{
  "$type": "site.standard.document",
  "description": "A bipolar flow field plate for an electrochemical fuel cell comprises fuel supply channels formed on the first surface of the bipolar flow field plate, having a constant cross-section along the length of bipolar flow field plate, oxidant supply channels formed on another surface of the bipolar flow…",
  "path": "/patents/1380172",
  "publishedAt": "2026-03-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/0267",
    "BALLARD POWER SYSTEMS INC."
  ],
  "textContent": "A bipolar flow field plate for an electrochemical fuel cell comprises fuel supply channels formed on the first surface of the bipolar flow field plate, having a constant cross-section along the length of bipolar flow field plate, oxidant supply channels formed on another surface of the bipolar flow field plate, opposite to the first surface, and having a constant cross-section along the length of the bipolar flow field plate and coolant flow channels provided within the bipolar flow field plate, wherein at least two adjacent coolant flow channels in the active area of the bipolar flow field plate communicate to each other through a flow sharing portion. The size of the flow sharing portion can vary according to the coolant flow sharing needs. The projections of the bipolar flow field plate which form the coolant flow channels can be provided with pillars along the flow sharing portions of the plate.",
  "title": "BIPOLAR FLOW FIELD PLATE FOR FUEL CELLS"
}