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Title:
METHOD FOR PRODUCING ELECTROCHEMICAL CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2000/031764
Kind Code:
A1
Abstract:
A method for producing an electrochemical capacitor, comprising fabricating a unit cell by housing an electrode assembly made up of a polarizable electrode made chiefly of a partially oxidized carbonaceous material containing crystallite carbon analogous to graphite, a separator, and a collector, and an organic electrolyte in a cell container, fabricating a first electrochemical capacitor by housing either the unit cell or an assembly of such unit cells in a first capacitor container, subjecting the first electrochemical capacitor to charging/discharging cycles until the maximum value of the stress produced by the volume expansion of the polarizable electrode while the capacitor is charged becomes substantially constant, and fabricating a second electrochemical capacitor by transplanting either the unit cell or the assembly of the unit cells from the first capacitor container into a second capacitor container after the maximum value of the stress becomes substantially constant, whereby the capacitor container hardly deforms plastically, and the electrochemical capacitor is excellent in durability and reliability.

Inventors:
Niiori, Yusuke (Sunhouse Inuyama 4A 114, Maruyamatenpaku-cho Inuyama-city Aichi, 484-0072, JP)
Katsukawa, Hiroyuki (62 Aza Inaba, Ohaza Takagi Fuso-cho Niwa-gun, Aichi, 480-0107, JP)
Yoshida, Hitoshi (16-4, Shimizuda Kakemachi Okazaki-city, Aichi, 444-0011, JP)
Application Number:
PCT/JP1999/006494
Publication Date:
June 02, 2000
Filing Date:
November 19, 1999
Export Citation:
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Assignee:
NGK INSULATORS, LTD. (2-56, Suda-cho Mizuho-ku Nagoya-city, Aichi, 467-8530, JP)
Niiori, Yusuke (Sunhouse Inuyama 4A 114, Maruyamatenpaku-cho Inuyama-city Aichi, 484-0072, JP)
Katsukawa, Hiroyuki (62 Aza Inaba, Ohaza Takagi Fuso-cho Niwa-gun, Aichi, 480-0107, JP)
Yoshida, Hitoshi (16-4, Shimizuda Kakemachi Okazaki-city, Aichi, 444-0011, JP)
International Classes:
H01G11/22; H01G2/04; H01G9/00; H01G11/00; H01G11/10; H01G11/14; H01G11/32; H01G11/58; H01G11/82; H01G11/84; H01G11/86; (IPC1-7): H01G9/155; H01G9/058; H01G9/12
Foreign References:
JPH07201674A1995-08-04
JPH1041199A1998-02-13
JPH10242009A1998-09-11
JPH0722295A1995-01-24
JPH11121305A1999-04-30
JPH10106524A1998-04-24
Attorney, Agent or Firm:
Watanabe, Kazuhira (3rd fl. No.8 Kikuboshi Tower Bldg. 20-18, Asakusabashi 3-chome Taito-ku, Tokyo, 111-0053, JP)
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