Is there a reason to not use a combination of battery types in an EV? Have a smaller rechargeable lithium battery for daily commutes and regenerative breakes. H

Is there a reason to not use a combination of battery types in an EV? Have a smaller rechargeable lithium battery for daily commutes and regenerative breakes. Have a space/socket for a larger single-use aluminum battery for when you need the extra range. Assuming these things are stable enough, it really would not be hard for gas stations to keep a couple of these on a shelf. The hardest part would be scheduling the pickups for recycling.