28 Sep '15, 3pm

How a Microscopic Supercapacitor Will Supercharge Mobile Electronics

How a Microscopic Supercapacitor Will Supercharge Mobile Electronics

The result is a marvelously compact, two-dimensional device that can be integrated directly with silicon circuitry. By contrast, today’s computer motherboards require complex interconnects between the electronics and the backup power supply, typically a coin-size lithium battery that keeps memory alive when system power is off. And because they can be integrated on-chip, these microsupercapacitors could make it easier to extract energy from mechanical, thermal, and solar sources. For instance, they could be fabricated on the backs—literally—of solar cells to store power generated during the day for use after sundown. Typical practice today is to use batteries for this application, but supercapacitors would be better because they can extract charge much more efficiently and with minimal losses. In addition, integrated supercapacitors can simplify the external wiring used in...

Full article: http://spectrum.ieee.org/semiconductors/materials/how-a-m...

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