{
  "$type": "site.standard.document",
  "description": "A solid-oxide fuel cell system (10) having a relatively large primary fuel cell sub-assembly (12) for steady-state operation and a relatively small secondary fuel cell sub-assembly (26) which is rapidly heatable to a threshold operating temperature to a) produce usable power in a short time period…",
  "path": "/patents/1079943",
  "publishedAt": "2005-02-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/04007",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "A solid-oxide fuel cell system (10) having a relatively large primary fuel cell sub-assembly (12) for steady-state operation and a relatively small secondary fuel cell sub-assembly (26) which is rapidly heatable to a threshold operating temperature to a) produce usable power in a short time period, b) cascade a hot exhaust (42) into the primary fuel cell sub-assembly (12) to assist in preheating thereof, and c) provide steam (41) into the primary fuel cell sub-assembly (12) to prevent coking of the anodes thereof. As the primary sub-assembly (12) reaches its threshold temperature, it too begins to generate electricity and continues to self-heat and to be heated by the secondary sub-assembly (26). Preferably, the secondary sub-assembly (26) continues to provide electricity in complement with the primary sub-assembly (12) until the primary sub-assembly (12) reaches full power, at which time the secondary sub-assembly (26) may be shut down or switched to standby status for fuel efficiency, as desired.",
  "title": "Cascaded fuel cell stacks for fast start-up and anode coking control"
}