A fuel cell multifunctional on-line test printed circuit board

Abstract

The invention relates to a multifunctional fuel cell on-line testing printed circuit board. The multifunctional fuel cell on-line testing printed circuit board is used for testing the partition electric density distribution, partition temperature distribution and partition alternating current impedance, of a fuel cell on line and comprises a partition flow field layer, a temperature testing layer, an impedance testing layer, an electric current density testing layer and an electrical current collection and water flow field layer which are sequentially arranged, wherein the partition flow field layer is connected with the fuel cell and is used for dividing the fuel cell into a plurality of mutually insulated partitions; and the partition flow field layer, the impedance testing layer, the current density testing layer, the current collection and the water flow field layer and the fuel cell are sequentially connected to form a closed loop circuit. Compared with the prior art, the multifunctional fuel cell on-line testing printed circuit board can accurately reflect the water-heat distribution, electrochemical reaction condition and mass and heat transfer phenomenon of each partition in the fuel cell by measuring the current density distribution, temperature distribution and alternate current impedance in the fuel cell, is integrally designed, is independent of an tested object completely, simple in structure and convenient to operate, can comprehensively reflect the performance of the partitions of the fuel cell.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a multifunctional on-line test printed circuit board for fuel cells. Background technique [0002] Due to its high efficiency and low pollution, fuel cells have become one of the most promising power systems in the future. With the massive investment of financial and material resources from governments and research institutions of various countries, fuel cell technology has developed rapidly, and certain progress has been made in technology and commercialization process, but fuel cells still have many problems such as high cost, poor stability and durability. . Therefore, measuring and researching the performance parameters of the internal partitions of the fuel cell is of great significance for understanding the heat and mass transfer phenomenon inside the fuel cell, understanding the actual operation information of the fuel cell, optimizing the fuel cell control system, and improving...

AI Technical Summary

Problems solved by technology

[0006] The existing partition test technology mainly focuses on measuring the distribution of current density in the partition, and requires a specially designed fuel cell or changing the current collector electrode. There are few test partition parameters, and it is impossible to use the same device to measure the current density, temperature and AC of the fuel cell at the same time. The distribution of impedance cannot accurately reflect the distribution of water and heat in the internal partition of the fuel cell, the electrochemical reaction and the phenomenon of mass and heat transfer

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