Electrode for Electric Double Layer Capacitor and Electric Double Layer Capacitor
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Jun 9, 2006
filing date -
Jun 10, 2005
priority date (Note) -
Abandoned
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Abstract
Disclosed is an electric double layer capacitor that comprises: a polarizable electrode containing a carbon material having graphite-like microcrystalline carbon; and an electrolyte containing a spiro compound represented by the general formula represents a counter-anion). According to the present invention, an electric field activation type electric double layer capacitor can be obtained that simultaneously achieves improved volumetric capacitance density, improved resistance, and improved withstand voltage.
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