{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A catalyst layer of the present invention is a catalyst layer comprising an interface to a polyelectrolyte membrane. The catalyst layer includes a layer forming material, which includes a catalytic substance, a conductive carrier which supports the catalytic substance, a polyelectrolyte, and a…",
  "path": "/patents/1428220",
  "publishedAt": "2024-03-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/8605",
    "TOPPAN PRINTING CO LTD [JP]"
  ],
  "textContent": "A catalyst layer of the present invention is a catalyst layer comprising an interface to a polyelectrolyte membrane. The catalyst layer includes a layer forming material, which includes a catalytic substance, a conductive carrier which supports the catalytic substance, a polyelectrolyte, and a fibrous material, and a plurality of pores which contain no layer forming material. A pore area ratio which is a total area ratio of the plurality of pores to an area of a cross-section orthogonal to the interface is 25.0% or more and 35.0% or less in a cross-sectional image captured by a scanning electron microscope.",
  "title": "CATALYST LAYER, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL"
}