Integrated flexible solid-state supercapacitor fabricated in a single fabric layer

Smart sensor nodes powered by energy harvesting in wearable electronics applications typically require electrochemical energy storage device such as supercapacitors to buffer the electrical energy. Multilayer flexible supercapacitors have previously been realised with inexpensive fabric electrodes, charge separator and electrolyte solution in a sandwich structure. This poster presents details of the design, fabrication and characterisation of a solid-state flexible fabric supercapacitors in single layer of cotton fabric. This work demonstrates for the first time a solid-state electric double layer supercapacitor can be realised in only one layer of cotton fabric using various inexpensive commercial non-hazardous materials.