On November 12, 2024, Professor Guo Xiangxin, a renowned expert from Qingdao University, visited our research group following an invitation from Professor Tang Yuxin of the School of Petrochemical Engineering at Fuzhou University. He participated in a fruitful academic exchange. In the You’er Lecture Hall, located in the South Building 101 at the Quangang campus, Professor Guo delivered an engaging academic presentation titled “Oxide Solid Electrolytes Powering High-Energy-Density and High-Safety Solid-State Lithium Batteries.”
In recent years, with the increasing demand for energy security and high energy density, solid-state lithium batteries, which use solid electrolytes instead of traditional liquid electrolytes, have gradually become a research hotspot. These batteries promise high energy density and enhanced safety. Professor Guo’s presentation was both insightful and easily understood, relying on his team’s extensive research background in oxide solid electrolytes and solid-state batteries. He discussed in detail the key challenges faced by oxide solid electrolytes in practical applications and their solutions. These challenges included issues related to ionic conductivity, high-conductance stable electrolyte membranes, the design of composite cathodes and anodes, and the interface management between the electrolyte and both the cathode and anode.
Professor Guo also specifically analyzed critical issues with oxide solid electrolytes in solid-state lithium batteries, such as the treatment of surface lithium carbonate, internal interface optimization within the cathode, interface design between the cathode and electrolyte layer, internal interface regulation of organic-inorganic composite electrolyte membranes, and optimization of the interface between lithium metal anodes and the electrolyte. Additionally, he proposed several innovative design concepts aimed at achieving high energy density and safety, including cathode-supported structures, the construction of thin and lightweight solid electrolyte layers, and integrated preparation techniques for electrodes and electrolytes.
Professor Guo’s presentation sparked enthusiastic responses from the faculty and students, eliciting deep interest and thoughtful reflection. The discussion session was exceptionally lively, with insightful and productive exchanges between the participants and Professor Guo on emerging phenomena and issues in solid-state battery research. This exchange not only deepened mutual understanding but also laid a solid foundation for future academic cooperation and disciplinary development.
Lecture scene
This academic exchange event provided faculty and students at Fuzhou University with a precious platform for academic interaction, promoting interdisciplinary collaboration and advancing the sharing and innovation of research findings. We firmly believe that such academic interactions will further propel the continuous progress in electrochemical energy storage and establish a robust foundation for future research breakthroughs. We eagerly look forward to more academic exchange activities to foster closer collaboration between the academic and industrial sectors, jointly advancing technological progress and societal development.
Group photo
