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Batteries (storage technology) |
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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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Status of development outside railway sector: in use |
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Nickel metal hydride batteries are already used for braking energy storage in hybrid-electric cars. |
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Time horizon for broad application outside railway sector: in 5 - 10 years |
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The first hybrid-electric cars are on the road but even if the concept proves attractive for customers, wide-spread diffusion will take some time. |
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Expected technological development outside railway sector: highly dynamic |
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Cf. technological potential in railways |
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Market potential outside railway sector: high |
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(no details available) |
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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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