New Nanoscale supercapacitor can store 100 times more energy

Electrostatic nanocapacitors formed in nanoporous anodic aluminum oxide (darker yellow) film by sequential atomic layer deposition of metal (blue), insulator (yellow), and metal. (Image credit: A. James Clark School of Engineering, U-Md.)

Article Summary

It has been a big week for news on advances in energy storage technology. We recently reported on new research that makes a Lithium Ion battery perform more like a supercapacitor, now we can report on research on a supercapacitor that performs more like a battery. Researchers at the University of Maryland and the Korea Advanced Institute of Science and Technology have developed a supercapacitor with 10 billion nanoscale capacitors per square centimeter, giving it 250 times greater surface area than that of a conventional capacitor of comparable size. The Nano Supercapacitor is being developed primarily as part of a hybrid battery-capacitor system for electric cars.

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