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Title: Fuel cell end plate structure

Abstract

The end plates (16) of a fuel cell stack (12) are formed of a thin membrane. Pressure plates (20) exert compressive load through insulation layers (22, 26) to the membrane. Electrical contact between the end plates (16) and electrodes (50, 58) is maintained without deleterious making and breaking of electrical contacts during thermal transients. The thin end plate (16) under compressive load will not distort with a temperature difference across its thickness. Pressure plate (20) experiences a low thermal transient because it is insulated from the cell. The impact on the end plate of any slight deflection created in the pressure plate by temperature difference is minimized by the resilient pressure pad, in the form of insulation, therebetween.

Inventors:
 [1];  [2];  [3]
  1. (East Hartford, CT)
  2. (Newington, CT)
  3. (Glastonbury, CT)
Publication Date:
Research Org.:
INTERNATIONAL FUEL CELLS CORP
OSTI Identifier:
867786
Patent Number(s):
US 5009968
Application Number:
07/405,251
Assignee:
International Fuel Cells Corporation (South Windsor, CT) OSTI
DOE Contract Number:  
AC01-79ET15440
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fuel; cell; plate; structure; plates; 16; stack; 12; formed; membrane; pressure; 20; exert; compressive; load; insulation; layers; 22; 26; electrical; contact; electrodes; 50; 58; maintained; deleterious; breaking; contacts; thermal; transients; distort; temperature; difference; thickness; experiences; transient; insulated; impact; slight; deflection; created; minimized; resilient; pad; form; therebetween; fuel cell; temperature difference; electrical contacts; electrical contact; cell stack; compressive load; thermal transient; plate structure; insulation layers; pressure plate; insulation layer; /429/

Citation Formats

Guthrie, Robin J., Katz, Murray, and Schroll, Craig R. Fuel cell end plate structure. United States: N. p., 1991. Web.
Guthrie, Robin J., Katz, Murray, & Schroll, Craig R. Fuel cell end plate structure. United States.
Guthrie, Robin J., Katz, Murray, and Schroll, Craig R. Tue . "Fuel cell end plate structure". United States. doi:. https://www.osti.gov/servlets/purl/867786.
@article{osti_867786,
title = {Fuel cell end plate structure},
author = {Guthrie, Robin J. and Katz, Murray and Schroll, Craig R.},
abstractNote = {The end plates (16) of a fuel cell stack (12) are formed of a thin membrane. Pressure plates (20) exert compressive load through insulation layers (22, 26) to the membrane. Electrical contact between the end plates (16) and electrodes (50, 58) is maintained without deleterious making and breaking of electrical contacts during thermal transients. The thin end plate (16) under compressive load will not distort with a temperature difference across its thickness. Pressure plate (20) experiences a low thermal transient because it is insulated from the cell. The impact on the end plate of any slight deflection created in the pressure plate by temperature difference is minimized by the resilient pressure pad, in the form of insulation, therebetween.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 23 00:00:00 EDT 1991},
month = {Tue Apr 23 00:00:00 EDT 1991}
}

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