| 학회 | 한국재료학회 |
| 학술대회 | 2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 | 24권 2호 |
| 발표분야 | 3. 에너지 저장재료 실시간 분석 심포지엄(In Situ/Operando Analysis of Energy Storage)-오거나이저: 이현욱 교수(UNIST) |
| 제목 | Single-level spectromicroscopy for electrochemical systems : lithium-ion batteries, fuel cells, and microbial fuel cells. |
| 초록 | Electrochemistry plays a significant role in energy storage and conversion technologies, such as lithium-ion batteries, fuel cells, and microbial fuel cells. Because of porous and heterogeneous nature of the electrodes in these applications, the conventional current-voltage measurement shows certain limit in untangling complexity of electrochemical reactions (charge transfer, mass transport, chemical reactions and so on). Here in my talk, I will introduce the in-situ electrochemical platform combined with synchrotron-based X-ray spectromicroscopy which visualizes nanoscale charge transfer and electrochemical reactions of individual battery particles.[1,2] Within individual particles, spatial variations in the electrochemical reaction rate control lithium ion insertion pathway. I will also discuss how this technique is expansively applied to other electrochemical systems in my group. [1] J. Lim et al “Origin and Hysteresis of Li Compositional Spatio-Dynamics within Battery Primary Particles”, Science, 2016, 353, 566-571 [2] Y. Li et al “Fluid-enhanced Surface Diffusion Controls Intraparticle Phase Transformations” Nature Materials, 2018 in press |
| 저자 | Jongwoo Lim |
| 소속 | Department of Chemistry |
| 키워드 | |
