22 April 2009—The field of printable electronics has taken off in recent years, with researchers touting prototype wearable sensors, smart packaging labels, and even solar cells made with printing technology. However, little advancement has been made in developing printable, flexible energy-storage devices, such as supercapacitors and batteries.
Now researchers from Stanford University and the University of California, Los Angeles, have built a flexible supercapacitor out of printable carbon nanotubes and polymer gel electrolyte. Their results were detailed this month in Nano Letters.
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