DVD writer spins out graphene electrodes for new class of supercapacitor
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A schematic drawing of a supercapacitor, or electric double layer capacitor (Image: NASA)
Schematic showing the structure of laser scribed graphene supercapacitors created by UCLA researchers (Image: UCLA)
The wonders of graphene seem to know no bounds. Not only is it one of the strongest materials known, is both highly conductive and piezoelectric, it can generate electricity from flowing water and now it is being used to make better supercapacitors. Using a DVD writer, a team of UCLA researchers has invented a new process for making high quality graphene electrodes and used these electrodes to make a new species of supercapacitor. Though the work is in the early stages of development, it could lay a foundation for supercapacitor-based energy storage systems suitable for flexible portable electronic devices.
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