The conversation between human and AI assistant.
Why are lithium-ion batteries so much more common than, say, sodium-ion batteries?
Oh, I see. So are there any advantages to using sodium-ion batteries instead?
Sodium-ion batteries may be advantageous in certain applications, such as grid-level energy storage, because sodium is more abundant and therefore cheaper than lithium. However, sodium-ion batteries are still in the early stages of development and are not yet as energy-dense as lithium-ion batteries.