Under modern physics, Lithium is pretty much the best possible chemical to build batteries out of. Anything else that might be better won’t be a chemical battery, and it’s not like there’s any reason to suspect some new magic thing will be created like a pocket-size fusion reactor that will make chemical batteries totally obsolete any time soon. Decades more of lithium batteries being relevant are as close to guaranteed as can be.
Sodium batteries are cheaper, safer, and last longer than lithium batteries. That’s exactly what you want for grid-scale energy storage. So yes, sodium IS better than lithium for grid-scale energy storage
Under modern physics, Lithium is pretty much the best possible chemical to build batteries out of. Anything else that might be better won’t be a chemical battery, and it’s not like there’s any reason to suspect some new magic thing will be created like a pocket-size fusion reactor that will make chemical batteries totally obsolete any time soon. Decades more of lithium batteries being relevant are as close to guaranteed as can be.
Sodium batteries? Of course it depends on their use a bit.
Those are not “better” batteries chemically or electrically. They are just cheaper and don’t use lithium which is considered a feature.
Sodium batteries are cheaper, safer, and last longer than lithium batteries. That’s exactly what you want for grid-scale energy storage. So yes, sodium IS better than lithium for grid-scale energy storage
They are also fine for cars that don’t need to have 1000km of range, for some stupid reason.
And you can even mix-and-match cells of both types in a vehicle to better fit a target demographic. It’s not simply one or the other.
That being said, it’s better to have a car with a 200 mile range sodium battery and a small range extender for that 2-4 times per year trip