Well worth a review: Direct AC cooling plate - the evaporator is built into a plate on the battery Embedded heating elements - again, inside the battery Cell adjacent BMS - fewer long control cables Tesla does a nice job of routing heating and cooling between all system of the car and cabin. But there are these coolant loops. I like the more direct approach of building the cooling and heating directly into the battery. This avoids inefficiencies from passing a heating/cooling fluid around the car. For the battery as a standalone system, I like the elegant BYD battery. For a total vehicle, the Tesla approach should work best. Waste heat from the motor can warm the cabin and/or battery. Bob Wilson
Wondering what costs are when something has troubles. One thing good about keeping heating / coolant system outside the traction pack is when/if it goes south, you don't have to crack open the traction pack for repairs.
Repairs seem to be at the bottom of the engineers list these days . Maybe a result of forcing down costs
Or .... helping the service center remain a bigger profit center, which has long been a Stealership's bread & butter
