Hello, everyone! I am Wang Jiajia, from China. Now, I’m a PhD student from Graduate school of science and technology, Hirosaki University. My research is to prepare battery materials, especially anode materials for sodium ion batteries and cathode materials for lithium sulfur battery, and simultaneously to investigate the electrochemical performance during the charging/discharging process. For my hometown, it is a small city called Jiaozuo, which is located at the northwest of Henan Province, bordering the Taihang Mountains in the north and the Yellow River in the south. If you like kung fu, it is a good choice. Because it is the birthplace of Chinese Taijiquan. Finally, it is my interest. I like to eat delicious food, but I am not good at cooking.