Kuok F.-H.Liao C.-Y.Chen C.-W.Hao Y.-C.Yu I.-S.Chen J.-Z.JIAN-ZHANG CHEN2019-09-262019-09-26201720531591https://scholars.lib.ntu.edu.tw/handle/123456789/425290This study investigates a quasi-solid-state gel-electrolyte supercapacitor fabricated with nanoporous SnO 2 /CNT nanocomposite electrodes and a polyvinyl alcohol/sulfuric acid (PVA/H 2 SO 4 ) gel electrolyte. First, pastes containing SnO 2 nanoparticles, CNTs, ethyl cellulose, and terpineol are screen-printed onto carbon cloth. A tube furnace is then used for calcining the SnO 2 /CNT electrodes on carbon cloth. After furnace-calcination, the wettability of SnO 2 /CNT significantly improved; furthermore, the XPS analysis shows that number of C-O bond and oxygen content significantly decrease after furnace-calcination owing to the burnout of the ethyl cellulose by the furnace calcination processes. The furnace-calcined SnO 2 /CNT electrodes sandwich the PVA/H 2 SO 4 gel electrolyte to form a supercapacitor. The fabricated supercapacitor exhibits an areal capacitance of 5.61 mF cm -2 when flat and 5.68 mF cm -2 under bending with a bending radius (R) of 1.0 cm. After a 1000 cycle stability test, the capacitance retention rates of the supercapacitor are 96% and 97% when flat and under bending (R = 1.0 cm), respectively. ? 2017 IOP Publishing Ltd.carbon nanotubenanocompositeSnO 2supercapacitorjournal article10.1088/2053-1591/aa94052-s2.0-85043291098https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85043291098&doi=10.1088%2f2053-1591%2faa9405&partnerID=40&md5=c3c46d3eef15c7c53aa1fcc4baea8d43