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Cheap proton batteries compete with lithium on energy density
半岛新闻网2024-09-21 22:26:23【资讯】0人已围观
简介RMIT engineers say they've tripled the energy density of cheap, rechargeable, recyclable proton flow
RMIT engineers say they've tripled the energy density of cheap, rechargeable, recyclable proton flow batteries, which can now challenge commercially available lithium-ion batteries for capacity with a specific energy density of 245 Wh/kg.
That's as compared to the ~260-odd Wh/kg delivered by the lithium-ion batteries in a current Tesla Model 3 battery pack, but without using any lithium, thus avoiding a forecasted lithium squeeze, as well as geopolitically sensitive dependence on China in the battery supply chain, and all kinds of end-of-life issues.
We've covered this particular team's work before, way back in 2014, when the first proof of concept of a hydrogen-based proton flow battery was announced.
Essentially, it's a different way of using hydrogen for energy storage. The proton battery works something like a reversible fuel cell, accepting water while charging, splitting out positively-charged hydrogen ions and releasing oxygen.
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