Electric double layer capacitor and method of manufacturing same
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United States of America Patent
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Jun 3, 2008
Grant Date -
Sep 28, 2006
app pub date -
Mar 23, 2006
filing date -
Mar 28, 2005
priority date (Note) -
Expired
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Abstract
An electric double layer capacitor and a method of manufacturing are provided that are capable of improving high-rate performance and increasing capacity at lower costs. The electric double layer capacitor includes: an electrode unit having a pair of polarizable electrodes, each composed of a carbon material, and a separator interposed between the pair of polarizable electrodes; and an electrolyte solution impregnated in the pair of polarizable electrodes and the separator. The carbon material of at least one of the pair of polarizable electrodes contains fullerene activated by a microwave activation process and/or carbon nanotube activated by a microwave activation process.
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