So we know the Bolt has a higher heat tolerant chemistry and thus uses a simpler bottom cooling plate design. Further GM engineers have said the passive radiation from the plate, hoses and such is sufficient to cool the glycol so the loop doesn't need to be part of the radiator loop (which is used just for the motor and inverters). Which begs the question, how is that battery bump cooled? We have heard there is a separate cooling system for it but I don't see any evidence of that.
Here is a block diagram
Here is appears like there may be a plate on the back side of the battery, specifically for cooling that top battery bump I assume. However looking at the picture above we don't see any evidence of it.
Color me puzzled .... :nerd: