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Title: Ribbed electrode substrates

Abstract

A ribbed substrate for an electrochemical cell electrode is made from a mixture of carbon fibers and carbonizable resin and has a mean pore size in the ribs which is 60-75% of the mean pore size of the web portions of the substrate which interconnect the ribs. Preferably the mean pore size of the web portion is 25-45 microns; and, if the substrate includes edge seals parallel to the ribs, the edge seals preferably have a mean pore size no greater than about ten microns. Most preferably the substrate has the same ratio of carbon fibers to polymeric carbon in all areas, including the ribs, webs, and edge seals. A substrate according to the present invention will have better overall performance than prior art substrates and minimizes the substrate thickness required for the substrate to perform all its functions well.

Inventors:
 [1];  [2]
  1. (Coventry, CT)
  2. (West Springfield, MA)
Publication Date:
Research Org.:
UNITED TECHNOLOGIES CORP
OSTI Identifier:
864500
Patent Number(s):
US 4374906
Assignee:
United Technologies Corporation (Hartford, CT) OSTI
DOE Contract Number:  
AC03-77ET11302
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ribbed; electrode; substrates; substrate; electrochemical; cell; mixture; carbon; fibers; carbonizable; resin; mean; pore; size; ribs; 60-75; web; portions; interconnect; preferably; portion; 25-45; microns; edge; seals; parallel; ratio; polymeric; including; webs; according; overall; performance; prior; minimizes; thickness; required; perform; functions; electrode substrate; edge seal; substrate thickness; carbon fibers; carbon fiber; electrochemical cell; pore size; mean pore; cell electrode; edge seals; ribbed electrode; electrode substrates; /429/

Citation Formats

Breault, Richard D., and Goller, Glen J.. Ribbed electrode substrates. United States: N. p., 1983. Web.
Breault, Richard D., & Goller, Glen J.. Ribbed electrode substrates. United States.
Breault, Richard D., and Goller, Glen J.. Sat . "Ribbed electrode substrates". United States. https://www.osti.gov/servlets/purl/864500.
@article{osti_864500,
title = {Ribbed electrode substrates},
author = {Breault, Richard D. and Goller, Glen J.},
abstractNote = {A ribbed substrate for an electrochemical cell electrode is made from a mixture of carbon fibers and carbonizable resin and has a mean pore size in the ribs which is 60-75% of the mean pore size of the web portions of the substrate which interconnect the ribs. Preferably the mean pore size of the web portion is 25-45 microns; and, if the substrate includes edge seals parallel to the ribs, the edge seals preferably have a mean pore size no greater than about ten microns. Most preferably the substrate has the same ratio of carbon fibers to polymeric carbon in all areas, including the ribs, webs, and edge seals. A substrate according to the present invention will have better overall performance than prior art substrates and minimizes the substrate thickness required for the substrate to perform all its functions well.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}

Patent:

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