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Solid oxide fuel cell based on proton conduction type electrolyte and preparation method

A solid oxide, fuel cell technology, used in solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve problems affecting the health of environmental experimenters, achieve small interface impedance, expand application scenarios, and avoid internal carbon deposition. Effect

Active Publication Date: 2021-05-07
WANHUA CHEM (SICHUAN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, no matter what kind of conductive electrolyte material is used for SOFC devices, the conventional preparation process is based on the traditional process of ceramic casting and screen printing, and a large amount of organic additives are used in the process, which seriously affects the environment and the health of experimenters.

Method used

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  • Solid oxide fuel cell based on proton conduction type electrolyte and preparation method
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  • Solid oxide fuel cell based on proton conduction type electrolyte and preparation method

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preparation example Construction

[0038] 1) Preparation of targets: prepare anode targets, electrolyte targets and cathode targets respectively;

[0039] 2) On the substrate material, the anode layer, the electrolyte layer, and the cathode layer are sequentially sputtered and deposited by a magnetron sputtering process to obtain the precursor of the solid oxide fuel cell device; preferably, the anode layer and the anode layer are sequentially sputtered and deposited a transition layer, an electrolyte layer, a cathode transition layer, and a cathode layer to obtain the precursor of the solid oxide fuel cell device;

[0040] 3) Sintering the device precursor of the solid oxide fuel cell at high temperature and reducing the anode of the device to obtain the solid oxide fuel cell.

[0041] In step 1), the preparation of the target is to prepare the electrolyte target, the anode target and the cathode target containing the pore-forming agent, and the target is prepared by a two-step isostatic pressing method. Part...

Embodiment 1

[0056] Make the specific surface area 1-3m 2 NiO powder per gram and carbon powder with a particle size of 0.5-1 μm accounting for 3% by mass are uniformly mixed in a dry mixer, and then the anode NiO sputtering target is made by a two-step isostatic pressing method. During cold isostatic pressing, the pressure is maintained at 130MPa, the temperature is 100°C, and the time is 4 hours. During hot isostatic pressing, the pressure is maintained at 80MPa, the time is 3 hours, the temperature is maintained at 800°C, and argon is used as a protective gas.

[0057] Make the specific surface area 10-12m 2 / g BaCe 0.6 Zr 0.3 Y 0.1 o 3-δ The powder was fabricated into electrolyte BCZY sputtering targets using a two-step isostatic pressing method. During cold isostatic pressing, the pressure is maintained at 180MPa, the temperature is 150°C, and the time is 5 hours. During hot isostatic pressing, the pressure is maintained at 100MPa, the time is 2.5 hours, the temperature is mainta...

Embodiment 2

[0062] Make the specific surface area 3-5m 2 NiO powder per gram and carbon powder with a particle size of 0.5-1.5 μm accounting for 1% by mass are uniformly mixed in a dry mixer, and then the anode NiO sputtering target is made by a two-step isostatic pressing method. During cold isostatic pressing, the pressure is maintained at 180MPa, the temperature is 150°C, and the time is 3 hours. During hot isostatic pressing, the pressure is maintained at 130MPa, the time is 3.5 hours, the temperature is maintained at 700°C, and argon is used as a protective gas.

[0063] Make the specific surface area 12-15m 2 / g BaCe 0.5 Zr 0.4 Nd 0.1 o 3-δ The powder was fabricated into an electrolyte BCZN sputtering target using a two-step isostatic pressing method. During cold isostatic pressing, the pressure is maintained at 200MPa, the temperature is 160°C, and the time is 4 hours. During hot isostatic pressing, the pressure is maintained at 140MPa, the time is 3 hours, the temperature is ...

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Abstract

The invention discloses a solid oxide fuel cell based on proton conduction type electrolyte and a preparation method of the solid oxide fuel cell. An electrolyte material in a traditional SOFC single cell is replaced by a CD<1-x>M<x>O<3-delta> type perovskite structure proton conduction type electrolyte material; acathode material of an AA'B2O6-delta type double-layer perovskite structure is also adopted; the anode layer and the cathode layer of the SOFC single cell are both prepared from a metal oxide target material containing a pore-forming agent through magnetron sputtering; and an electrolyte layer is prepared from the metal oxide target material without the pore-forming agent through magnetron sputtering. The method is wide in material selection and simple in preparation process; organic solvents, binders, plasticizers, activators, other organic auxiliaries and the like are not used in the whole process; and the method belongs to environment-friendly processing preparation means and technological processes.

Description

technical field [0001] The invention belongs to the technical field of solid oxide fuel cells (SOFC), and in particular relates to a solid oxide fuel cell based on a proton-conductive electrolyte and a preparation method. Background technique [0002] Because the traditional SOFC single cell uses an oxygen ion-conducting electrolyte, the electrochemical reaction of the cathode part dominates the reaction of the entire battery, but the LSM (strontium-doped lanthanum manganate) and LSCF (strontium strontium) used in the traditional SOFC single cell The catalytic activity and ionic conductivity of iron-doped lanthanum cobaltate) materials are relatively low, thus greatly affecting the performance of the whole battery. [0003] Traditional SOFC cells based on oxygen-ion-conducting electrolytes have disadvantages such as high operating temperature (650-850°C), large internal impedance, and easy carbon deposition, which limits their application scenarios and greatly affects their ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/90H01M4/88H01M8/12H01M8/1246
CPCH01M4/8605H01M4/9033H01M4/8803H01M4/8871H01M8/1246H01M8/12H01M2008/1293Y02E60/50
Inventor 周霖王洪武张洁孙家宽
Owner WANHUA CHEM (SICHUAN) CO LTD
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