1. Department of Chemical Engineering, Hanyang University, Seongdong-gu, Seoul 133-791, Korea, Energy Lab, Samsung SDI Corporate R&D Center, 428-5 Gongse-dong, Giheung-gu, Yongin-si, Gyeonggi-do 449-577, Korea, Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, and Department of Applied Chemistry, Sejong University, Seoul 143-747, Korea