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   Double-layer capacitors (storage technology)  evaluated  
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
Attachments:
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