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К вопросу о хранении энергии

March 22, 2009

Current commercial supercapacitors range from 0.5 to 30 wh/kg, while the research is in its early stages, if they reach their claim of a 100 increase that will result in 3000 wh/kg. For comparison, a conventional lead-acid battery is typically 30 to 40 wh/kg and modern lithium-ion batteries are about 160 wh/kg. In automobile applications gasoline contains around 12,000 wh/kg, which operates at 15% tank-to-wheel efficiency giving an effective energy density of 1800 wh/kg

December 7, 2010
Graphene-based supercapacitor hits new energy storage high

Specific energy density of the new capacitor (a measure of how much electricity can be stored per weight) has been measured at 85.6 Wh/kg at room temperature and 136 Wh/kg at 80 degrees Celsius (176 F), which is comparable to Ni-mh batteries. These are the best values for electric double layer supercapacitors based on carbon nanomaterials recorded to date.


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