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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fabrication and Characterization of an Anode Material for Li Secondary Batteries Based on CNF and CNT - Si composites

등록일
2014년 8월 27일 10시 12분 54초
접수번호
0376
발표코드
ANAL.P-509 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
김수진, 박은실, 박희구1, 정재원2, 이창섭*
계명대학교 화학과, Korea
1계명대학교 화학시스템공학과, Korea
2한국이엔에쓰(주), Korea
We have performed a study on the characteristics of CNF and CNT-Si composites that used as an active anode material for lithium secondary batteries. Samples employed for the battery test were commercial products of GNF(Herring bone), GNF(Antler), CNT, CNF and lab-prepared CNF. Lab-prepared CNF was synthesized by Chemical Vapor Deposition(CVD) using Co and Cu catalysts. The test results of the samples were compared with the Si composites of each sample. The Si particles were ball-milled to a micron size and coated with pyrolytic carbon using by acetylene gas. Then it was finely mixed with respective five samples using ball mill. PTFE(Polytetrafluoroethylene) was used as the binder and glass fiber separator was used as the separator membrane for the composition of three electrode cell. As the electrolytes, 1M LiPFH6 was dissolved in a mixture of ethylene carbonate (EC) : propylene carbonate (PC) : ethyl methyl carbonate (EMC) in a 1:1:3 volume ratio. The five different CNF and CNT-Si composite materials were evaluated as the anodic material in three electrode cells. The morphology and composition of samples were analyzed by SEM and EDS measurements. Physicochemical properties were investigated using XRD, Raman spectroscopy and XPS. The electrochemical characteristics as an anodic material of Li secondary battery were investigated using the galvanostatic charge-discharge and cyclic voltammetry measurements. Acknowledgment: This research was financially supported by the Ministry of Education, Science Technology (MEST) and National Research Foundation of Korea(NRF) through the Human Resource Training Project for Regional Innovation(NO.2012026209).

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