Screen printing method for making an electrochemical cell electrode
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United States of America Patent
Stats
-
Jan 22, 1980
Grant Date -
N/A
app pub date -
Jun 28, 1978
filing date -
Jun 28, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Fuel cell electrodes of uniform quality are made on a continuous basis using screen printing. A wet floc is first made by floccing a co-suspension of carbon and hydrophobic polymer. The floc is dried, reduced to a fine powder, and re-suspended in an inking vehicle. The ink is then screen printed onto a porous substrate and the inking vehicle is removed such as by heating. The layer is compacted, sintered, and then catalyzed such as with platinum.
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