That is an interesting new technology. The models they are using will produce 2 volts so they will apparently use them in batches (much like those of us having dual 6 volt batteries) to generate the necessary voltages. An example of usage is where solar power might be stored, there is a limit to the number of times current flooded batteries can be discharged and recharged, I think in the low thousands. These can be charged and recharged in the tens of thousands.
Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'