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Diagnosis of Fuel-Cell Deterioration Using Fuel-Cell Current-Voltage Characteristics
Technical Paper
1999-01-2575
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
We are developing a method of diagnosing fuel-cell deterioration in phosphoric-acid-fuel-cell (PAFC) power plants that use a small single cell, based on measuring its current-voltage (I-V) characteristics. As the fuel-cell deteriorates, the coefficient k in the linear equation (V=kI+V0), which approximates the I-V characteristics, increases and the constant V0 decreases. Thus k and V0 can be used for diagnosis as well as the cell voltage. The ratio of the maximum power to the rated power PMAX/PR approaches 1.0 as fuel-cell deterioration proceeds. Therefore, PMAX/PR can be used as a parameter for predicting fuel-cell lifetime when the minimum output power PMIN during fuel-cell power generation is given.
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Citation
Babasaki, T., Take, T., and Yamashita, T., "Diagnosis of Fuel-Cell Deterioration Using Fuel-Cell Current-Voltage Characteristics," SAE Technical Paper 1999-01-2575, 1999, https://doi.org/10.4271/1999-01-2575.Also In
References
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- Yamamoto, H. Ganke, T. Miki, H. Sugimoto, K. Operation and Maintenance Techniques of Small PAFC T. IEE Japan 116-B 741 747 1996
- Ohtani T. Murahashi, T. Development of Phosphoric Acid Fuel Cell Power Plant in Mitsubishi Electric Corp. 1998 Fuel Cell Seminar Abstract 461 464 Palm Springs U.S.A. 1998