1. Department of Applied Chemistry; Graduate School of Science and Engineering; Ehime University; 3 Bunkyo-cho 790-8577 Matsuyama Japan
2. Research Unit for Power Generation and Storage Materials, and Research Unit for Development of Organic Superconductors; Graduate School of Science and Engineering; Ehime University; 3 Bunkyo-cho 790-8577 Matsuyama Japan
3. Research Institute of Electrochemical Energy; Graduate School of Science and Engineering; National Institute of Advanced Industrial Science and Technology (AIST); 1-8-31 Midorigaoka 563-8577 Ikeda, Osaka Japan