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제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Electrochemical Performance of Transition metal-coated Carbon Nanofibers as Anode Materials for Lithium Secondary Batteries

등록일
2016년 8월 24일 10시 00분 01초
접수번호
3013
발표코드
ANAL1.O-20 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 10시 : 44분
발표형식
구두발표
발표분야
분석화학 - Oral Presentation of Young Analytical Chemists Ⅰ
저자 및
공동저자
최진영, 현유라, 황은정, 박희구1, 이창섭*
계명대학교 화학과, Korea
1계명대학교 화학시스템공학과, Korea
In this study, transition metal coated carbon nanofibers (CNFs) were synthesized and applied as anode materials of Li secondary batteries. The CNFs/Ni foam was put into the 0.01 M transition metal solutions after the CNFs were grown on Ni foam via chemical vapor deposition (CVD) method. The transition metal coated CNFs/Ni foam was dried in a dryer at 80 ℃. The morphologies, compositions, and crystal quality of transition metals/CNFs/Ni foam were characterized by SEM, EDS, XRD, and Raman spectroscopy. The electrochemical characteristics of transition metals/CNFs/Ni foam as anode of Li secondary batteries were investigated using three-electrode cell. The transition metals/ CNFs/Ni foam was directly employed as a working electrode without any binder, and lithium foil was used as the counter and reference electrodes. 1 M LiClO4 was employed as electrolyte and dissolved in a mixture of propylene carbonate (PC) : ethylene carbonate (EC) in a 1:1 volume ratio. The galvanostatic charge/discharge cycling and cyclic voltammetry measurements were carried out at room temperature by using a battery tester. In particular, synthesized transition metals/CNFs/Ni foam showed the highest retention rate (41%). The initial capacity (670 mAh/g) was reduced to 275 mAh/g after 30 cycles.

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