In literature the importance of the thermal behavior of lithium-ion batteries is amply illustrated. In fact, various methods have been shown for analyzing fundamental thermal parameters, such as heat flux, and "in-plane" and "through-plane" thermal conductivities. However, the disadvantage of the methods present in the literature is that they do not consider the mechanical behaviors and specifically the phenomena of breathing and swelling, during the charging and discharging cycles, as they can influence the thermal behavior. Therefore, in general a legitimate question to ask is how the change in volume can affect the variation of the thermal parameters of a lithium-ion battery.