Solid oxide fuel cell electrostatic spinning electrode nano-particle percolation probability calculating method

Abstract

The present invention discloses a solid oxide fuel cell electrostatic spinning electrode nano-particle percolation probability calculation method. The method comprises the following steps: constructing a geometric model of an electrostatic spinning electrode; constructing geometric structures for different impregnation quantities according to quantities of impregnated nano-particles; determining whether each particle belongs to a percolation cluster; making statistics to calculate a percolation probability; obtaining percolation probabilities for the different impregnation quantities by means of a series of calculation; and finding a percolation threshold of nano-particle impregnating performed by the electrostatic spinning electrode. According to the method provided by the present invention, the percolation probability of nano-particle impregnating performed by the electrostatic spinning electrode can be rapidly and accurately obtained, so that theoretical guidance is provided for experimental production of solid oxide fuel cell electrostatic spinning percolation electrodes.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a method for calculating the percolation probability of nanoparticle electrospinning electrodes of solid oxide fuel cells. Background technique [0002] The way of thermal power generation is to convert the chemical energy of matter into thermal energy first, then convert the thermal energy into mechanical energy, and finally convert the mechanical energy into electrical energy. There are many energy conversion links and large losses, and its overall efficiency is restricted by the Carnot cycle. Therefore, Its energy utilization rate is not high; and the thermal power generation method emits serious pollutants, which directly threatens the sustainable development of human beings and even the living environment. Therefore, human beings urgently need a direct, efficient and clean power generation method. [0003] As a power generation method based on electrochemical reactions, fuel cells...

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Problems solved by technology

[0006] At present, the research methods on the percolation probability of nanoparticles in electrospinning electrodes are relatively limited, mainly through experimental methods, but the experiments that go deep into the microstructure of the electrodes need to rely on a large number of high-tech equipment, which is costly, and the experiments can only be carried out on a very small number of samples. To carry out research, to carry out systematic research, such as the percolation rate under different impregnation amounts, is a time-consuming, labor-intensive and money-consuming process

Moreover, there are still some uncontrollable factors in the experiment. For example, due to the limited amount of single impregnation, to meet the percolation requirements, repeated impregnation must be repeated many times, which makes it difficult to accurately control the impregnation effect, and it is impossible to accurately obtain the percolation threshold.

[0007] In short, the current experimental method lacks theoretical guidance, and a theoretical model is urgently needed to accurately calculate the percolation probability of nanoparticles under different impregnation amounts of electrospinning electrodes, and obtain the percolation threshold, which provides key guidance for experimental production

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