화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO))
권호 22권 1호
발표분야 전기화학_포스터
제목 Electrochemical characterization and interfacial analysis of high-voltage electric double layer capacitors employing ionic liquid-based electrolytes
초록 Electric double layer capacitors (EDLCs) have been considered promising energy storage device with high specific power and long cycle life. However, the market for EDLCs is currently limited due to their low energy density. Higher operating voltage of EDLCs is necessary to improve their energy density, however, the high cut-off voltage is limited by the electrochemical stability of the organic electrolytes, which have poor electrochemical stability. In this respect, ionic liquids can be promising electrolytes for high voltage EDLCs because of their superior electrochemical stability. In this study, ionic liquid-based electrolytes were applied to the high voltage EDLCs over a voltage range of 1.0-3.2 V. The surface analysis of electrodes was also carried out to investigate the degradation products due to the irreversible decomposition of the electrolytes.
저자 박명수1, 고혜수1, 강인석2, 김세준2, 김동원1
소속 1한양대, 2LG이노텍
키워드 ionic liquid; electrolyte; EDLCs; surface analysis
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