this post was submitted on 15 Jul 2023
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TeCHnology

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Sulfur Selenium Solid-State Battery From NASA Breaks Energy Storage Boundaries (cleantechnica.com)
submitted 2 years ago by _Frog@feddit.ch to c/technology@feddit.ch
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NASA says its sodium selenium prototype battery has an energy density of 500 watt-hours per kilogram, which is about double that of conventional lithium-ion batteries.

That battery is up to 40% lighter. Their sodium selenium battery cells can be stacked one on top of the other with no casing around them. Eliminating the casing around individual cells means more energy storage within a given amount of space โ€” a huge advantage when trying to fit batteries into the structure of an aircraft. It also means the cooling systems for the cells can be smaller and lighter.

The solid-state sodium selenium batteries from NASA are able to withstand temperatures twice as hot as conventional lithium-ion batteries. In addition, they are less affected by changes in pressure.

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[โ€“] Snek@feddit.ch 2 points 2 years ago

Sounds promising for aircrafts or higher power systems, which have some stricter requierments. Not sure if it is really better in regards of mining/refining.