Peeking Inside A Working Capacitor | Chemical & Engineering News
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Web Date: August 5, 2014

Peeking Inside A Working Capacitor

Energy Storage: Imaging method tracks ion dynamics in real time
Department: Science & Technology
News Channels: Analytical SCENE, JACS In C&EN, Materials SCENE, Nano SCENE
Keywords: capacitors, energy storage, NMR, MRI, supercapacitor

A magnetic resonance imaging method for peering inside capacitors while they are charging and discharging is allowing researchers to scrutinize the ion dynamics that govern the operation and performance of these common electrical energy storage devices. The advance may lead to better understanding of the underlying charge-storage mechanism and eventually to improved capacitors.

Similar to batteries, capacitors store and deliver electrical energy. They typically store much less energy than a battery but deliver . . .

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