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제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Chitosan-based polymeric binder for highly-stable silicon anode in Lithium ion battery

등록일
2017년 8월 23일 11시 40분 22초
접수번호
1009
발표코드
ELEC.P-457 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 20일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Sang Ha Lee, Jeonghun Lee, Seon Kyu Yun, Mi suk Cho, Youngkwan Lee*
School of Chemical Engineering, Sungkyunkwan University, Korea
Here we demonstrate a novel binder material based on chitosan and rubber for silicon nanoparticle-based lithium ion battery anode. The chitosan and rubber was cross-linked, where various ratios between chitosan and natural rubber were adapted to optimize the mechanical and electrochemical properties. The mechanical and adhesive properties of cross-linked binder were investigated by using universal tensile machine, and its electrochemical properties were characterized by charge-discharge test and electrochemical impedance spectroscopy. It was found that the cross-linked chitosan-rubber with optimized composition can tolerate the stress generated by the volume variation of silicon particles, resulting in the outstanding cyclic stability. It might be due to tailored mechanical properties of binder material for silicon anode.

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