Trident™ Thermal Conductivity Application Highlight: Battery’s Specific Heat Capacity Characterization using the FLEX TPS Cp Utility
This Application Highlight illustrates C-Therm’s FLEX Transient Plane Source (TPS) system’s capability to measure the specific heat capacity (Cp) of battery cells. The specific heat capacity (Cp) of a material represents the amount of heat required to raise the temperature of the material. Since batteries emit heat as they operate, Cp has a direct consequence on the safety and longevity of the battery system; the higher the Cp, the more heat the batteries can “store” before increasing their temperatures considerably.
Figure 1: Battery cells generating heat during operation.
Due to their large sample size and multilayered structure, the Cp measurement of batteries has been considered challenging to perform without destroying the sample or preparing a dedicated setup for Cp measurement. The Cp Utility available in C-Therm’s FLEX Transient Plane Source (TPS) system offers a capability to measure this property in a non-destructive, straightforward manner.