1. Wuhan National Laboratory for Optoelectronics; Huazhong University of Science and Technology; Wuhan 430074 Hubei P. R. China
2. Laboratory for Computational Materials Engineering; Division of Energy and Environment; Graduate School at Shenzhen; Tsinghua University; Shenzhen 518055 Guangdong P. R. China
3. State Key Laboratory of Coal Combustion; School of Energy and Power Engineering; Huazhong University of Science and Technology; Wuhan 430074 Hubei P. R. China
4. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics; Chinese Academy of Sciences; Beijing 100190 P. R. China
5. National Synchrotron Radiation Laboratory; CAS Center for Excellence in Nanoscience; University of Science and Technology of China; Hefei 230029 Anhui P. R. China
6. Key laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education); Hubei Key Laboratory of Material Chemistry and Service Failure; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; Wuhan 430074 Hubei P. R. China