edit I am an idiot, who uploaded the image link as the URL. The original source should now be accessible
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.
From what the article said, most definitely not. But, it doesn’t look very complex in terms of scaling / manufcaturing it and they say they want to get it to market quickly.