ELECTRODE MATERIAL AND METHOD FOR PRODUCING THE SAME

Title:

ELECTRODE MATERIAL AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2000/011688

Kind Code:

A1

Abstract:

An electrode material suitable for high capacitance and large-current discharge and used for electric double layer capacitors and cells is characterized in that a very sharp pore size distribution is displayed in a mesopore region, and the volume of pores having pore sizes of X ± $g(a) nm (3.0$m(F)X$m(f)10, $g(a) = 1.0: the distribution range of pore size) accounts for more than 15 % of the total volume of mesopores having pore sizes ranging from 2.0 to 50 nm. The electrode material is produced by adding at least one kind of a transition metal and its compound to a carbonaceous material or a carbon precursor and heating the mixture to 600 °C or more.

Inventors:

SAKATA YUSAKU (JP)
MUTO AKINORI (JP)
IBARAKI SATOSHI (JP)
KOJIMA KENJI (JP)
MARUMO CHISATO (JP)
SHIOMI NIRO (JP)

Application Number:

PCT/JP1999/004541

Publication Date:

March 02, 2000

Filing Date:

August 23, 1999

Export Citation:

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Assignee:

KANEBO LTD (JP)
SAKATA YUSAKU (JP)
MUTO AKINORI (JP)
IBARAKI SATOSHI (JP)
KOJIMA KENJI (JP)
MARUMO CHISATO (JP)
SHIOMI NIRO (JP)

International Classes:

H01G9/00; H01G11/24; H01G11/30; H01G11/34; H01M4/58; H01M4/583; H01M4/96; H01M4/02; H01M4/587; H01M12/08; (IPC1-7): H01G9/058; H01M4/96; H01M12/08

Foreign References:

JPH05139712A	1993-06-08
JPH07161588A	1995-06-23
JPH10172870A	1998-06-26
JPH08119614A	1996-05-14
JPH06503924A	1994-04-28
JPS498753A	1974-01-25
JPH0967112A	1997-03-11
JPS5512972A	1980-01-29
JPH10335189A	1998-12-18
JPH10149958A	1998-06-02
JPH09275042A	1997-10-21
JPH04163320A	1992-06-08

Other References: