Activated carbon material, process for producing the same and electric double layer capacitor employing the same
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United States of America Patent
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Dec 7, 2004
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N/A
app pub date -
Dec 30, 2002
filing date -
Jun 27, 2000
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Expired
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Abstract
A carbonaceous material which has a total pore volume of from 0.3 to 2.0 cm.sup.3 /g per unit mass, a volume of micropores having diameters of from 10 to 20 .ANG. of from 10 to 60% based on the total pore volume, a volume of mesopores having diameters of from 20 to 200 .ANG. of from 20 to 70% based on the total pore volume, a volume of macropores having diameters exceeding 200 .ANG. of not more than 20% based on the total pore volume, and a specific surface area of from 1,000 to 2,500 m.sup.2 /g.
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