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Title: Corrosion test cell for bipolar plates

Abstract

A corrosion test cell for evaluating corrosion resistance in fuel cell bipolar plates is described. The cell has a transparent or translucent cell body having a pair of identical cell body members that seal against opposite sides of a bipolar plate. The cell includes an anode chamber and an cathode chamber, each on opposite sides of the plate. Each chamber contains a pair of mesh platinum current collectors and a catalyst layer pressed between current collectors and the plate. Each chamber is filled with an electrolyte solution that is replenished with fluid from a much larger electrolyte reservoir. The cell includes gas inlets to each chamber for hydrogen gas and air. As the gases flow into a chamber, they pass along the platinum mesh, through the catalyst layer, and to the bipolar plate. The gas exits the chamber through passageways that provide fluid communication between the anode and cathode chambers and the reservoir, and exits the test cell through an exit port in the reservoir. The flow of gas into the cell produces a constant flow of fresh electrolyte into each chamber. Openings in each cell body is member allow electrodes to enter the cell body and contact the electrolytemore » in the reservoir therein. During operation, while hydrogen gas is passed into one chamber and air into the other chamber, the cell resistance is measured, which is used to evaluate the corrosion properties of the bipolar plate.« less

Inventors:
 [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
874751
Patent Number(s):
6454922
Assignee:
The Regents of the University of California (Los Alamos, NM) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
corrosion; cell; bipolar; plates; evaluating; resistance; fuel; described; transparent; translucent; pair; identical; seal; opposite; plate; anode; chamber; cathode; contains; mesh; platinum; current; collectors; catalyst; layer; pressed; filled; electrolyte; solution; replenished; fluid; larger; reservoir; gas; inlets; hydrogen; air; gases; flow; pass; exits; passageways; provide; communication; chambers; exit; produces; constant; fresh; openings; allow; electrodes; enter; contact; operation; passed; measured; evaluate; properties; fuel cell; hydrogen gas; current collector; fluid communication; catalyst layer; /204/429/

Citation Formats

Weisbrod, Kirk R. Corrosion test cell for bipolar plates. United States: N. p., 2002. Web.
Weisbrod, Kirk R. Corrosion test cell for bipolar plates. United States.
Weisbrod, Kirk R. Tue . "Corrosion test cell for bipolar plates". United States. https://www.osti.gov/servlets/purl/874751.
@article{osti_874751,
title = {Corrosion test cell for bipolar plates},
author = {Weisbrod, Kirk R.},
abstractNote = {A corrosion test cell for evaluating corrosion resistance in fuel cell bipolar plates is described. The cell has a transparent or translucent cell body having a pair of identical cell body members that seal against opposite sides of a bipolar plate. The cell includes an anode chamber and an cathode chamber, each on opposite sides of the plate. Each chamber contains a pair of mesh platinum current collectors and a catalyst layer pressed between current collectors and the plate. Each chamber is filled with an electrolyte solution that is replenished with fluid from a much larger electrolyte reservoir. The cell includes gas inlets to each chamber for hydrogen gas and air. As the gases flow into a chamber, they pass along the platinum mesh, through the catalyst layer, and to the bipolar plate. The gas exits the chamber through passageways that provide fluid communication between the anode and cathode chambers and the reservoir, and exits the test cell through an exit port in the reservoir. The flow of gas into the cell produces a constant flow of fresh electrolyte into each chamber. Openings in each cell body is member allow electrodes to enter the cell body and contact the electrolyte in the reservoir therein. During operation, while hydrogen gas is passed into one chamber and air into the other chamber, the cell resistance is measured, which is used to evaluate the corrosion properties of the bipolar plate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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