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제127회 대한화학회 학술발표회 및 총회 Designing Organic Electrode Materials for Ultra-stable and Fast Rechargeable Batteries

등록일
2021년 2월 18일 11시 25분 28초
접수번호
0715
발표코드
ELEC1-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 13시 : 35분
발표형식
심포지엄
발표분야
Electrochemistry - New Horizons for Molecular Electrochemistry and Its Applications
저자 및
공동저자
Ji Eon Kwon*, Soo young Park1,*
Functional Composite Materials Research Center, Korea Institute of Science and Technology, Korea
1Division of Material Engineering, Seoul National University, Korea
With the rapidly increasing demand for batteries as a reliable power source in many different emerging applications, organic electrode materials are drawing much attention as a promising alternative with sustainability and bio-compatibility. Since the first report in 1969, many organic materials showing redox-activity have been studied as electrode materials for various metal-ion batteries. However, their electrochemical performance is still impractical due to intermediate redox potential, high solubility in the electrolyte, and low electric conductivity. In this talk, we present novel p-type redox centers for high-voltage cathode materials with high rate capability. It is revealed that negligible structural reorganization of the redox centers facilitates a kinetically faster electrochemical pathway, leading to a narrow voltage plateau and superior rate capability of the new cathode materials. Finally, we also discuss our more recent results to further improve their cycle stability and specific capacity.

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