Title:
【発明の名称】燃料電池の運転方法
Document Type and Number:
Japanese Patent JP2558636
Kind Code:
B2
Abstract:
PURPOSE:To make it possible to maintain a stable three-phase inter face at the electrode, by operating with converting the density of the electrolyte in an electrolyte layer at a lower temperature when the cell operation is stopped and at the high temperature when the cell is operating. CONSTITUTION:At a lower temperature when the operation of a fuel cell is stopped, the temperature is lowered while lowering the density of a phosphoric acid electrolyte, for example, to a specific density. At a higher temperature when the operation is carried out, the temperature is raised while raising the density of the phosphoric acid electrolyte to a specific density. In this case, the regulation of the density of the phosphoric acid electrolyte is made by a liquid fed to the phosphoric acid electrolyte. Therefore, the volume variation of the phosphoric acid electrolyte owing to the temperature variation with the operation and the pause of the fuel cell can be prevented, and a stable three-phase interface can be maintained at the electrode constantly.
Inventors:
AOKI TSUTOMU
Application Number:
JP12633386A
Publication Date:
November 27, 1996
Filing Date:
May 31, 1986
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H01M8/04; (IPC1-7): H01M8/04
Domestic Patent References:
| JP59207564A | ||||
| JP58164162A |
Attorney, Agent or Firm:
Takehiko Suzue (2 outside)