12 WCU Seminar 2010 1 Title Cathode Materials

제 12차 WCU Seminar 2010 에너지환경 화학융합기술 전공 1. Title : Cathode Materials Study using Synchrotron based In Situ X-ray Techniques 2. Speaker : Ph. D. , http: //c 2 e 2. snu. ac. kr Kyung Yoon Chung (Advanced Battery Center, KIST) 3. Date : April 19 (Mon), 5: 00~6: 15 P. M. 4. Venue : Building 302, Room 720 5. CV : 1992 – 1998 B. S. , Metallurgical Engineering, Yonsei University 1998 – 2003 Ph. D, Metallurgical Engineering, Yonsei University (A Study on the Capacity Fading and the Replacement of Surface Film at the Surface of Li. Mn 2 O 4 Thin Film Electrode) 6. Abstract : Since the first commercialization of the lithium secondary batteries, Li. Co. O 2 has been mainly used as the cathode materials for the lithium secondary batteries. The Li. Co. O 2, performs relatively satisfactorily for small electronics applications such as cellular phone and laptop computers. However, cost and safety characteristics as well as capacity and cycle life characteristics becomes very important for the large scale application of the secondary batteries to such as plug-in hybrid electric vehicles (PHEV) and electric vehicles (EV), and the required specifications for the cathode materials for the large scale lithium secondary batteries for PHEV and EV exceeds those of Li. Co. O 2. For the development of novel cathode materials thorough understanding of Li. Co. O 2 and possible candidates will be very beneficial. In this talk, general background about lithium secondary batteries will be given and some of the experimental data will be discussed. The synchrotron based in situ X-ray techniques are used as a main tool to understand the behavior of the cathode materials. 7. Contact : Prof. Jyongsik Jang (☏ 880 -7069) 서울대학교 화학생물공학부