(19)
(11) EP 1 482 590 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION

(48) Corrigendum issued on:
23.02.2005 Bulletin 2005/08

(43) Date of publication:
01.12.2004 Bulletin 2004/49

(21) Application number: 04012598.1

(22) Date of filing: 27.05.2004
(51) International Patent Classification (IPC)7: H01M 8/24, H01M 8/02, H01M 8/12
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(30) Priority: 30.05.2003 JP 2003154557

(71) Applicant: Sanyo Electric Co., Ltd.
Moriguchi-shi Osaka (JP)

(72) Inventors:
  • Okamoto, Takashi
    Oura-gun Gunma 370-0533 (JP)
  • Taniguchi, Shunsuke
    Ota-city Gunma 373-0806 (JP)

(74) Representative: Glawe. Delfs. Moll 
Patentanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Solid oxide fuel cell, solid oxide fuel cell assembly, solid oxide fuel cell module, and solid oxide fuel cell power generator


(57) A shape and conductivity of a cylindrical porous metal substrate of low power collection losses are defined, and a solid oxide fuel cell of a high output or high start-up performance is provided by using the cylindrical porous metal substrate. In the solid oxide fuel cell of the invention, the cylindrical porous metal substrate which has a conductivity of 130 S/cm or more is used, and a power collecting section is connected to a position which does not exceed 100 cm from any place thereof. A first electrode, a solid electrolytic layer, and a second electrode are formed on a full periphery of the cylindrical porous metal substrate. Thus, it is possible to obtain a solid oxide fuel cell of easy cell formation and low power collection losses, i.e., high durability and a high output.