A Top Tesla Executive Just Backed A Startup That Makes Ice Batteries — Fortune

Tesla chief technology officer JB Straubel, the brains behind Tesla’s original idea to use lithium-ion batteries to power a car, has invested in a startup that stores energy using supermarket refrigerators and frozen salt water. This week, that startup, Axiom Energy, announced that it had raised another $2.5 million from investors including Straubel and a…

via A Top Tesla Executive Just Backed A Startup That Makes Ice Batteries — Fortune

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