Textile-like electrodes of seamless graphene/nanotubes for wearable and stretchable supercapacitors

Abstract

Graphene and carbon nanotubes have been widely used as electrode materials for flexible and wearable supercapacitors due to their excellent properties. Here, we report a kind of novel woven textile electrodes of seamlessly connected graphene/nanotube hybrids for application in wearable and stretchable energy storage. Owing to the support effect of carbon nanotubes seamlessly grown around graphene tubes, the graphene/nanotube hybrids in the textiles could maintain a unique self-supported tubular structure, which provides a perfect platform to be functionalized on both inner and outer surfaces of the tube. Benefiting from its unique structure and properties, the graphene/nanotube hybrids derived all-solid-state supercapacitors not only show high electrochemical performance, but also exhibit superior stretchability of 200% and high optical transmittance of 46%. The novel woven fabrics of seamless graphene/nanotubes are promising to be extended for other wearable electronic applications.