Quasi-solid-state highly stretchable circular knitted MnO@CNT supercapacitor.

Flexible and stretchable fiber supercapacitors have been progressively improved for wearable electronic devices. However, they should be further improved with respect to stretchable range and stable electrochemical performance during dynamic movement when considering the tensile range for wearable applications. Here, we report a quasi-solid-state circular knitted MnO@CNT supercapacitor with high tensile range.