Method of manufacturing fuel cell
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsSho Usami, Megumi Yaegashi
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Abstract
A method of manufacturing a fuel cell which enables organic matter of both an anode thereof and a cathode thereof to be removed efficiently is provided. A method of manufacturing a fuel cell, comprising a preparation step of preparing a fuel cell comprising a stack of a plurality of unit cells, each including polymer electrolyte and a catalyst layer, and a removal step of removing organic matter from the fuel cell, is provided. This removal step comprises: a first step of maintaining a voltage of the fuel cell at 0 V so as to desorb organic matter from the catalyst layer; a second step of raising a temperature inside the fuel cell so as to evaporate the desorbed organic matter; and a third step of exhausting the evaporated organic matter from the fuel cell.
Claims5
A method of manufacturing a fuel cell, comprising:
- a preparation step of preparing a fuel cell comprising a stack of a plurality of unit cells each including polymer electrolyte and a catalyst layer;
- and
- a removal step of removing organic matter from the fuel cell,
- wherein the removal step comprises:
- a first step of maintaining a voltage of the fuel cell at 0 V in a state in which hydrogen is sealed on an anode side while nitrogen or hydrogen is sealed on a cathode side in the fuel cell so as to desorb organic matter from the catalyst layer;
- a second step of raising a temperature inside the fuel cell while the anode and the cathode are in the sealed state so as to evaporate the desorbed organic matter;
- and
- a third step of exhausting the evaporated organic matter from the fuel cell.
Dependencies are inferred from the claim text.