Researchers at UCLA have used a standard LightScribe DVD optical drive to produce electrodes that not only maintain high conductivity but also provide higher and more accessible surface area than conventional ECs that use activated carbon electrodes.

The process is based on coating a DVD disc with a film of graphite oxide that is then laser treated inside a LightScribe DVD drive to produce graphene electrodes. The LSG supercapacitors could lead the way to ideal energy storage systems for next-generation flexible, portable electronics.

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Also: Learn about airbrush-fabricated carbon nanotube supercapacitor electrodes.