Been busy with other stuff for a while.
I am also intrigued by the Aquion battery technology.
In general, a very interested in any sort of "home brew" battery tech. Wish we could come up with a battery equivalent of the Keith Gasifier.
My thoughts are that battery technology is the Achilles heel of almost all alternative energy systems.
For off-grid applications, we are less interested in bulk/weight vs. cost, reliability & longevity.
You know those big plastic tanks in a metal cage? Like round-up and other agricultural chemicals come in? I think they are around 275 gallons or so. I can get those free or very cheap.
Would make a heck of a stationary liquid cell.
You could make some monster lead-acid cells that way.
I bought a book on lead-acid battery construction.
Unfortunately, the cost of the lead is still very significant, and then you have the "mess" issue.
Interested in learning more about salt water cells.
Even if energy density isn't the best, wouldn't matter so much in stationary applications.