1. Research Institute of Electrochemical Energy (RIECEN), Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
2. RIKEN Center for Computational Science, Kobe, Hyogo 650-0047, Japan
3. Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan