Abstract
Epoxy based adhesive polymer electrolyte was prepared using polyvinylidene fluoride (PVDF), lithium trifluoromethanesulfonate (LiTFS), and epoxy. The ionic conductivity can reach the magnitude of 10(-2) S cm(-1). All-solid-state structural supercapacitor with K3Fe(CN)(6)/K4Fe(CN)(6) mediators was fabricated. Electrochemical tests and mechanical tests were conducted on the structural supercapacitor. The specific energy is 1-5 Wh kg(-1) while the specific power is 9-0.03 kW kg(-1). The stress-strain curves show typical mechanical behavior of fiber-reinforced polymer composite materials. The structural supercapacitor stacks fabricated using carbon cloth have higher toughness than the structural supercapacitor stacks fabricated using carbon paper.