Stretchable, weavable coiled carbon nanotube/MnO2/polymer fiber solid-state supercapacitors.

ABSTRACT: Fiber and yarn supercapacitors that are elastomerically deformable without performance loss are sought for such applications as power sources for wearable electronics, micro-devices, and implantable medical devices. Previously reported yarn and fiber supercapacitors are expensive to fabricate, difficult to upscale, or non-stretchable, which limits possible use. The elastomeric electrodes of the present solid-state supercapacitors are made by using giant inserted twist to coil a nylon sewing thread that is helically wrapped with a carbon nanotube sheet, and then electrochemically depositing pseudocapacitive MnO2 nanofibers. These solid-state supercapacitors decrease capacitance by less than 15% when reversibly stretched by 150% in the fiber direction, and largely retain capacitance while be

SUBMITTER: Choi C 

PROVIDER: S-EPMC4369743 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature