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Preparation method of anode supporter of tube-type solid-oxide fuel battery

A solid oxide and fuel cell technology, applied in solid electrolyte fuel cells, fuel cell components, fuel cells, etc., to achieve the effects of improving output characteristics, good output performance, and reducing ohmic resistance

Inactive Publication Date: 2008-04-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grouting slurry in the above-mentioned patents is prepared from a single YSZ solid powder, and there is no example of preparing nickel oxide (NiO)-YSZ conical tubular anode support body by the grouting molding method so far.

Method used

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  • Preparation method of anode supporter of tube-type solid-oxide fuel battery
  • Preparation method of anode supporter of tube-type solid-oxide fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] When the porous anode support body 1 is prepared by the plaster mold grouting method. In the first step, the gypsum mold is prepared by the cylindrical aluminum alloy mold shown in Figure 2a. The specific process is as follows: bake the anhydrous gypsum powder at 150°C for 5 hours, cool to room temperature and set aside; put the baked gypsum Mix the powder with water of equal mass and stir evenly to obtain gypsum slurry; quickly pour the gypsum slurry into the cylindrical metal mold shown in Figure 2a, after 30 minutes the gypsum solidifies, and the metal mold is removed to obtain the gypsum slurry shown in Figure 2c. A plaster mold for grouting the anode support tube as shown;

[0025] The second step is to inject the anode slurry into the plaster mold to obtain the anode support body. The specific process is as follows:

[0026] (1) Anode powder is obtained after uniformly mixing NiO and YSZ powders of equal mass; adding 85wt% water to the anode powder, and planetary...

Embodiment 2

[0029] When the porous anode support body 1 is prepared by the plaster mold grouting method. In the first step, the gypsum mold is prepared by the cylindrical aluminum alloy mold shown in Figure 2a. The specific process is as follows: bake the anhydrous gypsum powder at 160°C for 4 hours, and cool it to room temperature for use; Mix the powder with water of equal mass and stir evenly to obtain a gypsum slurry. Use a straw to add 3-5 drops of pyridine as a defoamer; as shown in Figure 2, quickly pour the gypsum slurry into the cylindrical metal as shown in Figure 2a In the mould, after 30 minutes, the gypsum is solidified, and the metal mold is removed to obtain the gypsum mold for grouting the anode support tube as shown in Figure 2c;

[0030] The second step is to inject the anode slurry into the plaster mold to obtain the anode support body. The specific process is as follows:

[0031] (1) The anode powder is obtained by uniformly mixing the equal mass of NiO and YSZ powder...

Embodiment 3

[0034]When the porous anode support body 1 is prepared by the plaster mold grouting method. In the first step, the gypsum mold is prepared by the cylindrical aluminum alloy mold shown in Figure 2a. The specific process is as follows: bake the anhydrous gypsum powder at 170°C for 3 hours, and cool it to room temperature for use; Mix the powder with water of equal mass, and stir evenly to obtain a gypsum slurry. Use a straw to add 3-5 drops of absolute alcohol as a defoamer; quickly pour the gypsum slurry into the cylindrical metal mold shown in Figure 2a, 30 Minutes later, the gypsum is solidified, and the metal mold is sloughed off to obtain the gypsum mold for grouting the anode support tube as shown in Figure 2c;

[0035] The second step is to inject the anode slurry into the plaster mold to obtain the anode support body. The specific process is as follows:

[0036] (1) Anode powder is obtained after uniformly mixing NiO and YSZ powders of equal mass; adding 45wt% water to ...

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Abstract

The present invention discloses a preparation method of a tube-type solid oxide fuel cell anode support body. The method comprises the preparation of a gypsum mold and the anode support body gained by injecting anode sizing agent to the gypsum mold; anode powders are gained through uniformly mixing NiO powders and YSZ powders with equal quality; water is added to the anode powders; anode injecting sizing agent is gained by planetary type ball milling; acacia as dispersant is added to the anode injecting sizing agent; the prepared anode injecting sizing agent is injected to the cavum of the gypsum mold and an anode layer is formed in the cavum of the gypsum mold; the anode tube is taken out and is presintered for 1 hour to 3 hours in the temperature between 800 DEG C and 1250 DEG C. The method can prepare anode support tubes with different shapes by changing the shape of the gypsum mold and can prepare NiO-YSZ compound anode support tubes. On the basis of the anode support tube prepared by the method of the invention, electrolytical membrane and the cathode are prepared on the anode support tube, and the battery has good output performance in a middle temperature zone (600 DEG C to 800 DEG C).

Description

Technical field: [0001] The invention relates to a method for preparing a tubular anode-supported solid oxide fuel cell and a battery pack, in particular to a method for preparing an anode support for a small tapered tube-type solid oxide fuel cell. Background technique: [0002] Solid oxide fuel cell (SOFC) is a new type of power generation device, which consists of anode, electrolyte and cathode. Both the anode and the cathode are porous ceramics, which are the place where the electrochemical reaction occurs in the battery; the electrolyte is generally a dense ceramic, and the oxidation reaction of the fuel on the anode and the reduction reaction of the oxidant on the cathode occur on both sides of the dense electrolyte, so that The oxidation and reduction reactions are spatially separated so that the battery reactions can generate a net current; the oxygen ions or protons involved in the electrochemical reactions are transported through the electrolyte. [0003] The Chin...

Claims

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Application Information

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IPC IPC(8): H01M4/88H01M8/02H01M8/10H01M8/24H01M8/0273H01M8/1213H01M8/1226H01M8/243
CPCY02E60/522Y02E60/50Y02P70/50
Inventor 刘江张耀辉隋静袁文生殷娟丁姣
Owner SOUTH CHINA UNIV OF TECH
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