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Method for preparing solid oxide fuel cells in one step

A solid oxide and fuel cell technology, applied in the direction of solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve the problems of increasing the cost of battery preparation, long preparation process, etc., achieve good electrochemical catalytic activity, simple preparation method, The effect of shortened time

Active Publication Date: 2022-07-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the different sintering temperatures of the anode and cathode (anode: 1200~1400°C; cathode: 1000~1200°C), multiple coating-sintering processes are required, and the preparation process is long, which increases the cost of battery preparation

Method used

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  • Method for preparing solid oxide fuel cells in one step
  • Method for preparing solid oxide fuel cells in one step
  • Method for preparing solid oxide fuel cells in one step

Examples

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Effect test

Embodiment 1

[0022] Example 1: Preparation of batteries

[0023] (1) YSZ (Tosoh Company, Japan) powder was prepared into an electrolyte support body by dry pressing, and then sintered at 1450 ° C for 5 hours to obtain a circular sheet with a thickness of 0.35 mm, and then the electrolyte support body was placed on one side. Spin-coat a layer of 1 μm thick GDC (AGC Seimi Chemical Co., Japan) as the isolation layer, and sinter at 1150 °C for 2 hours;

[0024] (2) After mixing NiO (Aladdin Company) and GDC (Japan AGC Seimi Chemical Company) in a mass ratio of 4:1, put them together with a terpineol binder containing 4% ethyl cellulose in a mass ratio of 6:4. Put it into an agate mortar and grind it evenly to obtain anode slurry;

[0025] (3) Put the cathode LSCF (Sofren Company) and the terpineol binder containing 4% ethyl cellulose into the agate mortar at a mass ratio of 7:3, and fully grind them to obtain a cathode slurry;

[0026] (4) Coating the cathode slurry on one side of the electr...

Embodiment 2

[0028] Example 2: Preparation of batteries

[0029] (1) The electrolyte support body was prepared by dry pressing the SSZ (Sofren Company) powder, and then sintered at 1450 °C for 5 hours to obtain a circular sheet with a thickness of 0.35 mm, and then the electrolyte support body was placed on the side of the electrolyte support body. Spin-coat a layer of 1 μm thick GDC (AGC Seimi Chemical Co., Japan) as the isolation layer, and sinter at 1150 °C for 2 hours;

[0030] (2) After mixing NiO (Aladdin Company) and GDC (Japan AGC Seimi Chemical Company) in a mass ratio of 4:1, put them together with a terpineol binder containing 4% ethyl cellulose in a mass ratio of 6:4. Put it into an agate mortar and grind it evenly to obtain anode slurry;

[0031] (3) Put the cathode LSCF (Sofren Company) and the terpineol binder containing 4% ethyl cellulose into the agate mortar at a mass ratio of 7:3, and fully grind them to obtain a cathode slurry;

[0032] (4) Coating the cathode slurry ...

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Abstract

The invention discloses a method for preparing a solid oxide fuel cell in one step. The anode slurry and cathode slurry are respectively coated on both sides of the electrolyte sheet, and baked at a certain temperature for a certain period of time, then the electrolyte sheet is placed at a certain temperature to reduce the anode, and then a current is applied to it for a period of time. , that is, the preparation of electrolyte-supported solid oxide fuel cells is completed. Compared with the traditional high-temperature sintering method for preparing batteries, the method of the present invention greatly shortens the preparation process of the battery, avoids the traditional high-temperature sintering steps, and reduces the preparation cost of the battery, and the battery prepared by this method has the same advantages as those prepared by traditional sintering. The output performance of the battery is comparable, and there is a great application prospect in the commercialization of SOFC.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a method for preparing a solid oxide fuel cell (SOFC) in one step. Background technique [0002] With the rapid development of global industry and population growth, human beings have an increasing demand for new energy. In response to the demand for new energy technologies, human beings are also constantly developing different new energy technologies. ) technology is one option. SOFC is a new type of power generation device with all-solid-state structure, which has the advantages of high energy conversion efficiency, low pollution emission, and wide range of fuel applications. In the actual commercial application of SOFC, many factors need to be considered, among which the exploration of battery preparation process is one of the key factors. [0003] The preparation of traditional SOFC requires high temperature sintering to form a good contact interface between the electrode and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/00H01M4/88H01M8/12
CPCH01M8/00H01M4/8882H01M4/8885H01M4/8889H01M8/12H01M2008/1293Y02P70/50
Inventor 陈孔发张飞鸿陈志逸艾娜乐忠威
Owner FUZHOU UNIV
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