This would kill the electric car before it is even put to use or made available for sale. The man who invented the car makes a good point by saying the typical electric care requires a lot of money in infrastructure (electric powering stations) in order to recharge the car. With this all one needs is a bottle of any kind of water.
I remember from college physics and chemistry making Hydrogen and Oxygen by sending a small amount of electricity through water. The gases separated and could be used for whatever reason. Seems like this is what is being done here...I only wonder why this was not done long ago not only for cars, but for homes, planes, trains etc etc... leave it to the Japanese to get it going.