1. State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
2. College of Naval Architecture and Mechanical-Electrical Engineering, Zhejiang Ocean University, Zhoushan 316000, P. R. China
3. Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
4. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou 310013, P. R. China