A performance test method for medium and low temperature solid oxide fuel cells

Abstract

The invention relates to a performance test method for low-medium temperature SOFCs. The performance test method specifically comprises the following steps based on a test using electronic loads as anelectrical measuring device: 1) preparing before testing; 2) determining battery activation and a current scanning upper limit; 3) performing fast constant current scanning (a transient performance fast test); 4) performing slow constant current scanning (a quasi-steady state performance test); 5) carrying out a further current scanning test; 6) performing steady-state polarization measurement; and 7) processing experimental data. The method emphasizes two points of the steady-state maintenance and detailed recording of test conditions in the fuel cell measurement process. By using the method, performances of various different SOFCs can be evaluated accurately, simply, efficiently and intuitively. The data obtained by the test is comprehensive and actual working performances of the fuel cells can be better reflected.

Description

technical field [0001] The invention relates to the field of solid oxide fuel cells, in particular to a performance testing method for solid oxide fuel cells. Background technique [0002] A fuel cell is a device that can directly convert the chemical energy in fuel and oxidant into electrical energy. It has many advantages over traditional energy sources, such as high efficiency, environmental protection and no pollution. [0003] Fuel cells can be divided into many different types according to the electrolyte used. Among them, solid oxide fuel cells (Solid Oxide Fuel Cells, SOFC) use ion-conducting ceramics as the main component of the battery, which has many unique advantages and is considered to have broad development space in many fields. [0004] According to different operating temperatures, solid oxide fuel cells that work above 800 degrees Celsius are generally called high-temperature solid oxide fuel cells, and solid oxide fuel cells that work between 800 degrees ...

AI Technical Summary

Problems solved by technology

At the same time, due to the different fuel cell test standards and methods adopted by different institutions or individuals, it is inevitable that others will encounter data differences caused by different method standards when collating and summarizing data from different sources, which affects the quality of the test. Comparability

[0011] In summary, although the existing fuel cell test methods can obtain more ideal results, they often cannot obtain accurate data reflecting the true performance of the fuel cell; at the same time, due to different test standards, it often leads to additional differences in the result data

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