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world’s first anode-free sodium solid-state battery – a breakthrough in inexpensive, clean, fast-charging batteries(pme.uchicago.edu)

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Caveman@lemmy.world
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I wouldn’t call it a single advancement but hundreds. The materials might be largely the same but manufacturing is huge. When you roll up some metal to make a battery then increasing the number of layers is a huge challange when they’re already tiny.

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