70 MPa high-pressure vehicle-mounted carbon fiber entwined hydrogen storage bottle with aluminum-alloy inner container

Abstract

The invention discloses a 70 MPa high-pressure vehicle-mounted carbon fiber entwined hydrogen storage bottle with an aluminum-alloy inner container. The hydrogen storage bottle includes an aluminum-alloy inner container, a carbon fiber entwined layer, and a fiberglass protective layer; the technical scheme adopts the following steps: adjusting the tensile strength of fiber after being impregnated with resin, entwining the surface of the aluminum-alloy inner container with the fiber according to the optimal design of ply stacking sequence, then entwining the outer surface of the carbon fiber entwined layer with a fiberglass shock resistance protective layer, and adopting the 'self-compaction' technology for treatment in the manufacturing process. The research on the conventional hydrogen storage bottle is focused on the situation of relatively low driving range of a fuel cell vehicle due to the adoption of a vehicle-used hydrogen storage bottle with 35 MPa operating pressure, as a result, the novel vehicle-mounted hydrogen storage bottle which has the advantages of big unit weight ratio, corrosion resistance, leakage before explosion, high operating pressure fatigue index and the like is developed.

Description

technical field [0001] The invention relates to a hydrogen storage cylinder, in particular to a 70MPa high-pressure vehicle-mounted aluminum alloy liner and carbon fiber fully wound hydrogen storage cylinder. Background technique [0002] Hydrogen energy is a clean energy that will not pollute the environment because it generates water after combustion. Therefore, scholars from various countries believe that the 21st century will be a century of hydrogen energy. At present, fuel cell technology is recognized as a bridge for the transition of human society to a hydrogen energy society, and has set off a global upsurge in key fuel cell technology research, sample development, and demonstration applications. Among them, the storage of hydrogen is one of the key parts in the development and application of fuel cells, which is of great significance to the development of fuel cells and their application in the market. Carbon fiber full-wound high-pressure hydrogen cylinder is a ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 70MPa high-pressure vehicle-mounted aluminum alloy liner full of carbon fiber winding for the current situation that the development of the existing hydrogen storage cylinders is mostly focused on the working pressure of the 35MPa vehicle-mounted hydrogen storage cylinders, resulting in a low driving range of fuel cell vehicles. Hydrogen storage cylinder; the cylinder has the advantages of large volume-to-weight ratio, corrosion resistance, leakage before explosion, and many cycles of working pressure fatigue.

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