Method of manufacturing separator for fuel cell

Details Method of manufacturing separator for fuel cell Method of manufacturing separator for fuel cell

2006-11-21

2006-11-21

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

C427S115000

Reexamination Certificate

active

07138206

ABSTRACT:
In manufacturing a separator for use in a fuel cell, first, a core (31, 94) is interposed between two preforms (17, 90, 101) and a with-core separator (41, 95, 107) is formed. After this, the core is melted by heating and discharged to form multiple cooling water passages (54). Because consequently there is no need to bring separators together to form the cooling water passages, a seal becomes unnecessary. Also, since there is no need to bring separators together the electrical contact resistance also falls.

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patent: 2002-134130 (2002-05-01), None

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