Fuel cell separator and method for manufacturing fuel cell separator
A fuel cell and separator technology, which is applied to fuel cell parts, fuel cells, solid electrolyte fuel cells, etc., can solve the problems of low affinity and achieve the effect of suppressing trachoma
Active Publication Date: 2010-11-10
TOYOTA JIDOSHA KK
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Problems solved by technology
However, the passivation film 22 introduced above has low affinity with the hydrophilic water-soluble resin.
Method used
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A separator for fuel cell comprises an iron-based hydrous oxide film 24, excluding a gas flow channel of the SUS separator base material 20 by performing cathodic electrolytic treatment in an alkaline solution, and a water-soluble electrodeposited resin layer 26 is formed on the iron-based hydrous oxide film 24.
Description
Separator for fuel cell and manufacturing method thereof technical field The present invention relates to a separator for a fuel cell and a manufacturing method thereof, and particularly to a separator for a fuel cell having improved adhesion of a separator base material to a resin coating layer and a manufacturing method thereof. Adhesion (adhesion), so it has excellent durability. Background technique For example, a solid polymer fuel cell has a battery cell (cell) as the minimum unit, as shown in FIG. Between two electrodes to form a membrane electrode assembly (membrane electrode assembly) (MEA), and further sandwich the MEA between two separators 40 to prepare, and usually make a plurality of battery cells stacked into a fuel cell stack ( FC stack) in order to generate high voltage. The mechanism of electricity generation in solid polymer fuel cells will be described below. Usually, fuel gas (for example, hydrogen-containing gas) is supplied to the fuel electrode ...
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IPC IPC(8): H01M8/02H01M8/10
CPCY02E60/50H01M8/021H01M8/0228H01M8/0221H01M8/0215Y02P70/50
Inventor 渡边祐介饭冢和孝山崎修
Owner TOYOTA JIDOSHA KK
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