POS5-1118
Highly stretchable microsupercapacitor achieved with Porous Nanocomposite Electrodes and Zwitterionic Ionogels
Topic
S5. Polymers for Electronics and Photonics
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Hyowon Lee (University of Seoul)
Co-Author(s)
Abstract
Highly stretchable microsupercapacitors (MSCs) have emerged as promising energy-storage devices for wearable and deformable electronics. However, achieving high electrochemical performance and stretchability remains a significant challenge. In this work, we present an intrinsically stretchable MSC based on a CNT/MnO/PEDOT nanocomposite electrode and a highly conductive zwitterionic ionogel electrolyte. The electrode was fabricated via direct ink writing followed by phosphoric acid treatment, which generated manganese phosphate nanoneedles and increased electrode porosity. The electrolyte provided high ionic conductivity, strong interfacial adhesion and excellent mechanical durability. The resulting MSC delivered a high areal capacitance of 304.2mFcm-2 while maintaining intrinsic stretchability up to 300%. Furthermore, the device preserved 95.7% of its capacitance after 10,000 charge-discharge cycles, demonstrating its potential for wearable energy-storage systems applications.
