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Proton conduction type solid oxide electrolytic tank and preparation method thereof

A solid oxide, proton conduction technology, applied in electrolytic components, electrolytic process, electrodes, etc., can solve the problems of large polarization loss, high energy consumption, and long heating time

Pending Publication Date: 2021-10-29
北京思伟特新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention aims to provide a proton-conducting solid oxide electrolytic cell and its preparation method to solve the problems of large polarization loss, long heating time and high energy consumption in the prior art

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  • Proton conduction type solid oxide electrolytic tank and preparation method thereof
  • Proton conduction type solid oxide electrolytic tank and preparation method thereof
  • Proton conduction type solid oxide electrolytic tank and preparation method thereof

Examples

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Embodiment 1

[0062] One embodiment of the present invention discloses a proton-conducting solid oxide electrolytic cell, such as figure 1 As shown, it includes a porous metal support layer 6, a cathode layer 5, an electrolyte layer 3 and an anode layer 1 sequentially from bottom to top.

[0063] The porous metal support layer 6 is made of stainless steel whose main components are ferrite and cadmium. The porous area accounts for 60%-80% of the overlapping area of ​​the porous metal support layer (6) and the cathode layer (5). The porous metal support layer 6 is used as the support of the P-SOEC. Due to the addition of the metal support part, compared with other support methods, the electrons have the least path, so the polarization loss during the operation of the electrolytic cell can be reduced. Due to the good ductility of metal and better plasticity than ceramic materials, it is convenient to process, which can reduce the processing difficulty of P-SOEC and compress the processing cos...

Embodiment 2

[0081] Optimizing on the basis of Example 1, the proton-conducting solid oxide electrolytic cell also includes a functional layer 4 and a functional layer 2, such as Figure 4 shown.

[0082] Functional layer one 4 is disposed between the cathode layer 5 and the electrolyte layer 3, and is used to improve the cavity on the upper surface of the cathode layer and smooth the surface morphology. The material used for the functional layer 4 is made by mixing the electrolyte layer material and the cathode layer material at a ratio of 1:1 and then ball milling in ethanol. This ratio can effectively reduce the contact resistance between the cathode and the electrolyte and improve the electrolysis efficiency.

[0083] The functional layer 2 is arranged between the anode layer 1 and the electrolyte layer 3, and is used to improve the void on the lower surface of the anode layer and smooth the surface morphology. The material used for the functional layer 2 is made by mixing the electr...

Embodiment 3

[0092] The present invention also discloses a method for preparing the proton-conductive solid oxide electrolytic cell described in Example 1, which is characterized in that it includes the following steps:

[0093] S1. Prepare BCZYZ powder and NiO powder respectively;

[0094] S2. Prepare the porous metal support layer 6, so that the central area of ​​the porous metal support layer 6 is a porous area, and the edge is a non-porous area, and the porous area accounts for 60% of the overlapping area of ​​the porous metal support layer 6 and the cathode layer 5. %~80%, the pore diameter is 60~100 μm, and the pore spacing is equal; specifically, ferrite and cadmium can be mixed according to the mass ratio of 17.5:82.5, followed by calcination and pore making processes to obtain the porous metal support layer 6;

[0095] S3. After mixing NiO powder and BCZYZ powder in a mass ratio of 7:3, add a binder, sequentially undergo ball milling and calcination processes to obtain cathode lay...

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Abstract

The invention provides a proton conduction type solid oxide electrolytic tank and a preparation method thereof, belongs to the technical field of solid oxide electrolytic tanks, and solves the problems of large polarization loss, overlong heating time and overhigh energy consumption in the prior art. The proton conduction type solid oxide electrolytic tank sequentially comprises a porous metal supporting layer (6), a cathode layer (5), an electrolyte layer (3) and an anode layer (1) from bottom to top. The porous metal supporting layer (6) is made of a stainless steel material with ferrite and cadmium as main components, and the porous area of the porous metal supporting layer (6) accounts for 60%-80% of the overlapping area of the porous metal supporting layer (6) and the cathode layer (5). The cathode layer (5) and the anode layer (1) are made of the same mixed material, and the main components of the material are Ni and BCZYZ; the electrolyte layer (3) is made of a material whose main component is BCZYZ. The electrolytic tank realizes the functions of multiple functions, low energy consumption and quick start.

Description

technical field [0001] The invention relates to the technical field of solid oxide electrolytic cells, in particular to a proton-conductive solid oxide electrolytic cell and a preparation method thereof. Background technique [0002] The proton-conducting solid oxide electrolytic cell (P-SOEC) is an advanced electrochemical energy conversion device, which can use the electricity and heat generated by disposable clean energy to generate H 2 O and / or CO 2 As raw materials, hydrogen or hydrocarbon fuels can be produced by efficient electrolysis to realize efficient conversion and storage of large-scale energy. Due to its high efficiency, simplicity, flexibility, and environmental friendliness, P-SOEC is currently a research hotspot in the international energy field. [0003] At present, the existing proton-conducting solid oxide electrolytic cell (P-SOEC) has large polarization loss, difficult processing and sealing, long heating time, excessive energy consumption, high elect...

Claims

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Application Information

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IPC IPC(8): C25B9/00C25B11/04C25B1/04C25B1/02C25B1/23
CPCC25B9/00C25B11/04C25B1/04C25B1/02C25B1/23Y02E60/36
Inventor 赵宇轩王恩华胡浩然刘亚迪
Owner 北京思伟特新能源科技有限公司
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