Ahead of Battery Day, Tesla CEO Musk teases huge jump in energy density

Ahead of Battery Day, Tesla CEO Musk teases huge jump in energy density

2020 Tesla Model YEnergy density for lithium-ion cells in electric cars has been improving at a rate of roughly 7% a year. But that rule, which has held for consumer cells for decades might be thrown to the wayside if a remark from CEO Elon Musk holds true. He noted that cells with 400 Wh/kg, produced in volume, might be just 3-4 years away. 400 Wh/kg *with* high…

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