Solid hydrogen storage device and fuel cell integrated power supply system and use method thereof

Abstract

The invention relates to the technical field of hydrogen fuel cells, and provides a solid hydrogen storage device and fuel cell integrated power supply system and a use method thereof. The system comprises a fuel cell device, a hydrogen reaction heater, a solid hydrogen storage device and an automatic temperature control device, the solid hydrogen storage device comprises a heat exchange tank and a hydrogen storage tank; the hydrogen reaction heater comprises a bin body and a hydrogen reaction furnace; a temperature monitor is arranged on the outer side of the hydrogen storage tank, the hydrogen storage tank is communicated with the fuel cell device and a gas inlet of the bin body, a gas flow control valve is arranged at the gas inlet of the bin body, a pressure monitor is arranged on the hydrogen supply pipeline, and the heat exchange groove is communicated with the bin body through cold and hot heat conduction oil pipelines; the control valve, the monitor and the oil pump are all connected with the automatic temperature control device. According to the invention, continuous, stable and sufficient heat energy can be provided for the hydrogen desorption process of a solid hydrogen storage material, especially a high-temperature hydrogen storage material in the solid hydrogen storage device, the energy utilization rate is improved, the weight of the hydrogen storage device is reduced, and the safety and flexibility of the operation of the hydrogen fuel cell integrated power supply system are improved.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cells, in particular to an integrated power supply system of a solid-state hydrogen storage device and a fuel cell and a method of using the same. Background technique [0002] With the increasing demand for clean energy from all walks of life, fuel cells using hydrogen are gradually entering the market. Among them, fuel cell systems equipped with solid-state hydrogen storage devices have attracted extensive attention due to their high safety, high volumetric hydrogen storage density and fast hydrogen charging characteristics. [0003] In terms of hydrogen storage materials, in addition to the materials that absorb hydrogen at room temperature, there are also some high-temperature hydrogen storage materials (the hydrogen absorption and desorption temperatures are all greater than 150 °C), such as magnesium-based hydrogen storage materials, whose hydrides themselves are light in weight (densi...

AI Technical Summary

Problems solved by technology

However, the main difficulty currently hindering the application of high-temperature hydrogen storage materials lies in their high hydrogen release temperature. For example, the hydrogen release temperature of magnesium-based hydrogen storage materials is 300°C, which makes it difficult to provide heat from fuel cell waste heat, while using fuel cell electric energy to heat would result in a considerable waste of energy

Images