New Battery Technologies

On a small scale, problems with liquid batteries are fluid circulation and melting temperature of some elements/compounds used to make a given liquid. I give the researchers you reference a nod of approval and I am of the opinion that using microbes to generate electricity has interesting potential. I do believe that NEC have offered or are about to offer phones that use "liquid" batteries LINK and LINK

Liquid batteries are currently used in large scale at transformer stations using THIS model and are increasing in popularity for temporary backups/storage solutions. I believe that Tasmania is using this model for their wind generators on King Island.

I think the "zebra battery" has something to offer on a smaller scale and only if energy waste issues are addressed.. The flow battery does too if someone can come up with a solution that does not require hundreds of liters of liquid.

Your reference to the two links is I suspect, research into alternatives to what is currently being used. Have a look at GOOGLE

Zn Br flow battery shows promise.

Apparently MWHr installations are feasible.

The key to use of alternative energy is improved energy storage.

Energy density needs a big boost, but at an affordable price.

This link leads to more info on ZBB ZN/Br battery but is not the one I was looking for which details an installation in Australia of, I think, some MWHr size.

http://www.electricitystorage.org/tech/technologies_technologies_znbr.htm