Method for reducing charge in gas diffusing electrode and its charge reducing structure
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United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
Oct 16, 2000
filing date -
Oct 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electricity leading method for a gas diffusion electrode is provided, by which a gas diffusion electrode is easily fixed to a cathode current collecting frame, the contact part has reduced electrical resistance, even an electrically insulating mesh sheet can be utilized as a gas chamber, and only the gas diffusion electrode can be replaced in renewal of the electrode. The method includes preparing a gas diffusion electrode by sandwiching a conductor made of a highly conductive metallic mesh or spongy processed material in catalyst layers or attaching a catalyst layer onto the conductor while leaving the conductor exposed in the outer periphery of the electrode, and electrically connecting the exposed part of the conductor to a cathode chamber current collecting frame.
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