It seems that the latter managed to come up with the necessary technology to juice up batteries used in vehicles such as the Nissan Leaf and Mitsubishi iMiEV in a record time of a mere ten minutes. This would definitely go a long way in pushing public acceptance of electric vehicles, which traditionally are hindered by sluggish charge times. How did they discover the breakthrough? Well, it was discovered that by changing the electrode inside a capacitor from carbon to tungsten oxide and vanadium oxide, the ability to retain power is improved, taking all of just ten minutes to juice up a particular battery with no significant effect on storage capacity or voltage.