Composite diaphragm for reducing energy consumption of hydrogen production by alkaline electrolyzed water

Abstract

The invention discloses a composite diaphragm for reducing energy consumption of hydrogen production by alkaline electrolyzed water. The composite diaphragm comprises a water electrolyzer and a composite diaphragm body, three electrodes are arranged in the water electrolyzer, the composite diaphragm body is arranged at the bottom end in the water electrolyzer, and a plurality of through holes are formed in the surface of the composite diaphragm body. The surface of thecomposite diaphragm body is provided with the plurality of through holes, so the composite diaphragm can be used for passing through generated hydrogen and oxygen, the contact area between the electrolyte and the electrode material can be greatly increased, the real current density of the surface of the electrode can be effectively reduced in the industrial electrolysis process with relatively high current density, and the hydrogen evolution overpotential of the electrode in the electrolysis reaction process is greatly reduced, therefore, the cost of hydrogen production through water electrolysis is reduced, the efficiency of hydrogen production through water electrolysis is improved, the main problems of high energy consumption and low efficiency of hydrogen production through water electrolysis at present and the problem that 80-90% of cost is electric charge in water electrolysis production are solved, and the cost of hydrogen production through water electrolysis is greatly saved.

Description

technical field [0001] The invention relates to the technical field of composite diaphragms, in particular to a composite diaphragm that reduces energy consumption for hydrogen production by alkaline electrolysis of water. Background technique [0002] The diaphragm is a thin film used to separate the positive and negative poles during the electrolytic reaction to prevent energy loss from direct reaction in the electrolytic cell. In the structure of lithium batteries, the separator is one of the key inner components. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. A separator with excellent performance plays an important role in improving the overall performance of the battery. [0003] The reverse water vapor shift reaction between carbon dioxide and hydrogen produces carbon monoxide, which will be adsorbed in the catalyst of the fue...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a composite diaphragm that reduces the energy consumption , 80% to 90% of the cost is the problem of electricity

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