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Because the battery pack is made up of many parts and many different materials with different thermal conductivities, specific heat capacities, etc., we will focus only on the materials that are physically located close to the cells, and have a good thermal coupling to the cells.
We will also assume that all the other components that are in the high current path (and thus produce heat) have a small enough power loss compared to their thermal mass that they can be neglected (relays, connectors, etc.)
Here is a table that outlines some of the materials we are using the in battery pack, and their associated thermal characteristics. The values in the table are not to be used for mathematical calculations (ans so were significantly rounded), and were only used to determine relative thermal capacities between the parts of the pack.
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