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Title: Porous electrode preparation method

Abstract

A porous sintered plaque is provided with a bimodal porosity that is especially well suited for use as an electrode within a molten carbonate fuel cell. The coarse porosity is sufficient for admitting gases into contact with the reaction surfaces while the fine porosity is wetted with and retains molten electrolyte on the reaction sites. The electrode structure is prepared by providing a very fine powder of such as nickel oxide and blending the powder with a suitable decomposable binder to form a solid mass. The mass is comminuted into agglomerate size particles substantially larger than the fine oxide particles and formed into a cohesive compact for subsequent sintering. Sintering is carried out at sufficient conditions to bind the agglomerates together into a porous structure having both coarse and fine porosity. Where lithiated nickel oxide cathodes are prepared, the sintering conditions can be moderate enough to retain substantial quantities of lithium within the electrode for adequate conductivity.

Inventors:
 [1];  [2]
  1. (Wheaton, IL)
  2. (Downers Grove, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
864745
Patent Number(s):
US 4410607
Assignee:
Arons, Richard M. (Wheaton, IL);Dusek, Joseph T. (Downers Grove, IL) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
porous; electrode; preparation; method; sintered; plaque; provided; bimodal; porosity; especially; suited; molten; carbonate; fuel; cell; coarse; sufficient; admitting; gases; contact; reaction; surfaces; fine; wetted; retains; electrolyte; sites; structure; prepared; providing; powder; nickel; oxide; blending; suitable; decomposable; binder; form; solid; mass; comminuted; agglomerate; size; particles; substantially; larger; formed; cohesive; compact; subsequent; sintering; carried; conditions; bind; agglomerates; lithiated; cathodes; moderate; retain; substantial; quantities; lithium; adequate; conductivity; size particles; oxide cathode; substantially larger; fuel cell; porous structure; molten electrolyte; electrode structure; carbonate fuel; molten carbonate; nickel oxide; oxide particles; porous electrode; solid mass; porous sintered; fine powder; size particle; preparation method; particles substantially; sintered plaque; reaction site; reaction sites; oxide particle; /429/29/

Citation Formats

Arons, Richard M., and Dusek, Joseph T.. Porous electrode preparation method. United States: N. p., 1983. Web.
Arons, Richard M., & Dusek, Joseph T.. Porous electrode preparation method. United States.
Arons, Richard M., and Dusek, Joseph T.. Sat . "Porous electrode preparation method". United States. https://www.osti.gov/servlets/purl/864745.
@article{osti_864745,
title = {Porous electrode preparation method},
author = {Arons, Richard M. and Dusek, Joseph T.},
abstractNote = {A porous sintered plaque is provided with a bimodal porosity that is especially well suited for use as an electrode within a molten carbonate fuel cell. The coarse porosity is sufficient for admitting gases into contact with the reaction surfaces while the fine porosity is wetted with and retains molten electrolyte on the reaction sites. The electrode structure is prepared by providing a very fine powder of such as nickel oxide and blending the powder with a suitable decomposable binder to form a solid mass. The mass is comminuted into agglomerate size particles substantially larger than the fine oxide particles and formed into a cohesive compact for subsequent sintering. Sintering is carried out at sufficient conditions to bind the agglomerates together into a porous structure having both coarse and fine porosity. Where lithiated nickel oxide cathodes are prepared, the sintering conditions can be moderate enough to retain substantial quantities of lithium within the electrode for adequate conductivity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

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