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Re:Tesla’s new patent involves using table salt to mine lithium by DennisP on Friday July 16, 2021 @06:49AM (#27854887)
The cost of lithium-ion batteries has dropped 97% over the past three decades. It's been a steady improvement and the trend is expected to continue.

https://spectrum.ieee.org/energy/batteries-storage/chart-beh...

It looks like cost parity with ICEs will happen around 2023.

https://www.caranddriver.com/news/a34992832/battery-price-dr...

Hydrogen is likely to be better for some applications though, like long-haul jets.

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