Service life prediction method for structural damage and electrochemical performance attenuation of SOFC (Solid Oxide Fuel Cell) electric pile

The invention belongs to the technical field of solid oxide fuel cells, and particularly discloses a service life prediction method for structural damage and electrochemical performance degradation of an SOFC (solid oxide fuel cell) stack. According to the method, a finite element model of the SOFC galvanic pile is established by carrying out a mechanical property test and a galvanic pile durability test on galvanic pile composition materials, the correlation between the structural damage and the electrochemical performance degradation of the SOFC galvanic pile under different operation conditions is associated, and an SOFC galvanic pile life prediction model based on the structural damage and the electrochemical performance degradation is established. And the model is verified and perfected by using an acceleration test, and the service life of the SOFC electric pile is predicted. According to the method, the electrochemical performance attenuation of the SOFC electric pile is analyzed, meanwhile, the struct