Carbonaceous material, its production process and electric...

Details Carbonaceous material, its production process and electric... Carbonaceous material, its production process and electric...

2005-03-08

2005-03-08

Langel, Wayne A. (Department: 1754)

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

C029S025030, C264S105000, C423S44500R, C502S416000

Reexamination Certificate

active

06865068

ABSTRACT:
A carbonaceous material having a total pore volume of from 0.5 to 1.5 cm3/g per unit mass, a volume of micropores having diameters of from 10 to 20 Å of from 10 to 45% based on the total pore volume, a volume of mesopores having diameters of from 20 to 200 Å of from 35 to 65% based on the total pore volume, a volume of macropores having diameters exceeding 200 Å of not more than 15% based on the total pore volume, and a specific surface area of from 1,000 to 2,500 m2/g. The carbonaceous material is incorporated into an electric double layer capacitor to provide increased capacitance.

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U.S. Appl. No. 09/517,579, filed Mar. 2, 2000, pending.

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