Researchers at McGill University have developed a technique to improve the performance of all-solid-state lithium batteries.

Researchers at McGill University have achieved a significant breakthrough in the development of all-solid-state lithium batteries, a promising next-generation technology for electric vehicle (EV) applications.

Figure 1. McGill Researchers Develop Polymer-Filled Ceramic Membrane to Enhance All-Solid-State Lithium Battery Performance for Electric Vehicles

By tackling a persistent challenge in battery performance, this innovation could lead to safer and more durable electric vehicles (EVs). Figure 1 shows McGill Researchers Develop Polymer-Filled Ceramic Membrane to Enhance All-Solid-State Lithium Battery Performance for Electric Vehicles.

The issue arises from the resistance at the interface between the ceramic electrolyte and the electrodes, which hampers battery efficiency and limits energy output. The research team found that using a porous ceramic membrane instead of the conventional dense plate and filling it with a small amount of polymer can effectively address this problem.

Enhanced Battery Efficiency and Stability

"Utilizing a polymer-filled porous membrane enables lithium ions to move freely and eliminates the interfacial resistance between the solid electrolyte and the electrodes," stated George Demopoulos, Professor in the Department of Materials Engineering and the research leader.

"This not only enhances the battery's performance but also establishes a stable interface for high-voltage operation, which is a crucial objective for the industry."

Current lithium-ion batteries utilize liquid electrolytes, which present safety hazards due to their flammability. All-solid-state batteries seek to eliminate liquid components in favor of solid ones to enhance safety and efficiency. This innovative design provides a new solution to a major challenge in making all-solid-state batteries a viable option for the electric vehicle industry.

“This breakthrough moves us closer to developing the next generation of safer and more efficient batteries for electric vehicles,” stated Senhao Wang, the study's first author and a PhD graduate from the Department of Materials Engineering.

Source: SciTechDaily

Cite this article:

Janani R (2024), Researchers Break Through Major Barrier for Safer, More Efficient EV Batteries, AnaTechmaz, pp.1036