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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. |
Technology field: Regenerative braking and energy management |
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References / Links: Avart, Chabas 2001; Caputo 2000; Charvet 2001; Hennig, Stephanblome 2000; Kötz, Carlen 2000; Schneuwly et al. 2002 |
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Related projects: Studies performed on energy storage systems; THALES: hybrid tram train with on-board ultracapacitors |
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date created: 2002-10-09 |
© UIC - International Union of Railways 2003 |