1. BTR New Material Group Co., Ltd., Shenzhen 518107, P. R. China
2. MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
3. State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
4. Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, Fujian, P. R. China