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Interactive Relationship between Temperature Factors and Other Parameters in Fuel Battery

Return Listsource:Gratene date: 2022-06-17

Interactive Relationship between Temperature Factors and Other Parameters in Fuel BatteryThe open circuit voltage of the fuel cell decreases with temperature, but the temperature rise reduces the concentration of the concentration and ohmic over-potential, and the operating voltage increases at the same current density. The system temperature is improved, and the availability of exhaust gas is improved. For PAFC, another advantage of increasing the temperature is the ability to increase the capacity of CO poisoning.

The operating temperature of the fuel cell is limited by the battery material. When PAFC and MCFC are higher at a higher temperature, corrosion makes their life. SOFC is limited by material performance. The operating temperature of the PAFC is about 200 ¡ã C, and the effect of corrosion on life is significant when the temperature is higher. Similarly, the MCFC operating temperature is about 650 ¡ã C

SOFC has the highest operating temperature, and thus the requirements for material properties are higher, such as physical stability, conductive stability, chemical adaptability, and thermal expansion. Many problems will be alleviated after the temperature is reduced. For the currently used electrode and electrolyte material, a high temperature of about 1000 ¡ã C is required in order to ensure sufficiently high ion conductivi 

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