Canadian McGill University Researchers Discover Method to Boost Solid-State Lithium Battery Performance

TapTechNews October 7th news, researchers at McGill University in Canada have discovered a way to improve the performance of solid-state lithium batteries, which is expected to boost the progress of electric vehicle battery technology.

According to a latest study by the McGill University research team, they have successfully solved the long-standing performance bottleneck of solid-state lithium batteries, paving the way for the development of safer and more durable electric vehicles.

As TapTechNews understands, all along, one of the main challenges faced by solid-state lithium batteries is the interface impedance between the ceramic electrolyte and the electrode, which reduces the efficiency and energy output of the battery. The research team solved this problem by innovatively using a porous ceramic membrane instead of the traditional dense plate and filling a small amount of polymer.

The head of the research team and professor of materials engineering, George Demopoulos, said: By using a polymer-filled porous membrane, we can allow lithium ions to move freely and eliminate the interface impedance between the solid electrolyte and the electrode. This not only improves the performance of the battery, but also creates a stable interface for high-voltage operation, which is a key goal in the industry.

Currently, lithium-ion batteries mainly rely on liquid electrolytes, which have potential safety hazards. Solid-state lithium batteries aim to replace liquid components with solid materials to improve safety and efficiency. This new study provides a new way to overcome a key obstacle to the commercialization of solid-state lithium batteries.

The first author of the study, Senhao Wang, a doctoral graduate in the Department of Materials Engineering, said: This discovery brings us closer to developing the next generation of safer and more efficient electric vehicle batteries.