Background
Open-air plasma technology provides a versatile, tunable heat source for processing various materials, including those used in lithium-ion batteries. It enables rapid, controlled transformation, offering an advantage over traditional RF or microwave plasmas.
One critical application for open-air plasma technology is in solid-state batteries, which improve upon safety, stability, and performance over liquid electrolytes. A key challenge is processing lithium lanthanum zirconate (LLZO), a solid electrolyte, to remove lithium carbonate (Li2CO3) from its surface. Traditional methods for Li2CO3 removal are not suitable for large-scale manufacturing, creating a need for more efficient processes to improve battery performance and manufacturability.
Invention Description
Researchers at Arizona State University have developed an open-air plasma technology for processing materials used in lithium batteries. This technology addresses issues with current lithium-ion batteries, including safety and lifespan, by improving the processing of solid electrolytes like lithium lanthanum zirconate (LLZO). The invention specifically removes harmful compounds, like lithium carbonate (Li2CO3), from LLZO surfaces, which enhances the performance, safety, and efficiency of solid-state batteries, offering improved reliability and longer battery life for applications including electric vehicles and energy storage systems.
Potential Applications
Benefits and Advantages