I don't think licensing was their primary motivation. It was expedience.
The BMS was a shortcut to get the job done with commodity technology. Tesla
should strongly consider transitioning to safer cells as soon as they can
because if the BMS ever blows up in a Pinto fireball it's ALL OVER for them.
-----Original Message-----
My guess is that they (Tesla) want to own the battery module technology and
offer it for sale to OEMs. That being said, buying expensive, propietary
LiFePO4 cells probably doesn't fit into that plan right now. I'd bet that
they just cannot get the price point they want from A123.
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