{
  "$type": "site.standard.document",
  "description": "With respect to a carbon fiber woven fabric to be used as a gas diffusion layer base material in a polymer electrolyte fuel cell, the surface thereof is smoothed and further optimized such that non-uniform infiltration of a coating for water-repellent-layer formation is inhibited, to provide an…",
  "path": "/patents/1086389",
  "publishedAt": "2004-06-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/8605",
    "MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]"
  ],
  "textContent": "With respect to a carbon fiber woven fabric to be used as a gas diffusion layer base material in a polymer electrolyte fuel cell, the surface thereof is smoothed and further optimized such that non-uniform infiltration of a coating for water-repellent-layer formation is inhibited, to provide an electrolyte membrane-electrode assembly suitable for an operation under a high humidification condition. As the gas diffusion layer base material used is a carbon fiber woven fabric, wherein a ratio of the area of gap portions where neither warp thread nor weft thread exists: (10/W-Y)(10/Z-X) to the area of portions where warp thread is crossing weft thread: XY mm is in the range of 1/1500 to 1/5, when the carbon fiber woven fabric has a warp density of Z threads/cm, a weft density of W threads/cm, a warp thickness of X mm and a weft thickness of Y mm.",
  "title": "Electrolyte membrane-electrode assembly for fuel cell and operation method of fuel cell using the same"
}