As the EV industry ramps up, it could be hindered by a global shortage of nickel, a key component in most lithium-ion batteries. Tesla recently signed a deal to source nickel from a proposed mine in Minnesota, though mining raises a variety of environmental concerns that EV automakers must grapple with if they want to source battery minerals responsibly. Many also hope that battery recycling technology will scale up quickly enough to make a dent in the problem.

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Why Global Nickel Shortage Is Elon Musk’s Biggest Concern