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Musk Says Nickel Is ‘Biggest Concern’ For Electric-Car Batteries

Elon Musk

Elon Musk

Photographer: Win McNamee/Getty Images

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Elon Musk has had it with nickel.

It’s scarce and expensive, so the chief executive officer of electric-carmaker Tesla tweeted on Thursday that the company’s shifting some cars to a type of battery that uses iron instead.