Faraday Future’s FFZERO1 Concept car at the Consumer Electronics Show in Las Vegas in January . (ROBYN BECK/AFP/Getty Images)

Faraday Future, the Los Angeles-based automotive startup backed by Chinese billionaire Jia Yueting, formed a partnership with South Korea’s LG Chem to supply lithium-ion cells for electric vehicles it’s developing but has yet to reveal.

Under the agreement the two companies will work together to develop batteries with the highest energy density in the auto industry, they said in a statement. Faraday Future, a would-be competitor to Elon Musk’s Tesla, has said it plans to introduce a line of connected, electric vehicles that offer new types of mobility solutions. So far, it’s only shown the FFZERO1, a high-powered concept electric race car reminiscent of the Batmobile. Still, spy photos indicate the company has more conventional designs in the works.

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