Capacitors use electric fields (rather than chemical changes, motion, or potential energy) to store energy, and charge and discharge faster than batteries. Ratings are usually in Farads (Coulombs per Volt).

Related categories 3

All About Circuits - Capacitors
An introduction to capacitors. Theory, pictures, links to other parts of a web-book of electrical theory.
Capacitors: What Good Are They?
Short description of a fundamental capacitor, and units used to measure capacitance. Illustrations of capacitors in electronic circuits, with animation.
Supercapacitor
Wikipedia entry includes picture, history, applications, Ragone plot, diagram, links, and current state.
UltraCapacitors and SuperCapacitors
Information on how an ultracapacitor works, manufacturers, uses, and links to news.
Ultracapacitors Challenge the Battery
article written by chair of group devoted to promoting ultracapacitor technology includes web addresses of makers.
The Charge of the Ultra - Capacitors
Nanotechnology takes energy storage beyond batteries [IEEE Spectrum] (November 15, 2007)
The Dark Horse in the Race to Power Hybrid Cars
Are ultracapacitors the key to making hybrids king of the auto market? [Scientific American] (August 28, 2007)
Maxwell Licenses Ultracapacitor Technology To Shanghai Group
to enhance reliability and efficiency of electric power infrastructure. (April 20, 2006)
Green Car Congress: Holden (GM) and CSIRO Working on Next-Gen Supercaps
Australian groups partnering on components for electric vehicles. (November 19, 2004)
[Electrical Mozilla]
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January 21, 2017 at 2:24:25 UTC
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