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Jülich, ORNL researchers advance high energy density iron-air batteries

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When it comes to volumetric energy density, iron–air batteries could perform even better with 9,700 Wh/l—almost five times higher than today’s lithium-ion batteries (2,000 Wh/l). Iron–air batteries are thus particularly interesting for a multitude of mobile applications in which space requirements play a large role.

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