An electrolytic cell device for stable operation of hydrogen production by high-temperature electrolysis of water, preparation of the electrolytic cell, and method for using the electrolytic cell device

A stable operation, high-temperature electrolysis technology, applied in the electrolysis process, electrolysis components, cells, etc., can solve the problems of electrolytic cell performance attenuation, achieve the effect of eliminating resistance increase, low cost, and improving long-term stability

Inactive Publication Date: 2017-12-26
NORTHEAST FORESTRY UNIVERSITY
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the performance of the electrolytic cell is attenuated due to the increase of the polarization resistance of the oxygen electrode, and to provide a method for stable operation of hydrogen production by high-temperature electrolysis of water and an electrolytic cell device for realizing the method

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  • An electrolytic cell device for stable operation of hydrogen production by high-temperature electrolysis of water, preparation of the electrolytic cell, and method for using the electrolytic cell device
  • An electrolytic cell device for stable operation of hydrogen production by high-temperature electrolysis of water, preparation of the electrolytic cell, and method for using the electrolytic cell device

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specific Embodiment approach 1

[0031] Specific implementation mode 1: The preparation method of the stable operation electrolytic cell for hydrogen production by high-temperature electrolysis of water in this embodiment is carried out according to the following steps:

[0032] 1. Electrolyte preparation: Electrolyte was prepared by casting method;

[0033] 2. Preparation of electrolyte film: prepare electrolyte film by high-temperature sintering method with the electrolyte in step 1;

[0034] 3. Preparation of ceramic powder: use sol-gel method, solid-phase reaction method, glycine combustion method or citric acid combustion method to prepare ceramic powder;

[0035] 4. Preparation of porous electrodes: Mix the ceramic powder prepared in step 3 and the pore-forming agent evenly to obtain a mixture, and use screen printing to prepare symmetrical porous electrodes on both sides of the electrolyte film prepared in step 2. The porosity of the electrodes is 20 -50%; The specific steps of the screen printing met...

specific Embodiment approach 2

[0037] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the electrolyte described in step 1 is Y 2 o 3 Stable ZrO 2 Electrolyte, Sm-doped CeO 2 Electrolyte, Gd-doped CeO 2 Electrolyte, Sc stabilized ZrO 2 Electrolyte, Sr-stabilized LaGaO 3 Electrolyte, Mg stabilized LaGaO 3 One or a mixture of electrolytes. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment is different from Embodiment 1 in that the sintering temperature of the high-temperature sintering method in Step 2 is 1200°C-1600°C. Other steps and parameters are the same as those in the first embodiment.

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Abstract

The invention relates to an electrolytic cell device with high temperature steam electrolysis and stable operation functions, a preparation method of the electrolytic cell, and a using method of the electrolytic cell device, and aims to solve the problem that the performance of a conventional electrolytic cell degrades because the polarization resistance of an oxygen electrode is increased. The preparation method comprises the following steps: (1) preparing an electrolyte; (2) preparing an electrolyte thin film; (3) preparing ceramic powder; (4) preparing porous electrodes; and (5) coating the outer sides of the symmetrical porous electrodes on the two sides of the electrolyte thin film with a confluence material uniformly at sintering temperature of 700-900 DEG C, thereby obtaining the electrolytic cell. The electrolytic cell device provided by the invention comprises a reactor device, collecting pipelines and collectors, and is used for high temperature steam electrolysis. By adoption of the electrolytic cell device, the problem that the conventional electrolytic cell degrades because the polarization resistance of the oxygen electrode is increased can be solved.

Description

technical field [0001] The invention relates to an electrolytic cell device, the preparation of the electrolytic cell and the use method of the electrolytic cell device. Background technique [0002] At present, my country's rapid urbanization process and rapid economic development have led to a large consumption of fossil energy and rapid growth of carbon dioxide emissions, which has caused great pressure on the environment. Therefore, finding new clean renewable energy to replace fossil energy can solve the problem. The energy crisis can also improve my country's energy status, and it is of great significance to realize sustainable economic development. Renewable energy includes solar energy, water energy, wind energy, geothermal energy and hydrogen energy, which are characterized by abundant resources and clean use. Many countries are currently vigorously developing and utilizing sustainable energy such as wind energy, solar energy, nuclear energy and other power generati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/04C25B9/00
CPCC25B1/04C25B9/00Y02E60/36
Inventor 刘立敏王勇杨邹熊李思尹冉
Owner NORTHEAST FORESTRY UNIVERSITY
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