That's why Toyota and Idemetsu Kosan announced that they should be mass producing Solid State Batteries ny 2027 at Narendra Modi's Vibrant Gujarat conference earlier this year [0] (also as a way to lobby their way into getting tax exemptions on Hybrid PEVs)
Solid state batteries are something different. Both Lithium and Sodium can be used for them - Lithium has better density, but again Sodium is cheaper. Sodium ones are still being researched, but eventually can be 2-3x energy denser than current Lithium Ion.
[0] - https://www.reuters.com/business/autos-transportation/toyota...