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This article is 100% fluff. It mentions "Solid state batteries" without ever saying what they actually are.

It actually does, these are batteries with solid rather than liquid or gel polymer electrode. Hard trick to pull off if you want low weight and high capacity - as lithium-sulphur experiments showed.

That's not even counting the entirely different manufacturing process causing very high prices.

At least these batteries are much safer and have much better cycling performance.

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