A device and method for measuring the thickness of an all-vanadium redox flow battery electrode carbon felt

Abstract

The invention discloses an apparatus and method for measuring the electrode carbon felt thickness of an all-vanadium redox flow battery. The apparatus comprises a measuring table and multiple actual measurement pressing blocks. The measuring table comprises a measuring table plane. Measuring steps are disposed on the left end and the right end of the measuring table plane. The number of measuring steps at the left end is the same as that at the right end and the measuring steps at the left end and the measuring steps at the right end are in one-to-one correspondence. The two measuring steps at the same height form a scale plane. Each actual measurement pressing block is provided with an actual measurement plane in parallel with a certain scale plane and clinging to the certain scale plane when measurement is performed. Each scale plane corresponds to an actual measurement pressing block. A dynamometer clamps a carbon felt and tows the carbon felt in order to obtain the friction of the carbon felt under the cooperative effect of the measuring table plane and the actual measurement plane. The apparatus and the method overcome a defect that the thickness of the carbon felt cannot be accurately measured in the prior art and acquire the thickness of the carbon felt by measuring the friction of the carbon felt, thereby providing other components in cooperation with the carbon felt with accurate processing basis.

Description

technical field [0001] The invention relates to the field of liquid flow batteries. Specifically, it is a device for measuring the thickness of carbon felt of an all-vanadium redox flow battery electrode and a method for using the same. Background technique [0002] All-vanadium redox flow battery is a new type of battery, which has been used more and more widely due to its long service life and environmental protection characteristics. The all-vanadium redox flow battery is mainly composed of a stack, an electrolyte and a control system. Its working principle is: use vanadium ion solutions with different valence states as the active materials of the positive and negative electrodes, and store them in their respective electrolyte storage tanks. . Driven by their own liquid supply equipment, the two electrolytes circulate through the positive or negative electrodes of the battery independently from their respective electrolyte storage tanks, and oxidation and reduction reac...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the shortcomings of the inability to accurately measure the thickness of the carbon felt in the prior art, and provide a measuring device that responds to the thickness of the carbon felt by measuring the friction force on the carbon felt, which greatly reduces the influence caused by the deformation of the carbon felt. Thereby improving the accuracy of measurement and obtaining the effective actual size of carbon felt

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