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Wally Bryce's avatar

Happy Birthday Michael and great job

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Ernie Hernandez's avatar

Great interview, well done Robert.

I think you correctly highlighted the issue with rare earth minerals for lithium batteries and and rare earth magnets for motors. Sourcing cobalt is expensive and hazardous. It’s estimated that 90% of supply comes from China. That’s a risky supply chain.

But I’d like to get you thoughts on Elon’s plans to switch to a battery chemistry and motors with zero need for these rare earths, specifically lithium iron phosphate (LFP) and motors without rare earth magnets, I think he commented on this in the last annual shareholders meeting or when he talked about his Master Plan 3 earlier this year referring to the next gen platform, more specifically Colin Campbell declared that the Tesla power train team will eliminate rare earth magnets from their motors calling it “next gen permanent magnet motor” which does not include any rare earths, maybe substitutes with neodymium combined with iron..

Source: Interesting Engineering article by John Loeffler dated 5/1/23.

Thoughts?

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