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Title: Electrolyte creepage barrier for liquid electrolyte fuel cells

Abstract

A dielectric assembly for electrically insulating a manifold or other component from a liquid electrolyte fuel cell stack wherein the dielectric assembly includes a substantially impermeable dielectric member over which electrolyte is able to flow and a barrier adjacent the dielectric member and having a porosity of less than 50% and greater than 10% so that the barrier is able to measurably absorb and chemically react with the liquid electrolyte flowing on the dielectric member to form solid products which are stable in the liquid electrolyte. In this way, the barrier inhibits flow or creepage of electrolyte from the dielectric member to the manifold or component to be electrically insulated from the fuel cell stack by the dielectric assembly.

Inventors:
 [1];  [2];  [3]
  1. Alberta, CA
  2. Danbury, CT
  3. New Milford, CT
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
983779
Patent Number(s):
7320838
Application Number:
10/405,569
Assignee:
FuelCell Energy, Inc. (Danbury, CT)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
FC21-95MC31184
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Li, Jian, Farooque, Mohammad, and Yuh, Chao-Yi. Electrolyte creepage barrier for liquid electrolyte fuel cells. United States: N. p., 2008. Web.
Li, Jian, Farooque, Mohammad, & Yuh, Chao-Yi. Electrolyte creepage barrier for liquid electrolyte fuel cells. United States.
Li, Jian, Farooque, Mohammad, and Yuh, Chao-Yi. Tue . "Electrolyte creepage barrier for liquid electrolyte fuel cells". United States. https://www.osti.gov/servlets/purl/983779.
@article{osti_983779,
title = {Electrolyte creepage barrier for liquid electrolyte fuel cells},
author = {Li, Jian and Farooque, Mohammad and Yuh, Chao-Yi},
abstractNote = {A dielectric assembly for electrically insulating a manifold or other component from a liquid electrolyte fuel cell stack wherein the dielectric assembly includes a substantially impermeable dielectric member over which electrolyte is able to flow and a barrier adjacent the dielectric member and having a porosity of less than 50% and greater than 10% so that the barrier is able to measurably absorb and chemically react with the liquid electrolyte flowing on the dielectric member to form solid products which are stable in the liquid electrolyte. In this way, the barrier inhibits flow or creepage of electrolyte from the dielectric member to the manifold or component to be electrically insulated from the fuel cell stack by the dielectric assembly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {1}
}

Patent:

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