Title:
SOLID ELECTROLYTE TYPE FUEL CELL
Document Type and Number:
Japanese Patent JP3160993
Kind Code:
B2
Abstract:
PURPOSE: To provide a fuel cell having long cycle-life, which is superior in its efficiency and durability, by using Ba-Ce-O mixed ionic conductive oxide having proton conductivity and oxide ionic conductivity for a solid electrolyte.
CONSTITUTION: A material such as perovskite oxide, the composition formula of which is BaCe1-xGdxO3-α (1>x>0, 1.5>α>0), is used for a solid electrolyte. In this way, the durability and cycle life of a fuel cell is improved because this fuel cell can be operated efficiently at temperature below 850°C and non- ceramic materials such as metals can be used as constitutive materials for such as an air electrode and a fuel electrode of the fuel cell main body, and as peripheral materials and structural materials for such as a bipolar plate, an interconnector and a manifold. It is desirable that the values of x in the composition formula are 0.23-0.16, and the range of the operation temperature is 650-850°C.
Inventors:
Noboru Taniguchi
Kazuhito Hato
Junji Niikura
Koji Gamo
Eiichi Yasumoto
Kazuhito Hato
Junji Niikura
Koji Gamo
Eiichi Yasumoto
Application Number:
JP3310192A
Publication Date:
April 25, 2001
Filing Date:
February 20, 1992
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
C01F17/00; C04B35/50; H01B1/06; H01M8/02; H01M8/12; (IPC1-7): H01M8/02; C01F17/00; H01M8/12
Other References:
Ｓｏｌｉｄ Ｓｔａｔｅ Ｉｏｎｉｃｓ ３５［１／２］（１９８９）（米）ｐ．１７９−１８８
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)