Nairda June 9, 2014 09:16 AM Silver and aluminum are abundant. Adoption of a safe system of swapping out plates and water at the service station seems straightforward. Pollution if any is negligible. Density of energy release is a matter of configuration so it can't be a limitation. So how is it that this got out of the bag into public domain and not shelved like all the other great ideas? BigGoofyGuy June 9, 2014 09:47 AM I think this is way cool and way green. I doubt having to stop every couple of hundred miles would be a big problem. I know I am unable to travel that far without having to stop to stretch my legs. Nairda, I don't know how it got out into the public domain but I am glad it did. VirtualGathis June 9, 2014 01:06 PM I'm curious what they energy return is. It costs energy to produce all the consumables. Aluminum for instance is very energy intensive to convert from ore to metal. If you look here the process is quite involved and produces toxic by-products. I think thsi is quite telling "One pound of aluminum requires 6-8 kilowatt-hours of electrical energy" They claim 6-8KWh/kg above, 1kg~=2.2lbs, so if that Kg is only the aluminum it is using a minimum of 12.5KWh/Kg. They are not very clear though so it might be slightly more efficient. Over all without rechargability I give this a great big yawn. Not green due to inefficiency and toxic by products, only marginally useful due to complexity of replacement. You'd be better off buying a small trailer and a deisel generator set to optimal output and using that as the range extender than this thing. Slowburn June 9, 2014 08:02 PM If they make the battery so that it eats aluminum foil that is unrecyclable any way it could be a way to power your overly expensive car. Mel Tisdale June 10, 2014 10:41 AM "The company claims that travel distances, purchase prices and life-cycle costs would be comparable to petrol-powered vehicles" Is that comparison based on today's prices, or those soon to be upon us as the easy oil runs out completely and we are up against tar sands and shales as our sources, with their poor EROEI figures? If today, then this technology will be much in demand. Of course, we must not forget that that any hybrid vehicle is going to need copper for its wiring, which is getting ever more expensive to extract with a ore now running at between 0.3% to 0.6% copper. It is difficult to see just how we are going to power our heavy goods vehicles and farm equipement that we so badly need grow and distribute in order to feed the ever expanding population. owlbeyou June 10, 2014 11:42 AM Living in Montreal, the winters get cold here, so what happens if the water in the battery freezes? One of the biggest challenges is to design battery technology that isn't adversely affected by freezing temps. myale June 10, 2014 12:24 PM A bit lax on actual detail of the energy cost to make the battery verus what you can get out of it. rdp June 10, 2014 12:44 PM I trust everyone noticed the statement that "the battery plates are not rechargeable" -- this is a single use battery. Once it runs down, you have to replace it. As a range extender, you'd want to use it very sparingly... CaptD June 10, 2014 01:30 PM The most exciting thing about this battery article, is that it points out that we are just beginning to see what the future holds for electric vehicles as both electric motors and battery technology evolve now that scientists now have access to R&D funds in amounts never before possible when gasoline and diesel were the only options to power vehicles. With modular batteries, eVehicle owners will be able to replace old batteries with much better, more powerful batteries as they are developed, which will make owning an eVehicle an even better investment since they will hold their value far longer! Here is just a sample: http://evobsession.com/tesla-roadster-get-upgrade-later-year/ Tesla would be very smart to offer these upgrades because then all their eVehicles would be far more valuable since their owners would then have an upgrade path that would allow the use of better batteries, better tech and other "upgrades" that the owners of these eVehicles might want. Tesla would again set the standard/bar much higher since no other Manufacturer does this and this alone would be yet another reason to only buy a Tesla… ADVENTUREMUFFINffin June 10, 2014 01:43 PM VirtualGathis is correct, a good review of the Life cycle costs of the battery, including removing the oxides and re-smelter, would show this idea to be a net energy looser. Gizmag would benefit if it added a bit more balanced review of these ideas, rather than simply reshare the company's advertising.