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this post was submitted on 29 Nov 2023
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Lots of companies have been saying they have solid state EV batteries for years, yet you still can't buy one. Either they can't figure out how to mass produce them cost effectively or there is some sort of problem with the battery.
I think toyota actually plans on getting there in the next few years. I think the current and final hurdle; which I'm guessing a couple different companies about have a complete handle on is the prevention of dendrites forming and causing the batteries to go bad from multiple charge cycles.
Toyota wouldn't be blowing fluff about having the batteries a few years away from production if they weren't confident about it happening. That's reserved for saying something is 7 to 10 years away.
I think it's more likely that Toyota dropped the ball on not investing in EVs early, so that they felt the need to announce they were working on some thing in hopes of staying relevant.
Toyota has been claiming to have EV-killing tech 3-5 years away for 20 years. It's part of the plan for selling hybrids.