Graphene-Based Supercapacitors Could Lead To Battery-Free Electric Cars Within 5 Years

[TexasProgresive]

4. I don't think the author of the article has it right

This quote from Notarianni does not suggest that these "supercapacitors" will replace batteries, but will complement them allowing for fast discharge of power for high acceleration.

"Vehicles need an extra energy spurt for acceleration, and this is where supercapacitors come in. They hold a limited amount of charge, but they are able to deliver it very quickly, making them the perfect complement to mass-storage batteries," Marco Notarianni of QUT said in a press release. Notarianni was lead author of the Nanotechnology paper. "Supercapacitors offer a high power output in a short time, meaning a faster acceleration rate of the car and a charging time of just a few minutes, compared to several hours for a standard electric car battery.”