Imagine a simple, durable energy storage system that can deliver more than a thousand watts of power per kilogram. Imagine that it can be charged and discharged far faster than any battery. Now imagine being able to bend and twist it.

WISE's Aiping Yu and her chemical engineering team have created a supercapacitor with energy densities and storage capabilities several orders of magnitude greater that those of conventional capacitors. And, yes, squeeze it between your thumb and forefinger and…