Fuel cell manufacturing method and fuel cell

Details Fuel cell manufacturing method and fuel cell Fuel cell manufacturing method and fuel cell

2004-11-29

2009-11-03

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having earth feature

C429S006000, C429S047000, C429S047000, C427S115000

Reexamination Certificate

active

07611795

ABSTRACT:
The manufacturing method of the invention is applied to manufacture a unit fuel cell20,which has a hydrogen-permeable metal layer22of a hydrogen-permeable metal and an electrolyte layer21that is located on the hydrogen-permeable metal layer22and has proton conductivity. The method first forms the electrolyte layer21on the hydrogen-permeable metal layer22,and subsequently forms an electrically conductive cathode24on the electrolyte layer21to block off an electrical connection between the cathode24and the hydrogen-permeable metal layer22.The method releases Pd toward the electrolyte layer21in a direction substantially perpendicular to the electrolyte layer21to form a Pd layer as the cathode24that is thinner than the electrolyte layer21.This arrangement of the invention effective prevents a potential short circuit, for example, between the cathode and the hydrogen-permeable metal layer, in the fuel cell, due to pores present in the electrolyte layer.

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