Real-time pressurizing and heating testing device and testing method for fuel cell

Abstract

The invention relates to a real-time pressurizing and heating testing device and method for a fuel cell. The device comprises a supporting bracket, a pressurizing assembly and a heating assembly. The pressurizing assembly is mounted at the tail part of the supporting bracket, and the heating assembly is mounted at the head part of the supporting bracket. The pressurizing assembly and the heating assembly are detachably mounted. The heating assembly comprises two heating end plates (310) which are perpendicularly arranged, and a to-be-tested piece (410) is clamped between the two heating end plates (310). The pressurizing direction of the pressurizing assembly is parallel to the normal direction of the fuel cell. Compared with the prior art, the device and the method have the advantages of simple operation, good controllability, accurate test and the like.

Description

technical field [0001] The invention relates to the technical field of battery packaging pressure testing and analysis, in particular to a real-time pressure heating testing device and testing method for fuel cells. Background technique [0002] Proton exchange membrane fuel cells are considered to be one of the most potential development directions of new energy vehicles in the future because of their high power generation efficiency, wide range of energy sources and no environmental pollution during operation. The fuel cell mainly includes components such as membrane electrodes, bipolar plates, sealing rings, collector plates, and end plates. The structure, material properties and assembly method of each component in the fuel cell have a very important impact on the power generation efficiency and durability of the cell. Therefore, optimizing the structure, material properties and assembly methods of fuel cell components to improve their performance and life is one of the...

AI Technical Summary

Problems solved by technology

Existing pressure distribution testing instruments are difficult to analyze the stress distribution of component structures below 1 mm in size, and currently there is no commercial instrument that can apply a specific assembly force to the fuel cell while placing it under a microscope or other tools for observation

In addition, when observing the deformation of fuel cell components, the influence of temperature on the force and deformation of the components is generally not considered

Chinese patent document CN102128702B proposes a pneumatic pressure testing device and method that can be automated and equipped with pressure testing conditions, but microscopic observation cannot be performed with this device, and the tested piece cannot be heated at the same time

The Chinese document patent CN207381503U proposes an internal pressure test device for a square aluminum shell battery, which can apply a specific pressure to the test piece, and can also realize observation under a microscope tool, but the pressure application speed and pressure magnitude in this device cannot be accurate control, and it is also impossible to achieve real-time heating of the test piece

Chinese literature patent CN209148440U proposes a gantry pressure testing device, but the device is mainly for the testing of larger devices, and cannot apply pressure horizontally, so microscopic observation cannot be realized

Chinese literature patent CN207488081U proposes a mobile phone screen pressure testing device, but the device can only provide a small pressure, and cannot be placed under a microscope tool for observation

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