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Title: Stable electrolyte matrix for molten carbonate fuel cells

Abstract

An electrolyte matrix for use with molten carbonate fuel cells having an enhanced stability and lifetime is provided. The electrolyte matrix includes lithium aluminate as a support material and a coarsening inhibitor. The coarsening inhibitor may be in the form of discrete particles or a dopant present in the support material. The coarsening inhibitor may include MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, or mixtures thereof. The coarsening inhibitor prevents the formation of large pores in the electrolyte matrix during operation of the fuel cell, increasing the performance and the service lifetime of the electrolyte matrix.

Inventors:
; ; ;
Issue Date:
Research Org.:
FuelCell Energy, Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735193
Patent Number(s):
10756358
Application Number:
15/343,864
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:  
EE0006606
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/04/2016
Country of Publication:
United States
Language:
English

Citation Formats

Hilmi, Abdelkader, Surendranath, Arun, Yuh, Chao-Yi, and Farooque, Mohammad. Stable electrolyte matrix for molten carbonate fuel cells. United States: N. p., 2020. Web.
Hilmi, Abdelkader, Surendranath, Arun, Yuh, Chao-Yi, & Farooque, Mohammad. Stable electrolyte matrix for molten carbonate fuel cells. United States.
Hilmi, Abdelkader, Surendranath, Arun, Yuh, Chao-Yi, and Farooque, Mohammad. Tue . "Stable electrolyte matrix for molten carbonate fuel cells". United States. https://www.osti.gov/servlets/purl/1735193.
@article{osti_1735193,
title = {Stable electrolyte matrix for molten carbonate fuel cells},
author = {Hilmi, Abdelkader and Surendranath, Arun and Yuh, Chao-Yi and Farooque, Mohammad},
abstractNote = {An electrolyte matrix for use with molten carbonate fuel cells having an enhanced stability and lifetime is provided. The electrolyte matrix includes lithium aluminate as a support material and a coarsening inhibitor. The coarsening inhibitor may be in the form of discrete particles or a dopant present in the support material. The coarsening inhibitor may include MnO2, Mn2O3, TiO2, ZrO2, Fe2O3, LiFe2O3, or mixtures thereof. The coarsening inhibitor prevents the formation of large pores in the electrolyte matrix during operation of the fuel cell, increasing the performance and the service lifetime of the electrolyte matrix.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {8}
}

Works referenced in this record:

The Effects of Different Environments on the Thermal Stability of Powdered Samples of LiAlO[sub 2]
journal, January 1980


Crystal Growth of γ‐Lithium Aluminate in Molten Li/K Carbonates
journal, September 1996


Phase and microstructure stabilities of LiAlO2 in molten Li/Na carbonate for molten carbonate fuel cells
journal, April 2005


Particle growth behaviour of LiAlO2 containing ZrO2 in Li/Na carbonate electrolytes
journal, March 1998


Fuel cell having electrolyte layer held between anode and cathode
patent, August 1998


Stability of LiAlO2 as electrolyte matrix for molten carbonate fuel cells
journal, October 1998


Stability and solubility of electrolyte matrix support material for molten carbonate fuel cells
journal, October 1999


Mechanism of Crystal Growth of Lithium Aluminate Particles in Molten Lithium and Potassium Carbonates
journal, April 1992