| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.555 |
| 발표분야 |
[주제 8] 에너지 저장 |
| 제목 |
The effect of different types of starch structure on silicon anode binder for high-capacity lithium ion batteries |
| 초록 |
Silicon (Si) is a promising high-capacity materials. However, the massive volume change of Si during repeated charge-discharge cycles has been identified as the main origin of insufficient cycle lives of Si anodes. It has been found that binders can contribute substantially to improving their cycle lives. To find a better high performance Si anode binder, we attempted to use a unique starch binder. In this study, the relationships between the structure and properties of the novel starch binder are systematically investigated with the objective of improving electrochemical performance of Li-ion batteries. Corn starch, potato starch and waxy maize only consisting of amylopectin were selected to find out the effect of crystallin differences on li ion conductivity and the effect of amylose and amylopectin on silicon binders. We reveal that the structure of the crystalline of the starch affects the li-ion conductivity of the binder. Also, the one-step chemical synthesis was applied in this work to fabricate the binder more efficiently. Potato starch which has B-type crystallinity demonstrated a good reversible capacity of 2500mAh/g after 100cycles at 1C for Li half battery. |
| 저자 |
권오현, 남인호, 엄호종, 강지현, 장서현, 최세영, 박종권, 신준협
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| 소속 |
중앙대 |
| 키워드 |
재료(Materials) |
| E-Mail |
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| 원문파일 |
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