable energy storage. More low-cost fabrication technology for large scale production of stretchable SCs should be introduced to meet the requirement of the practical application. From the angle of actual application, the large-scale production of stretchable SCs with low cost also should be considered.