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A long-awaited battery that would cut electric-vehicle costs may finally be close

24M is reducing manufacturing costs by stripping out extraneous materials—and just got $22 million to begin building its first commercial factory.
by James Temple

In 2010, a pair of MIT materials scientists helped launch 24M, promising to deliver cheaper, better batteries by stripping out inactive materials in the electrodes. Eight years later, you still can’t buy the startup’s products. But in an interview last week, chief executive Rick Feldt said the “semisolid” lithium-ion batteries built in the company’s…

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