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Are you implying there haven't been any battery breakthroughs? What do you think the average capacity, density and cycle time of a battery in 2003 vs 2023 is.

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I’d rather an article talk about how panasonic cells achieved 20% more density over 5 years at volume production. Much more impressive.

https://electrek.co/2020/07/30/tesla-batteries-energy-densit...

Same - and more globally too. I'd love to know how GM got their quality act together, how Airbus builds 100 a320s a month with no public defects, etc.

The real, slow engineering stories have the best lessons

There has been a good gradual progress, and all the incremental improvements added up to much better batteries.

However, there regularly are press releases promising breakthroughs, but they either never reach production, or end up being one of the small incremental improvements, not a revolution.

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