| 학회 |
한국재료학회 |
| 학술대회 |
2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 |
26권 1호 |
| 발표분야 |
특별심포지엄6. 차세대 배터리 심포지엄-오거나이저: 김종순(세종대) |
| 제목 |
Redox active organic molecules for advanced energy storage |
| 초록 |
The redox activity of organic compounds has enriched chemistry for sustainable energy storage. One of the examples is solution‐based chemical prelithiation using a reductive chemical. Such solution-based method promises unparalleled reaction homogeneity and simplicity in comparison with other prelithiation methods based on solid-state mixing. However, the organic compounds applied so far cannot dope active Li in Si‐based high‐capacity anodes but merely form solid–electrolyte interphases, leading to only partial mitigation of the cycle irreversibility. I will present our recent work demonstrating a molecularly engineered Li–arene complex with a sufficiently low redox potential drives active Li accommodation in Si‐based anodes to provide an ideal Li content in a full cell. Fine control over the prelithiation degree and spatial uniformity of active Li throughout the electrodes are achieved by managing time and temperature during immersion, promising both fidelity and low cost of the process for large‐scale integration. |
| 저자 |
이민아 |
| 소속 |
한국과학기술(연) |
| 키워드 |
<P>prelithiation; silicon anode; redox-active chemical; initial coulombic efficiency</P>
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| E-Mail |
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