It will be interesting to see if they can get them from small scale tab stuff up to full size batteries big enough to actually do something with. The fact that they are 3 yrs behind the chinese as far as
lithium sulfur batteries makes their patent idea a bit of a laugh. The Chinese use lithium sulphur batteries in their bus fleets, up to 30,000Ah cells with a standard charge/discharge rate of 1C. They are 310kg each though, so not quite
boat batteries, but they do make 600Ah units. Check out Winston LSP batteries.