Lithium ion batteries are not sustainable and impractical for grid level storage.
Just because you can make a ridicuously massive lithium ion battery with a million mile range doesnt mean it’s actually a good idea.
The future is aluminum ion batteries, and fuel-cell (running waste vegetable oil and biodiesel) supercapacitor hybrids. We have a MASSIVE recycling and processing infrastructure for aluminum already set up.
Grid problems will be solved by nuclear fusion.