On April 26, 2025, Professor Chou Shulei from Wenzhou University was invited by Prof. Yuxin Tang of School of Chemical Engineering to give a lecture entitled “Research and Development of Wide Temperature Range, Low-cost and High-safety Sodium-ion Batteries” in the Uer Lecture Hall, South 101, Quan Gang Building.
Prof. Chou systematically elaborated the current status of sodium-ion battery technology, and highlighted his team's breakthrough achievements in cathode and anode materials: the tonnage preparation of Prussian blue cathode and biomass hard carbon anode. Among them, Prussian blue cathode has the advantage of low cost compared with commercialized layer oxygen cathode, its theoretical energy density is close to that of lithium iron phosphate, and its multiplicity performance is excellent. In addition, Prussian blue has a cubic structure, and the iron and fluorine groups are combined closely enough that it is almost impossible for the highly toxic cyanide ions to free out, which is non-toxic in itself. As for the biomass hard carbon negative electrode, Prof. Kou compared the material bases at home and abroad in detail, and chose to use bamboo as the precursor of hard carbon, which has the advantages of low cost and wide source. Subsequently, the professor introduced in detail the processing and treatment work on hard carbon, such as the ash impurities of raw materials and the controllable adjustment of the pore structure of hard carbon.
Lecture scene
The presentation triggered a warm response from students and faculty members, and the Q&A session was a deep exchange of ideas on the key issues of battery technology. This event not only broadened academic horizons, but also built a bridge for interdisciplinary cooperation, injecting new momentum for innovation in the field of electrochemical energy storage. In the future, the university will continue to promote this kind of high-level academic activities, deepen the integration of industry, academia and research, and help the synergistic development of science and technology and society.
Group photo
