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Title: Method of making gas diffusion layers for electrochemical cells

Abstract

A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.

Inventors:
 [1];  [2];  [3]
  1. (Oakdale, MN)
  2. (Lino Lakes, MN)
  3. (Saint Paul, MN)
Issue Date:
Research Org.:
3M CO
OSTI Identifier:
874802
Patent Number(s):
6465041
Assignee:
3M Innovative Properties Company (Saint Paul, MN) CHO
DOE Contract Number:  
FC02-99EE50582
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; gas; diffusion; layers; electrochemical; cells; provided; layer; cell; comprising; steps; combining; carbon; particles; surfactants; typically; aqueous; vehicle; preliminary; composition; shear; mixing; adding; highly; fluorinated; polymers; coating; applying; electrically; conductive; porous; substrate; electrochemical cell; electrically conductive; gas diffusion; diffusion layer; /427/

Citation Formats

Frisk, Joseph William, Boand, Wayne Meredith, and Larson, James Michael. Method of making gas diffusion layers for electrochemical cells. United States: N. p., 2002. Web.
Frisk, Joseph William, Boand, Wayne Meredith, & Larson, James Michael. Method of making gas diffusion layers for electrochemical cells. United States.
Frisk, Joseph William, Boand, Wayne Meredith, and Larson, James Michael. Tue . "Method of making gas diffusion layers for electrochemical cells". United States. https://www.osti.gov/servlets/purl/874802.
@article{osti_874802,
title = {Method of making gas diffusion layers for electrochemical cells},
author = {Frisk, Joseph William and Boand, Wayne Meredith and Larson, James Michael},
abstractNote = {A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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