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제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Interfacial Chemistry Control for Improved Cycling Performance of High-Energy Lithium-Ion Batteries

등록일
2015년 8월 27일 14시 21분 44초
접수번호
0732
발표코드
KCS.O-1 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 09시 : 00분
발표형식
구두발표
발표분야
Oral Presentation for Young International Chemists
저자 및
공동저자
NGUYEN DAN THIEN, 송승완1,*
충남대학교 대학원 바이오응용화학과, Vietnam
1충남대학교 응용화학공학과, Korea
High-energy Li-ion batteries (LIB) are well-suited for electric vehicles and energy storage systems. High-energy batteries include high-capacity cathode and anode active materials and possess high cell voltage. The capacity of cathode material can increase when charging the cell to high-voltage above 4.3V vs. Li/Li+. Conventional electrolyte consisting of LiPF6 salt in ethylene carbonate based solvents however shows a limited performance on high-voltage operation due to its anodic instability. Development of new electrolyte components, which have an improved anodic stability and can form stable surface films at both cathode and anode, is needed to enable high-energy LIB. In this presentation, improved cycling performance of a high-energy LIB including silicon-carbon composite anode and layered Li(Ni,Co,Mn)O2 cathode materials using various electrolyte compositions are demonstrated, and the role and importance of interfacial chemistry control are discussed. Acknowledgments This research was supported by the Korean Ministry of Trade, Industry & Energy (A0022-00725 & 10049609) and by Ministry of Education and National Research Foundation (2012026203).

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