Temperature control of intercalation batteries such as lithium-ion (LIB) and sodium-ion (SIB) batteries serves to improve performance and increase safety and lifespan. The use of thermal management systems is essential for this, particularly when used in large battery cell systems such as battery-electric vehicles or large stationary energy storage systems. For the design of such systems, thermophysical properties—specifically thermal conductivity, density, and specific heat capacity—are key parameters. However, the properties of new cell systems, such as next-generation LIBs or SIBs, have been poorly studied or not researched at all. In simulation studies, the effective values for battery electrodes—as the smallest common unit across different cell formats—were determined based on the values of the pure materials. Additionally, variation studies were conducted to demonstrate the influence of the composition and pure material values of the active materials on the effective value.