1. Advanced Batteries Research Center, Korea Electronic Technology Institute, 68 Yatap-dong,
Bundang-gu, Seongnam 463-816, Republic of Korea
2. Department of Energy Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea
3. Institute for Superconducting and Electronic Materials, University of Wollongong, North Wollongong, New South Wales 2500, Australia
4. Department of Physics
and Astronomy, College of Science, P.O. Box 2455, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia