High performance of stretchable carbon nanotube–polypyrrole fiber supercapacitors under dynamic deformation and temperature variation

Abstract

Fiber-shaped supercapacitors (FSSCs) are fabricated from CNT–PPy composite networks. The FSSCs exhibit outstanding capacitive performance with a high specific capacitance of 69 F g−1. The FSSCs are stable and reliable under static and dynamic stretching, and wide temperature variation.