화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 기능성 고분자
제목 Fabrication of polypyrrole/Co(OH)2/carbon cloth nanosheet for high performance asymmetric supercapacitor
초록 Co(OH)2 architectures were produced on carbon cloth via electrodeposition at different voltage scan rates (5 to 20 mV s-1) using three electrode system. In addition, polypyrrole (PPy) were coated on Co(OH)2 architectures via vapor phase deposition (VDP) which facilitated uniform and thin coating. Then, solid-state asymmetric supercapacitor was assembled by using PPy coated Co(OH)2/carbon cloth composites (Co(OH)2@PPy) as a positive electrode and activated carbon nanotubes decorated carbon cloth as a negative electrode. Fabricated device was operated in a 1.6 V voltage window and was capable of delivering a high volumetric capacitance of 27.4 F cm-3, energy density of 10.53 mWh cm-3 and power density of 0.53 W cm-3. In addition, the supercapacitor device displayed outstanding cycle stability owing to the PPy coating layer on Co(OH)2 surface.
저자 김우영, 장정식
소속 서울대
키워드 supercapacitor; asymmetric; electrodeposition; VDP
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