Why is Tesla focused on iron-based battery chemistries?

“There are vast amounts of iron (and lithium) on Earth, but much less nickel. For global industry to scale battery production to ~10 TWh/year, it needs to be mostly iron. Higher energy density of Nickel only needed for very long range vehicles & aircraft.”

— Elon Musk, 3 September 2021 · Post on X ↗