| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell monitoring device which can measure the diffusion state of reactive gas in a fuel cell while quantifying.SOLUTION: A fuel cell monitoring device 5 includes a resistance calculation unit 533a for calculating the gas reaction resistance Ron the basis of the impedance for each different frequency calculated in an impedance calculation unit 532, as a diffusion resistance measurement unit 533 for measuring the gas diffusion resistance Rindicating the difficulty of diffusion of reaction gas in a fuel cell 1, a limit current density calculation unit 533b for calculating the limit current density I, and a gas diffusion resistance calculation unit 533c for calculating the gas diffusion resistance Ron the basis of the gas reaction resistance Rand limit current density I. |
