화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 포스터-전기화학
제목 Long-stable cycle life Li-S batteries realized through ultralight catalytic hybrid aerofilm interlayer
초록 Currently, lithium-sulfurbatteries that can store high-capacity energy have the limitations of poorcycle life and self-discharge due to polysulfide dissolution. Here, we report astrategy that utilizes an ultra-light aerofilm membrane that can effectivelysuppress polysulfides and selectively control ion transport. The hybridaerofilm interlayer for lithium-sulfur batteries showed a high dischargecapacity of 1189 mAh g -1 at the end of the 500th cycle, with a capacityretention rate of 92.3% or higher. This is an improvement of 671% compared tosulfur batteries with NO interlayer, and the aero film interlayer provides Liresin growth suppression and self-discharge prevention to maintain the cyclelife and safety of the device. This study presents a future-oriented strategyfor the development of ultra-lightweight, high-power Li-S batteries.



저자 김선식, 정현영
소속 경상국립대
키워드 Li-Sulfur battery; Aerofilm; Hybrid interlayer; Polysulfide; Selective ion transport
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