Patent ID: 11923549
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A fuel cell comprising:
an electrolyte membrane;
first and second catalyst layers;
first and second gas diffusion layers;
an adhesive layer; and
a support frame, wherein:
the first catalyst layer is placed on a first surface of the electrolyte membrane;
the first gas diffusion layer is placed on the first catalyst layer;
the second catalyst layer smaller than the electrolyte membrane is placed on a second surface of the electrolyte membrane such that the second catalyst layer is placed inwardly from an outer periphery of the electrolyte membrane;
the second gas diffusion layer smaller than the electrolyte membrane is placed on the second catalyst layer such that the second gas diffusion layer is placed inwardly from the outer periphery of the electrolyte membrane;
the adhesive layer is placed in a region outside an outer peripheral edge part of the second catalyst layer, on the second surface of the electrolyte membrane;
the support frame includes an opening larger than the second catalyst layer and the second gas diffusion layer;
the support frame is disposed on the second surface of the electrolyte membrane via the adhesive layer such that the second catalyst layer and the second gas diffusion layer are placed inside the opening;
a specific region as a region between the outer peripheral edge part of the second catalyst layer and an inner peripheral edge part of the opening of the support frame is present; and
a predetermined material is placed inside a recessed portion present on a surface of the adhesive layer within the specific region, the predetermined material containing at least one of a first substance having an action of decomposing hydrogen peroxide and a second substance having an action of decomposing hydroxyl radicals.