| Si-C 복합체 전극의 바인더 종류에 따른 전기화학적 특성 변화 |
| 정성헌, 지미정1, 박근영1, 홍종일, 최병현1 |
연세대학교 신소재공학과
1한국세라믹기술원 전자소재팀 |
| Influence of the Binder Types on the Electrochemical Characteristics of Si-C Composites Electrode in LIBs |
| Sung-Hun Jung, Mijung Ji1, Geunyeong Park1, Jongill Hong, Byung-Hyun Choi1 |
Advanced Material Engineering, Yonsei University
1Electronic Materials Lab, Korea Institute of Ceramic Engineering & Technology |
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| ABSTRACT |
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This work presents the effects of binders on the electrochemical performance of Si-C composites as the anode of lithium ion batteries. PAI (polyamide-imide) was used as an organic binder, and PAN (polyacrylonitrile), PAA (polyacrylic acid) and CMC + SBR (carboxymethyl cellulose + styrene-butadiene rubber) were used as aqueous binders. As a result, stabilization time for the cell with a Si-C composite anode synthesized using aqueous binders became shorter than an organic binder. Particularly in the case of the cell using PAA binder, better performance was observed in terms of adhesion strength, initial efficiency, the volume expansion ratio, Coulombic efficiency, and capacity retention. |
| Key words:
Si-C composites, Aqueous binder, Polyacrylic acid, Anode materials, LIBs |
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