그래핀 기반 고출력 텍스타일 슈퍼커패시터

다국어 초록 (Multilingual Abstract)

We have demonstrated graphene-based textile microsupercapacitors (MSCs) by using thermal transfer printing. In thermal transfer printing, an adhesive film of a heat transfer paper was employed as a flat, buffer adhesive layer on a rough textile substrate. Laser-induced graphene (LIG) directly laser-written on polyimide (PI) films was transferred onto the adhesive film area of the textile substrates at elevated temperature and pressure. A thermally transfer-printed LIG pattern preserved porous structure with 3D interconnected pores and high electrical conductivity of LIG formed on PI films. The developed textile LIG-MSCs exhibit electrical double layer capacitive characteristics with areal capacitance of 0.76mFcm-2 and excellent capacitance retention of 96% after 1000 cycles of large bending (180˚) deformation. Furthermore, LIG-MSCs with a LIG-metal composite exhibit fast ion transport at a high scan rates of up to 20Vs-1, suggesting outstanding rate capability among graphene-based textile MSCs.