On June 2, 2023, invited by Professor Tang Yuxin from Fuzhou University, Professor Yu Chuang from Huazhong University of Science and Technology came to our group for communication and visit, and gave a wonderful lecture entitled "Design and synthesis of functional lithium-sulfur-silver-germanium electrolytes and construction of high-performance all-solid-state batteries" to the students and teachers in the lecture hall of South 101, Quan Gang Building. The lecture was given by Mr. Zhang, who is a member of the faculty.
With the rapid growth of transportation electrification and distributed energy storage market, the traditional lithium-ion battery system based on liquid electrolyte can no longer meet the urgent requirements for high safety, high energy density, low cost and longer cycle life. Lithium-ion batteries with liquid electrolyte are prone to leakage, corrosion, combustion and other safety hazards, while the high energy density requirements will certainly cause more prominent safety problems, so it is crucial to improve the intrinsic safety of lithium batteries for their application in large-scale energy storage. Replacing liquid electrolyte with non-combustible solid electrolyte to build an all-solid-state battery with high safety, high energy/power density, long life, low cost, environmental adaptability and easier recycling is regarded as the ultimate solution to the current Li-ion battery safety problem. Li6PS5X (X=Cl, Br), a lithium-sulfur-silver-germanium-based electrolyte, is the most promising electrolyte for industrialization due to its high room temperature lithium ion conductivity (10-3~10-2 S/cm) and low cost. In addition to high conductivity and low cost electrolytes, there are still many challenges to realize practical sulfide-based all-solid-state lithium batteries, such as chemical/electrochemical stability, compatibility with electrode materials and lithium metal, thermal stability, and cost. Prof. Chuang Yu systematically explored the design and synthesis of functional lithium-sulfur silver-germanite solid-state electrolyte materials, their associated ionic conduction and their applications in high-performance all-solid-state batteries.
Prof. Yu Chuang's presentation aroused great interest among the participating students and faculty members, and the participants actively participated in the discussion session and had an in-depth exchange with Prof. Yu Chuang on research in related fields, further promoting academic cooperation and discipline development.
The exchange event provided a valuable platform for academic exchange among teachers and students of Fuzhou University. Through the sharing and discussion of academic reports, it promoted interdisciplinary cooperation and the sharing and innovation of scientific research results. It is believed that such exchanges and cooperation will further promote the development of the field of electrochemical energy storage and lay a solid foundation for future scientific breakthroughs.
Lecture scene
Group photo
