PROCESS FOR PRODUCING ACTIVATED CARBON FOR ELECTRIC DOUBLE LAYER CAPACITOR ELECTRODE

Title:

PROCESS FOR PRODUCING ACTIVATED CARBON FOR ELECTRIC DOUBLE LAYER CAPACITOR ELECTRODE

Document Type and Number:

WIPO Patent Application WO/2009/005170

Kind Code:

A1

Abstract:

This invention provides a process for producing an activated carbon for an electric double layer capacitor electrode, which can produce an activated carbon free from fusing of carbon particles during activation and having a small particle diameter, a uniform particle diameter, and a relatively large specific surface area, in an easy and cost-effective manner on a commercial scale. The production process comprises firing an easily graphitizable carbon material so that the reduction in hydrogen/carbon atom ratio (H/C) of the carbon material after the firing treatment is not less than 4%, or the reduction in volatile compound content is not less than 5%, and then activating the carbon material to produce an activated carbon for an electric double layer capacitor electrode having an average particle diameter of 0.5 to 7 μm and a BET specific surface area of 1500 to 3000 m2/g.

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Inventors:

FUJII MASAKI (JP)
TAGUCHI SHINYA (JP)
IKAI KEIZO (JP)
KATO HIROSHI (JP)
IGARASHI KAZUHIRO (JP)
KIUCHI NORIYUKI (JP)
NAKAMURA TSUTOMU (JP)
TAKESHITA KIWAMU (JP)

Application Number:

PCT/JP2008/062433

Publication Date:

January 08, 2009

Filing Date:

July 03, 2008

Export Citation:

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Assignee:

NIPPON OIL CORP (JP)
FUJII MASAKI (JP)
TAGUCHI SHINYA (JP)
IKAI KEIZO (JP)
KATO HIROSHI (JP)
IGARASHI KAZUHIRO (JP)
KIUCHI NORIYUKI (JP)
NAKAMURA TSUTOMU (JP)
TAKESHITA KIWAMU (JP)

International Classes:

H01G9/00; C01B31/12; H01G11/34

Foreign References:

JPH10199767A	1998-07-31
JP2007115749A	2007-05-10
JP2000182904A	2000-06-30
JP2006324183A	2006-11-30
JP2000294416A	2000-10-20

Other References: