DENG Feng1,2**, ZHOU Zhi-Yong3, DING Hui-Ling4, MA Xiu-Qin2
1. The Key Laboratory of Guizhou Higher Education Institutions for Research and Development of New Lithium-ion Battery Materials, Guizhou University of Engineering Science, Bijie 551700, China; 2. School of Mechanical Engineering, Guizhou University of Engineering Science, Bijie 551700, China; 3. School of Marxism, Guizhou University of Engineering Science, Bijie 551700, China; 4. History Teaching and Reseach Group, The NO.2 Middle School of Bijie, Bijie 551700, China