화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1547
발표분야 에너지 환경 (Energy and Environment)
제목 Computational Study on Organic Semiconductor C60/cHBC Cocrystal for Highly Conductive Lithium Host Electrode
초록 Organic materials have attracted much attention as promising active materials for high-performance lithium-ion battery electrodes due to their low cost, feasibility as a Li+ storage medium, high capability to transport electron, and the designing flexibility with electron-withdrawing/donating groups. Herein, we theoretically investigated an organic cocrystal of semiconducting fullerene (C60) and contorted hexabenzocoronene (cHBC) as a conducting agent-free organic cocrystal anode material. The crystal structure of C60/cHBC cocrystal was predicted through Monte Carlo (MC) simulation, which provided the information of the minimum-energy crystal structure from molecular structure. By performing density functional theory calculation in combination with the MC simulation, the Li storage mechanism of C60/cHBC cocrystal was  found through exploring the Li+ adsorption sites and calculating the formation energy of Li-intercalated compounds. Finally, calculated voltage profile agreed well with the experimental result.
저자 주세훈1, 박주현1, 박재현1, 김윤정2, 안석훈2, 강석주1, 곽상규1
소속 1울산과학기술원, 2KIST
키워드 에너지 환경
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