1. Liquid Metal and Cryogenic Biomedical Research Center Technical Institute of Physics and Chemistry Chinese Academy of Sciences 29 Zhongguancun East Road, Haidian District Beijing 100190 P. R. China
2. School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. College of Water Conservancy and Hydropower Engineering Sichuan Agricultural University Ya'an Sichuan 625014 P. R. China
4. Energy Storage and Novel Technology of Electrical Engineering Department China Electric Power Research Institute Beijing 100192 P. R. China
5. Department of Vehicle Engineering College of Engineering China Agricultural University Beijing 100083 P. R. China
6. Beijing Key Laboratory of Cryo‐Biomedical Engineering and Key Laboratory of Cryogenics Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China