| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Improved Cycling Ability of Silicon-Graphite Composite Anode Materials through the SEI Control |
| 초록 |
Silicon-graphite composites has been considered as promising anode materials for higher energy density Li-ion batteries because of larger theoretical specific capacity of silicon than currently commercialized graphite. They, however, suffer from a large volume change during lithiation and delithiation, resulting in the particle cracking, an instability of the solid electrolyte interphase (SEI) and finally leading to poor cycle life. In order to solve the problems, several strategies in the aspects of improved electrical conductivity and buffering effect of volume change have been developed, which are the fabrication of silicon composites with carbon materials and the use of functional binder and electrolyte additives. Here, we focus on the control of electrode-electrolyte interfacial reaction and the formation of a stable SEI layer using various additives. The influence of SEI stability on cycling performance of silicon-graphite composite anodes would be discussed in the meeting. |
| 저자 |
김재람1, 조현탁2, Nguyen Dan Thien3, 강길구2, 전도만1, 양아름2, 송승완4
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| 소속 |
1Dept. of Chemical Engineering & Applied Chemistry, 2Chungnam National Univ., 3Dept. of Energy Science and Technology, 4EG Corp. R&D 1팀 |
| 키워드 |
lithium ion batteries; silicon-based anode; solid electrolyte interphase(SEI); electrolyte additive
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| E-Mail |
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