Seminar & Colloquium
[콜로퀴엄: 4월 27일(수), 오후 5시] 성균관대학교 에너지과학과, 윤원섭 교수
Title
차세대 리튬이차전지용 고에너지 양극소재들에 대한 오해와 진실
(Dispelling myths about high energy layered cathode materials for next-generation Li batteries)
Speaker
성균관대학교 에너지과학과, 윤원섭 교수
Education
- 1988.03-1995.02 연세대학교 금속공학 학사
- 1995.03-1997.02 연세대학교 금속공학 석사
- 1997.03-2001.02 연세대학교 금속공학 박사
Professional experiences
- 2001.03~2001.10 연세대 산업기술연구소, 박사후 연구원
- 2001.11~2002.10 State University of New York at Stony Brook (미국), Post-Doctoral Research Fellow
- 2002.11~2004.03 Brookhaven National Lab. (미국), Research Associate
- 2004.04~2008.02 Brookhaven National Lab. (미국), Principle Investigator
- 2008.03~2011.08 국민대학교 신소재공학부, 조교수/부교수
- 2011.09~2016.02 성균관대 에너지과학과, 부교수
- 2016.03~현재 성균관대 에너지과학과, 교수
| Date | Wednesday, April 27th, 2022
| Time | 17:00 ~
| Venue | #201, Bldg. 43-1 (43-1동 201호)로 가지마시고, 온라인 강의 (eTL)로 출석확인 해주세요. 강의 당일 공지 때 화상강의 링크 정보를 알려드립니다.
온라인 강의 (https://snu-ac-kr.zoom.us/j/96223699101)로 출석확인 해주세요.
[Abstract]
Keywords: layered cathode material, dispelling myths and establishing the facts, relationship between layered structures and electrode performances
Batteries with higher energy densities require higher capacity in the electrode, which motivates the increase of Ni in the layered cathode system. Nevertheless, fundamental effects of Ni element in the layered cathode materials have not been systematically studied. Layered cathode materials like LiCoO2, LiNiO2 were discovered and studied in 1980s and the most of layered derivatives were well documented in the early 90s. The pioneering studies about layered cathode materials in the 80s and 90s provide systematic information for developing well-engineered layered cathode materials for high-performance batteries in EVs. Now, three decades after the pioneering research on layered cathode materials, the question “Were there any misunderstanding about layered cathode materials from the current textbook?” has emerged. In this work, we try to dispel myths about the relationship between layered structures and electrode performances by using synchrotron-based X-ray techniques and some advanced analytical methods. The insight from this work would establish new facts against myths about layered structures uncovering the opportunities to develop novel cathode materials with better performances and strong IPs.
| Host | Prof. Woong-Ryeol Yu (880-9096)