Waiting for a genius

I'm waiting for a genius to invent the low cost high capacity power cell. A battery that can store a large amount of power and not cost very much to make. I think the cost of the battery is the only thing that is holding back electric cars. If someone invents the low cost high capacity power cell, I will hang their picture on my wall. 

If financing and recharging an electric car cost less than £150 per month then I would still save money. Refilling a full tank costs me £40 every week at the moment, that is £160 per month. 

That is what I do now, I look for an electric car that costs less than £150 to run per month. Plus there are fewer parts to go wrong and no road tax ; electric car drivers don't pay road tax in the UK.