cross-posted from: https://sopuli.xyz/post/1726805
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.
According to the source, it's different in that it stores the hydrogen before it combines to H2, reducing energy waste to the point that it's feasible to treat it as rechargeable instead of single-use. Lithium equivalent instead of alkaline.
https://newatlas.com/energy/rmit-proton-battery-energy-density/