1. Chongqing Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Chongqing University, Huxi Campus, Chongqing 401331, P.R. China
2. Department of Physics, Harbin Institute of Technology, Harbin 150001, P.R. China
3. MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, Institute of Theoretical and Simulational Chemistry, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080 P.R. China