Posted in: Technology

Graphene Batteries Offer 5-Second iPhone Charging

Graphene Batteries Offer 5-Second iPhone Charging

Researchers at UCLA have discovered a way to make graphene batteries that charge super fast, are inexpensively produced, are non-toxic, and that blow current battery technology out of the water in terms of efficiency and performance.

An iPhone powered by a graphene supercapacitor could charge in five-seconds. A MacBook powered by a graphene supercapacitor could charge 30-seconds. Electric cars powered by the technology could be charged as quickly as filling a car with a tank of gas.

The new energy technology was developed by Richard Kaner, a member of the California NanoSystems Institute at UCLA where he is also a professor of chemistry and biochemistry. Working with Maher El-Kady, a grad student, the scientists invented a way to produce micro-scale graphene-based batteries using a standard LightScribe DVD burner.

“To label discs using LightScribe, the surface of the disc is coated with a reactive dye that changes color on exposure to the laser light. Instead of printing on this specialized coating, our approach is to coat the disc with a film of graphite oxide, which then can be directly printed on,” Kaner said. “We previously found an unusual photo-thermal effect in which graphite oxide absorbs the laser light and is converted into graphene in a similar fashion to the commercial LightScribe process. With the precision of the laser, the drive renders the computer-designed pattern onto the graphite oxide film to produce the desired graphene circuits.”

The micro-supercapacitors created by Kaner and El-Kady are highly bendable and twistable and will be ideal for future flexible displays, e-paper, and wearable electronics.

Graphene batteries sound almost too good to be true. In addition to super fast charging, they don’t have any negative environmental impact. They are biodegradable and even compostable.

“We are now looking for industry partners to help us mass-produce our graphene micro-supercapacitors,” Kaner said.

[UCLA Newsroom Press Release]

This video released last December features Kaner and El-Kady demonstrating how they make their graphene batteries and how they work.

Articles And Offers From The Web

Comments

6 Responses to “Graphene Batteries Offer 5-Second iPhone Charging”

  1. Brian Krassenstein

    Amazing. Just think what king of battery tech there will be 10 years down the line. Batteries are the solution to a ton of green technology. Solar Power/wind power (Storage is the main problem), electric cards (Charging and battery weight/size are the main issues).

  2. Anonymous

    Supercaps are great, but they're hardly new, nor are they going to replace batteries any time soon. Supercaps (even this new variety) are still orders of magnitude away from Li-ion batteries in terms of storage capacity per weight or per unit volume. They've also been extremely expensive compared to batteries, and I bet this new flavor still is.

    Sure, they have their upsides, but we need to discuss the drawbacks of any new technology as well as its benefits. Don't fall for the hype without some critical analysis.