In northern Switzerland, a construction team is hard at work excavating a hole in the ground that will end up being over 88 ft (27 m) deep, and spanning the length of two soccer pitches. This pit will be home to Switzerland's first redox flow battery for storing clean energy – and it'll be the most…
I mean, you COULD just have a massive membrane area. They won’t, cause that’d be crazy, but you could.
True, but that would kind of defeat the purpose of it being a flow battery, I think.