1. Al-ion Battery Research Center Department of Electrical Engineering and Automation Shandong University of Science and Technology No. 579, Qianwangang Rd Huangdao, Qingdao, Shandong 266580 China
2. Institute of Mold Technology Changzhou Vocational Institute of Mechatronic Technology No. 26, Middle Mingxin Rd Wujin, Changzhou, Jiangsu 213164 China