1. Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Yachigusa 1247, Yakusa, Toyota, Aichi 470-0392, Japan
2. Battery Research Division, Toyota Motor Corporation, Mishuku 1200, Susono, Shizuoka 410-0017, Japan
3. Material Solutions New Research Engine, KANEKA Corporation Techno-Alliance Building, Osaka University, Yamadaoka 2-8, Suita, Osaka 565-0871, Japan