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Basically, the battery has a lithium (Li), sodium (Na), or potassium (K) metallic anode, a solid glass electrolyte, and an "ink" cathode of sulfur (S8), ferroce
by logfromblammo 10y ago
Basically, the battery has a lithium (Li), sodium (Na), or potassium (K) metallic anode, a solid glass electrolyte, and an "ink" cathode of sulfur (S8), ferrocene (Fe(C5H5)), or manganese oxide (MnO2) on a copper (Cu) current collector.
So it's not entirely solid. The cathode may have a tiny bit of liquid electrolyte between the glass and the copper.
View a helpful diagram at http://www.greencarcongress.com/2016/12/20161213-braga.html http://www.greencarcongress.com/2016/12/20161213-braga.html .
- gravypod 10y agoI'm not a materials guy but can this "shatter"? What does this mean for applications that need IP67, battery compartment stabilization?
- logfromblammo 10y agoI would guess that microfractures in the glass would impede the movement of charge carriers, even if it didn't shatter outright. It wouldn't be good for the battery to hit it with a hammer, I think, but that really applies to any high-energy-density battery. Not all glasses are created equal, either. It all depends on the composition and the cooling regime. Some glasses can shrug off small-caliber bullets, and others will crumble under your fingertips.