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Batteries (storage technology) |
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evaluated |
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Batteries (or accumulators) are electrochemical energy storage devices used for a wide variety of purposes. Compared to other storage devices batteries have very high energy densities, but low power density and therefore high charging times. Some modern high performance batteries do however reach power densities that are promising for braking energy storage in automotive and (to a smaller extent) railway applications.
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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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Overall rating
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Overall potential: interesting |
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Time horizon: long-term |
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Batteries will only become an option for brake energy storage on rail vehicles if clear performance advances are achieved. Presently flywheels and double-layer capacitors are the more promising options. |
date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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