It’s not just cars. How would homes store energy overnight without lithium? The current best available home storage is still lithium based (lithium iron phosphate).
Why do houses need storage? Why can't the grid operators do their job?
Pumped hydro is a practical grid-scale storage solution that doesn't need lithium.
[1] cost $4B for 24Gwh of storage. That's about the same as the cost of an equivalent amount of batteries. But it has run for 37 years. A battery installment would have had to be replaced at least twice.
