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First principles. Cost of lithium-ion batteries in rapid decline https://www.bloomberg.com/news/articles/2017-12-05/latest-bull-case-for-electric-cars-the-cheap

• st26 8y ago
  The question wasn't cost, as I recall it was basically power-density, longevity, & recharge rates. Ten or fifteen years ago, you couldn't fit enough battery in a car to get a useful range at any cost. That's why the supercharger network was a bigger deal years ago, and why fuel cells were in focus back then, and have dwindled as batteries gained ground (IMO)