Affiliation: | 1.Division of Advanced Materials Engineering, Kongju National University, Cheonan, Chungnam, 330-717, Republic of Korea ;2.Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea ;3.Advanced Batteries Research Center, Korea Electronics Technology Institute, Seongnam, Gyeonggi, 463-816, Republic of Korea ;4.Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi, 426-791, Republic of Korea ; |