화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU))
권호 23권 2호
발표분야 (국제협력위원회) 우수외국인연구자세션
제목 A Dual-phasic Carbon Composite Cathode for Lithium-Oxygen Batteries
초록 Lithium-oxygen batteries have been attracting a lot of interest due to their extremely huge theoretical capacity. Lithium ion from the anode is combined with reduced oxygen and form lithium peroxide (Li2O2) at the cathode during the discharge. Li2O2 is stored there and later convert back to lithium ion and oxygen during the charge. Therefore, the cathode should have large surface area to provide abundant reaction sites and large volume to accommodate as much Li2O2 as possible. It also should be porous for oxygen transport facilitation and good at electric conductivity. Herein, we propose a dual-phasic carbon composite that exploits the synergy between metal-organic frameworks (MOFs) and carbon nanotubes (CNTs). The dual-phasic nanoarchitecture incorporates the advantages of both components: MOF-C provides a large surface area and a large pore volume for Li2O2 storage, and CNTs provide facile pathways for electron and O2 transport as well as additional spaces for Li2O2 storage.
저자 PHAM THI THU HIEN1, 김영수2, 이종원2, 박민식1
소속 1경희대, 2조선대
키워드 Lithium; Oxygen; Battery; Electrochemistry
E-Mail