Heat pumps and great thermal management is one thing. The other is battery chemistry. Unfortunately nickel is expensive and I'm not sure if there is enough fo

Heat pumps and great thermal management is one thing. The other is battery chemistry. Unfortunately nickel is expensive and I'm not sure if there is enough for large market penetration of electric cars. But high nickel (and potentially cobalt) batteries have less degradation from cold. LFP batteries don't have nickel or cobalt. They might work in the cold with more management. Björn Nyland has tested a large amount of vehicles, including a made in China Tesla Model 3 that uses LFP batteries, in cold conditions.