Integrated direct fuel cell energy storing and supplying system based on liquid hydrogen storage material

Abstract

The invention relates to a direct fuel cell energy storing and supplying system. An integrated direct fuel cell energy storing and supplying system based on a liquid hydrogen storage material is characterized in that an electrochemical hydrogenation device monomer and a fuel cell monomer are integrated, a working medium inlet of the fuel cell monomer is communicated with a first port of a second three-way valve by a first working medium pipe, a second port of the second three-way valve is communicated with the bottom of a hydrogen storage material hydride tank by a second working medium pipe, a third port of the second three-way valve is communicated with the bottom of a hydrogen storage material tank by a sixth working medium pipe, a working medium outlet of the fuel cell monomer is communicated with a first port of a third three-way valve by a fifth working medium pipe, a second port of the third three-way valve is communicated with the hydrogen storage material hydride tank by a fourth working medium pipe, a third port of the third three-way valve is communicated with the hydrogen storage material tank by a third working medium pipe, and the hydrogen storage material tank contains a hydrogen storage material which is multivariate mixed liquid unsaturated heterocyclic aromatic hydrocarbon. According to the integrated direct fuel cell energy storing and supplying system, not only is the device (with a simple structure) simplified, but also the safety is greatly improved.

Description

technical field [0001] The invention relates to hydrogen energy utilization technology in the field of clean energy and new energy. Specifically, it is an energy optimization utilization technology centered on the storage of hydrogen energy and the mutual conversion technology of hydrogen energy and electric energy. That is, electrochemical hydrogenation is performed on a specific reversible hydrogen storage material to achieve electrical energy storage, and the hydrogen energy in the hydrogen storage material hydride is converted into electrical energy through a direct fuel cell. In particular, it relates to an integrated direct fuel cell energy storage energy supply system based on liquid hydrogen storage materials. Background technique [0002] Energy is the basis for the survival and development of modern society. The supply capacity of energy is closely related to the sustainable development of the national economy and is one of the strategic foundations of national se...

AI Technical Summary

Problems solved by technology

Although some solids can be dissolved in a certain solvent, the solvent will reduce its concentration on the electrode surface, such as solids such as phenanthrene and anthracene, and volatile liquids such as benzene cannot be used as their working medium;

[0011] 2) The dehydrogenation temperature of the hydrogenation molecule should not be too high. For example, the dehydrogenation temperature of cyclohexane, a hydrogenation molecule of benzene, is higher than 300°C, which is far beyond the working temperature of the battery and should not be used as a working medium; at the same time, if the dehydrogenation temperature High, the polarization of the anode of the battery is serious, which increases the energy loss in the dehydrogenation discharge

In addition, unstable molecules such as vinyl alcohol cannot be used as a working medium

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