Depends on the car I'm sure. But hybrid batteries are much lower capacity, and there's a lot less pressure to optimize capacity. If your EV has a 200 mile rang

Depends on the car I'm sure. But hybrid batteries are much lower capacity, and there's a lot less pressure to optimize capacity. If your EV has a 200 mile range, and you can optimize the battery to get 10% more range, that's useful. If your PHEV has a 30 mile EV only range, 10% more doesn't do much unless that's what it takes to hit a regulatory target. For a non plug in hybrid, a 10% increase in capacity is even less noticable. I think you'll see more focus on density (space and charge) in EVs because of this; but as EVs commercialize denser batteries, may as well put those in hybrids if the cost or space savings are meaningful.