Title:
DISASSEMBLING METHOD FOR SOLID ELECTROLYTE TYPE FUEL CELL
Document Type and Number:
Japanese Patent JP3758819
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a disassembling method for a solid electrolyte type fuel cell capable of separating and recovering each constituent member.
SOLUTION: In such condition that an air electrode 11 and a fuel electrode 13 are electrically connected at a high temperature, an oxidizing gas supply to the air electrode 11 is stopped and a surface of the fuel electrode 13 is exposed to a reducing gas atmosphere. By applying voltage forcibly to the electrodes, reducing reaction of the air electrode 11 in an interface between the electrode 11 and a solid electrolyte 12 is promoted to separate the solid electrolyte 12 from the air electrode 11. In addition, reducing reaction in the surface of the air electrode 11 is promoted by exposing the air electrode 11 to a reducing atmosphere of high temperature to separate a collecting material 14 fixed to the surface of the air electrode 11.
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Inventors:
Junichi Fujita
Shinji Takeuchi
Masakatsu Nagata
Masataka Mochizuki
Mikiyuki Ono
Riki Iwasawa
Namiko Kaneda
Shinji Takeuchi
Masakatsu Nagata
Masataka Mochizuki
Mikiyuki Ono
Riki Iwasawa
Namiko Kaneda
Application Number:
JP16622497A
Publication Date:
March 22, 2006
Filing Date:
June 23, 1997
Export Citation:
Assignee:
Kansai Electric Power Co., Inc.
Fujikura Ltd.
Fujikura Ltd.
International Classes:
H01M8/04; H01M8/12; H01M10/54; (IPC1-7): H01M8/04; H01M8/12; H01M10/54
Domestic Patent References:
| JP8171922A | ||||
| JP7085898A | ||||
| JP60003864A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Shunichi Takahashi
Iwa Saki Kokuni
Kawamata Sumio
Shunichi Takahashi