A Japanese research institute is working on a new type of capacitor with a much larger energy storage capacity than conventional models.
The capacitor Prof. Okamura developed with JEOL engineers last October features already 88 watt-hours of mass energy density per kilogram, about 10 times that of conventional capacitors.
Unlike batteries, capacitors do not degrade over time and they charge much quicker. They could become a next-generation power supply that replaces batteries in the future.
Full Story appeared in The Nikkei Business Daily Friday edition.
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