Parallel direct fuel cell energy storage and supply system based on liquid hydrogen storage material

Abstract

The invention relates to a direct fuel cell energy storage and supply system, and in particular relates to a parallel direct fuel cell energy storage and supply system based on a liquid hydrogen storage material. The system comprises a fuel cell single unit and an electrochemical hydrogenation device single unit and is characterized in that a water inlet on the electrochemical hydrogenation device single unit is connected with one end of a water inlet pipe; a hydrogen storage material input hole on the electrochemical hydrogenation device single unit is communicated with the bottom of a hydrogen storage material tank by a hydrogen storage material input pipe; a hydrogen storage material hydride outlet on the electrochemical hydrogenation device single unit is communicated with a hydrogen storage material hydride tank by a hydrogen storage material hydride output pipe; a hydrogen storage material outlet on the fuel cell single unit is communicated with the hydrogen storage material tank by a hydrogen storage material output pipe; a hydrogen storage material hydride input hole on the fuel cell single unit is communicated with the hydrogen storage material hydride tank by a hydrogen storage material hydride input pipe; and the hydrogen storage material tank is filled with the hydrogen storage material which is multi-element mixed liquid unsaturated heterocyclic aromatic hydrocarbon. The system not only simplifies the devices (has simple structure) but also greatly improves the safety.

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. It specifically relates to a parallel 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 securit...

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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