I think the 'Edison Battery' is nickel-iron, whereas Prof. Allen is shooting for 'iron-iron' or something similar. So there is a difference. In any event, it appears to be worth watching. We donated $25.00 to the effort.
2017 Leaf S with Chademo and 30 kWh battery for $19 per month:
http://www.myimiev.com/forum/viewtopic.php?f=5&t=3263&start=30#p31902
And: https://sfbay.craigslist.org/eby/ctd/6001057820.html