Manufacture of a gas diffusion electrode
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United States of America Patent
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Issued Date -
Oct 20, 2005
app pub date -
Jun 10, 2005
filing date -
May 31, 2002
priority date (Note) -
Abandoned
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Abstract
A novel process for the manufacture of a gas diffusion electrode comprising the steps of a) application of a catalyst ink to a gas diffusion substrate; b) firing; c) application of a proton-conducting polymer solution; and d) drying; characterised in that the proton-conducting polymer solution comprises one or more solvents selected from the group of solvents with structure (A) wherein R.sup.1, R.sup.2 and R.sup.3 are independently chosen from H, methyl, ethyl, n-propyl and isopropyl is disclosed. A novel process for the manufacture of a membrane electrode assembly is also disclosed.
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