Simple preparation method for anode support of solid oxide fuel cell

A technology of anode support and solid oxide, which is applied in the direction of fuel cells, circuits, electrical components, etc., to achieve the effects of fast molding, small batch production, and low shrinkage

Inactive Publication Date: 2017-10-20
云南探源者科技股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a simple preparation method for solid oxide fuel cell anode support for the defects and deficiencies of the prior art, which can realize the preparation of a relatively simple and flexible porous anode support without technical process There is the problem that it is difficult to prepare the uniform mixed slurry of two kinds of powders, which saves the cost and improves the preparation efficiency. It has the advantages of fast molding, easy operation and small batch production.

Method used

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  • Simple preparation method for anode support of solid oxide fuel cell
  • Simple preparation method for anode support of solid oxide fuel cell
  • Simple preparation method for anode support of solid oxide fuel cell

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preparation example Construction

[0030] Such as Figure 1-Figure 3 As shown, the simple preparation method of a solid oxide fuel cell anode support described in this specific embodiment adopts the following method steps:

[0031] Step 1: slurry preparation, the steps adopted are as follows:

[0032] 1) Nickel oxide (NiO), 8mol% yttrium oxide stabilized zirconia (YSZ), graphite powder and organic additives are ball milled and mixed for 3-4h to form a suspension slurry; wherein: the weight ratio of NiO and YSZ is 1:1;

[0033] II) the organic additive in the step I is polyvinyl butyral, triethanolamine, polyethylene glycol, di-n-octyl phthalate and dehydrated alcohol;

[0034] III) Nickel oxide, 8mol% yttria-stabilized zirconia, graphite powder, polyvinyl butyral, triethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethanol in the suspension slurry The weight percentage is 16-18%: 16-18%: 2-4%: 5-8%: 1.5-2%: 3-4%: 3-4%: 45-47%;

[0035] IV) During preparation, during the high-speed ball mi...

specific Embodiment approach 1

[0045] Such as Figure 1-Figure 2 As shown, the preparation method of the porous anode support body of the solid oxide fuel cell of the present invention adopts the following method steps:

[0046] Step 1: Slurry preparation:

[0047] Nickel oxide (NiO), 8mol% yttrium oxide stabilized zirconia (YSZ) (NiO and YSZ weight ratio 1:1), graphite powder and organic additive ball milling mixed for 3h to form a suspension slurry; the organic additive is polyvinyl alcohol Butyral, triethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethanol; the nickel oxide, 8mol% yttria-stabilized zirconia, graphite powder, polyvinyl butyral, three The weight percentages of ethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethanol are 18%: 18%: 4%: 5%: 1.5%: 3%: 3%: 47%. By vacuuming, the slurry is placed in a vacuum rotator to reduce the pressure to -2MPa, and the air bubbles in the slurry are removed to obtain a stable and uniform anode slurry.

[0048] Step ...

specific Embodiment 2

[0054] The preparation method of the porous anode support body of the solid oxide fuel cell of the present invention adopts the following method steps:

[0055] Step 1: Slurry preparation:

[0056] Nickel oxide (NiO), 8mol% yttria-stabilized zirconia (YSZ) (NiO and YSZ weight ratio 1:1), graphite powder and organic additive ball milling mixed for 4h to form a suspension slurry; the organic additive is polyvinyl alcohol Butyral, triethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethanol; the nickel oxide, 8mol% yttria-stabilized zirconia, graphite powder, polyvinyl butyral, three The weight percent of ethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethanol is 16%: 16%: 2%: 5%: 1.5%: 3%: 3%: 45%. By vacuuming, the slurry is placed in a vacuum rotator to reduce the pressure to -2MPa, and the air bubbles in the slurry are removed to obtain a stable and uniform anode slurry.

[0057] Step 2: Squeegee forming:

[0058] First, paste two se...

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Abstract

The invention relates to the technical field of preparation of a solid oxide fuel cell and specifically relates to a simple preparation method for an anode support of the solid oxide fuel cell. The method comprises the following steps: 1) preparing a sizing agent: ball-milling and mixing NiO and YSZ at a weight ratio of 1:1, graphite powder and an organic additive for 3-4h, thereby forming a suspending sizing agent, wherein the organic additive includes polyvinyl butyral, triethanolamine, polyethylene glycol, di-n-octyl phthalate and absolute ethyl alcohol and the weight percent ratio of NiO to YSZ to graphite powder to polyvinyl butyral to triethanolamine to polyethylene glycol to di-n-octyl phthalate to absolute ethyl alcohol is (16-18%):(16-18%):(2-4%):(5-8%):(1.5-2%):(3-4%):(3-4%):(45-47%); 2) molding by adopting a scraper: pouring the anode sizing agent onto a glass plate, using the scraper for uniformly and smoothly filling the sizing agent into a glass carrier area between the adhesive tapes and molding; and 3) sintering under a high temperature. The method has the advantages of fast molding, simple and convenient operation, capability of realizing small scale production, and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of preparation of solid oxide fuel cells, in particular to a simple preparation method for an anode support body of a solid oxide fuel cell. 【Background technique】 [0002] Solid Oxide Fuel Cell (SOFC for short) is an energy conversion device with all solid-state components, including solid electrolyte materials, anode materials, cathode materials and connection materials, all of which are all ceramic structures. Compared with other types of fuel cells, the use of The material is relatively cheap, there is no liquid involved in the fuel cell, and the electrolyte is relatively stable, so SOFC has the following obvious advantages and characteristics, making it more attractive than other types of fuel cells: ① Using all solid components, there is no material corrosion and electrolysis The problem of liquid leakage; ②Using all solid-state components, there is no problem of material corrosion and electrolyte le...

Claims

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Application Information

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IPC IPC(8): H01M8/0271H01M8/1226
CPCH01M8/0271H01M8/1226Y02E60/50Y02P70/50
Inventor 肖杰
Owner 云南探源者科技股份有限公司
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