1. Zhong Shan Rui Ke New Energy Company, Limited, 13th Torch Road, Torch Development Zone, Zhongshan City, Guangdong Province 528437, China
2. Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
3. HKUST-Shenzhen Research Institute, No. 9 Yuexing First RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China