{
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  "description": "A fuel cell performance estimation device includes (A) a first means configured to sequentially acquire a voltage V[i] and current I[i] of a polymer electrolyte fuel cell at a time[i] and store them in a memory, (B) a second means configured to calculate a catalyst potential V[i] of a cathode at…",
  "path": "/patents/1423455",
  "publishedAt": "2026-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/04641",
    "KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO"
  ],
  "textContent": "A fuel cell performance estimation device includes (A) a first means configured to sequentially acquire a voltage V[i] and current I[i] of a polymer electrolyte fuel cell at a time[i] and store them in a memory, (B) a second means configured to calculate a catalyst potential V[i] of a cathode at the time[i], calculate an effective surface utilization factor θ[i] of noble metal-based catalyst particles at the time[i] using the V[i], and store them in the memory, (C) a third means configured to calculate an electrode catalyst surface area A[i] at the time[i] and an activity SA[i] per surface area of the particles using the V[i], the V[i], and/or integration time of power generation, and store them in the memory, and (D) a fourth means configured to calculate an estimated value IV[i] of IV characteristics using the θ[i], the A[i] and the SA[i] and store the IV[i] in the memory.",
  "title": "FUEL CELL PERFORMANCE ESTIMATION DEVICE"
}