Electric Car Batteries Could Get Lighter Thanks To New Material

Follow Antony

The Graphene Carbon Lattice

The Graphene Carbon Lattice

Enlarge Photo

Man-made carbon dioxide might be something we're trying to reduce, but on its own, carbon is an abundant and rather useful element.

It's also been central to two of the most important scientific materials discoveries of recent years--graphene, and carbon nanotubes.

The latter involves rolling the former--a one atom thick sheet of carbon atoms--into a cylinder, creating incredibly small but incredibly strong strands of carbon.

A new technology takes those tubes and weaves them into a new, incredibly strong and light substance, known as Aerographite.

Developed at Kiel University in Germany, it's now being described as the lightest material ever created, beating the previous nickel nanotubes. According to The Register, Aerographite is 75 times lighter than the same quantity of a typically light material like styrofoam.

What makes it so light? Partly, the relationship between its size and strength--put simply, you don't need much of the material to do the job you're asking of it. It beats the nickel nanotubes as carbon has a lower mass than nickel, and the tubes themselves can be porous, without losing strength.

Why should I care?

Cutting to the chase, Aerographite is yet another material that could see realistic use in batteries of the future.

Just as graphene has already been considered for batteries, Aerographite is stable and conductive, making it entirely suitable for use in the electrodes found in batteries. The high conductivity--and indeed high resilience--means batteries could be made considerably smaller and lighter without sacrificing performance.

What that means is that the large, heavy, solid objects required to power every electric car can be packaged much more tightly and contribute less to curb weight.

And that, as we've discussed in the past, means better performance, better handling and of course, better range.

If you're keeping track of future battery technologies, that's another one you can add to the list...


Follow GreenCarReports on Facebook and Twitter.

Follow Us

Comments (7)
  1. great. i know we will have large battery advances, and some stuff that we havent even thought about, will pop up.

    but this is indeed interesting.

    as i have stated from day 1, range issues will solve themselves, way before evs totally take over. that is of little concern to me.

    but how about price ? will this technology lead to a price decrease ? that is what we need most.

  2. Analysts can analyze all they want but few of them can predict the effect of technological break throughs. The battery is evolving faster then ever because demand is high.

  3. ditto that - need is the mother of invention

  4. Exactly, back when the electric car was invented we didn't realize we would want zero emissions and the ability to refuel (charge) at home. Now we want it and now it is obtainable and only getting better.

  5. Necessity is the mother of all inventions. Prior to having electric cars what would the demands for a lightweight li/ion battery be? I feel that the electric car will challenge battery makers to make lightweight yet durable batteries that can hold large charges such as 85KWhrs like the Tesla Model S has. Now just imagine being able to replace that heavy battery with one that weighs just half as much yet still holds as much charge.

  6. Advances like this need to be matched with enough publicity to show the general public just how viable electric cars are now, especially the Clarksons out there...

  7. More needs to be done to help bring down the environmental cost of actually producing these components; http://www.greensteve.com/241/buying-a-new-fuel-efficient-car-a-common-eco-error/

Commenting is closed for old articles.

Get FREE Dealer Quotes

From dealers near you

Find Green Cars


© 2015 Green Car Reports. All Rights Reserved. Green Car Reports is published by High Gear Media. Send us feedback. Stock photography by izmo, Inc.