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Usable membrane-less version of flow battery IS the breakthrough. Still, that article didn't even mention that. Membrane is the weak point of the technology, it
by out_of_protocol 10y ago
Usable membrane-less version of flow battery IS the breakthrough. Still, that article didn't even mention that. Membrane is the weak point of the technology, it's expensive and with limited resource.
P.S. Technology of flow batteries is very promising (at least for consumers with size down to cars) but the article is not.
Wiki so much better: https://en.wikipedia.org/wiki/Flow_battery https://en.wikipedia.org/wiki/Flow_battery
- heisenbit 10y agoMy understanding of the chemistry is that they are using Vanadium Chloride which is not listed in the Wikipedia article. What is mentioned in Wikipedia are membrane cost/stability issues with Bromide. I could imagine the latter is more reactive but I'm definitely not a chemistry buff. Their view of the chemistry: > using a molecule developed at the Pacific Northwest National Laboratory. PNNL’s breakthrough was to introduce hydrochloric acid into the electrolyte solution, What I found also newsworthy is that the largest battery soon will be China with 800MWh. That is a typical US nuclear reactor providing power for 1 hour - nothing to sneeze at. What is also newsworthy is the cost which is also an indication that they got some handle on membrane cost. They are claiming 5cent/kWhr which would be a game changer as it is lower than generating it.