Laila Ghareeb and Owen Schneider, “Characterizing Adhesive Properties of Li-Ion Battery Electrodes”
Mentor: Deyang Qu, Mechanical Engineering, Engineering & Applied Science (College of)
Poster #74
The energy storage industry is rapidly expanding, with batteries at the forefront of new technology. Electric cars, medical devices, and the phones that just about every person now carries with them every day, all require lithium-ion batteries. Battery electrodes are essential components that facilitate the flow of electrical current within a battery. They typically consist of a conductive base, such as copper or aluminum, coated with a conductive layer that contains active material, carbon additives to enhance conductivity, and a binding agent. This project aims to identify key factors that influence the adhesive properties of various electrode coatings to improve battery manufacturing processes and ensure long-term reliability. The strength of this coating’s adhesion directly affects the battery’s durability and performance. To analyze this, ASTM D3330 is utilized, a standardized peel test designed to measure adhesive strength. After preparing the electrodes, the coating is securely attached to a strip of tape that works as a constant. The tape gives the Instron 3369 extensometer something to use as a handle to peel off the coating. An extensometer is a strain measurement device that gives data on the force required to detach the coating. This method provides consistent and quantifiable data on how securely the coating adheres to the electrode surface based on the strength needed to peel it from the electrode. This data can be used to improve electrode coating durability and consistency. These findings have the potential to support advancements in electric vehicles, renewable energy systems, and portable electronics. This research ultimately contributes to the development of more efficient and reliable energy storage solutions for the modern world.