Liquid-Dispense Gap Fillers and Thermal Pads Case Study

This white paper presents a case study comparing the thermal performance of liquid-dispense gap fillers and thermal pads, focusing on their thermal impedance characteristics. The study highlights the significance of effective thermal interface materials (TIMs) in managing heat generated during charge and discharge cycles in lithium-ion battery packs. It details the application methods for both TIM types, emphasizing the differences in their physical properties and application processes. The research aims to provide insights into the thermal conductivity and resistance of these materials, which are critical for optimizing battery pack efficiency and performance. Experimental methods, including the use of a TIM tester and adherence to ASTM D5470 standards, are outlined to measure thermal impedance across various pressures and thicknesses. The findings are intended to assist battery pack designers in selecting appropriate TIMs to enhance heat transfer efficiency and support the growing demand for high-performance electric vehicles.