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Double-layer capacitors (storage technology) |
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evaluated |
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Double-layer capacitors (also termed "supercapacitors" or "ultracapacitors") store energy in the electric field of an electrochemical double-layer. The use of high surface-area electrodes results in an extremely large capacitance. The power and energy densities make capacitors an option for brake energy storage in rail vehicles.
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Technology field: Regenerative braking and energy management
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General information
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General criteria
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Environmental criteria
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Economic criteria
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Application outside railway sector
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Status of development outside railway sector: prototype |
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Montena is realizing in collaboration with the University of Applied Science of Central Switzerland and other partners, a minibus based on the combination of a combustion engine with an electric power train involving a BOOSTCAP, a double-layer capacitor by Montena. |
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Time horizon for broad application outside railway sector: in 5 - 10 years |
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(no details available) |
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Expected technological development outside railway sector: highly dynamic |
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Cf. Technological potential outside railway sector |
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Market potential outside railway sector: medium |
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According to the Paumanok Supercapacitor Market Survey 1999/2000, the world market for double-layer capacitors was estimated to increase up to 500 Mio US$ within the next 5 years (i.e. by 2004/2005). |
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Overall rating
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date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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