1. Division of Advanced Materials Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam, Republic of Korea
2. Energy Lab, Samsung SDI Co., LTD, 428-5, Gongse-ri, Giheung-eup, Yongin-si, Gyeonggi-do, Republic of Korea
3. Sunchon Branch, Korea Basic Science Institute, 315 Maegok, Sunchon, Jeonranam-do, Republic of Korea