On September 18, 2025, Professor He Xiangming from Tsinghua University, at the invitation of Professor Tang Yuxin from the College of Chemical Engineering of our university, delivered an academic lecture entitled "Research on the Safety of Lithium-Ion Batteries". He systematically presented a series of innovative achievements made by his team in the field of battery safety.
The lecture comprehensively addressed core issues and future development directions in lithium battery safety, focusing on four key aspects: the inducing factors of lithium battery safety incidents, the chemical kinetic mechanisms of battery combustion, the correlation between the properties of liquid electrolytes and safety performance, and future-oriented solutions for lithium battery safety.
Professor He first pointed out that although lithium batteries are now widely used in various fields such as consumer electronics, electric vehicles, and energy storage systems, safety concerns remain significant. Current standards (e.g., GB/T 31485-2015) typically employ single-variable testing methods under laboratory conditions, which fail to effectively simulate the complex scenarios involving coupled mechanical, thermal, and electrical abuses in practical applications. This has led to the frequent occurrence of a "certification paradox," where batteries pass certification tests yet still experience failures in real-world usage.
Subsequently, he elaborated on the multi-factor induction mechanisms of lithium battery safety incidents and analyzed the key reaction pathways and energy release mechanisms during thermal runaway and combustion from a chemical kinetics perspective. Finally, the lecture emphasized the intrinsic relationship between the chemical properties of liquid electrolytes and battery safety performance, while proposing potential pathways and innovative solutions for enhancing battery safety. These included novel testing methodologies and innovative frameworks for reliability assessment.
Guided by his own research practice, Professor He vividly illustrated the complete innovation path from the discovery of fundamental issues to the integration of technical solutions. His interdisciplinary research approach provided profound inspiration to the attending faculty and students. The lecture effectively promoted cross-disciplinary integration and innovative collaboration across multiple fields such as materials science, physics, and chemistry.
Lecture scene
Group photo
