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Graphene-Based
Supercapacitors Could Lead To
A Future Of Battery-Free Electric Vehicles Within 5 Years |
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Researchers have created a
supercapacitor film that could replace a battery within the next five years.
Scientists at Rice University and Queensland University of Technology
have collaborated to bring this future
technology.
The Graphene-Based
supercapacitor consists of two layers of graphene with an electrolyte layer in the middle. The film is
very strong, very thin, and has the
ability to release a large amount of energy in a short amount of time, which is
essential to its success/ properties.
The supercapacitor film could be integrated into
many different areas of a vehicle, such as the
floor, doors, walls, etc.
"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.”
The supercapacitor film would be able to be fully charged in a
few minutes, versus several hours it takes for a conventional battery.
"In the future, it is hoped the supercapacitor will be developed to store more energy than a Li-Ion battery while retaining the ability to release its energy up to 10 times faster - meaning the car could be entirely powered by the
supercapacitors in its body panels,” added co-author Jinzhang Liu. "After one full charge, this car should be able to run up to 500km (310 miles) - similar to a petrol-powered car and more than double the current limit of an electric car.”
"The price of Li-Ion batteries cannot decrease a lot because the price of Lithium remains high. This technique does not rely on metals and other toxic materials either, so it is environmentally friendly if it needs to be disposed of,” explained lead researcher Nunzio Motta.
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