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Solid oxide fuel battery and preparation method thereof

A solid oxide, fuel cell technology, used in fuel cells, battery electrodes, circuits, etc., can solve problems affecting battery performance, large concentration polarization, unsuitable for preparation, etc., achieve good tolerance, and prevent sintering and agglomeration. , the effect of improving mechanical strength and electrochemical performance

Inactive Publication Date: 2019-03-26
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dry pressing method is not suitable for the preparation of large-sized single cells
Traditional tape-casting preparation technology, the porous support formed by the natural accumulation of pore-forming agent and powder particles, the diffusion channel of the electrode reaction gas is tortuous, often resulting in a large concentration polarization, which affects the performance of the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A solid oxide fuel cell proposed by the present invention includes an anode support structure layer, an anode function layer, an electrolyte layer, a cathode function layer and a cathode support structure layer;

[0031] A method for preparing a solid oxide fuel cell, comprising the steps of:

[0032] S1: Blank preparation of anode support structure layer and cathode support structure layer: Weigh nickel oxide accounting for 55% of the blank sample, then weigh yttrium-stabilized zirconia accounting for 45% of the blank sample, and use alcohol as the mixing base Liquid, make the weighed blank material fully mixed in the mixer, then add diatomaceous earth with a content controlled at 2% to the mixer, make it fully mixed in the mixer, grind the material for 10 minutes, and then dry it with red light processing, and then use the tablet press to make the blank material into a columnar sample. The working pressure of the tablet press is set to 180MPa, and then the blank sampl...

Embodiment 2

[0039] A solid oxide fuel cell proposed by the present invention includes an anode support structure layer, an anode function layer, an electrolyte layer, a cathode function layer and a cathode support structure layer;

[0040] A method for preparing a solid oxide fuel cell, comprising the steps of:

[0041] S1: Blank preparation of anode support structure layer and cathode support structure layer: Weigh nickel oxide accounting for 55% of the blank sample, then weigh yttrium-stabilized zirconia accounting for 45% of the blank sample, and use alcohol as the mixing basis Liquid, make the weighed blank material fully mixed in the mixer, then add diatomaceous earth with a content controlled at 3% to the mixer, make it fully mixed in the mixer, grind the material for 10 minutes, and then dry it with red light processing, and then use the tablet press to make the blank material into a columnar sample. The working pressure of the tablet press is set to 180MPa, and then the blank sample...

Embodiment 3

[0048] A solid oxide fuel cell proposed by the present invention includes an anode support structure layer, an anode function layer, an electrolyte layer, a cathode function layer and a cathode support structure layer;

[0049] A method for preparing a solid oxide fuel cell, comprising the steps of:

[0050] S1: Blank preparation of anode support structure layer and cathode support structure layer: Weigh nickel oxide accounting for 55% of the blank sample, then weigh yttrium-stabilized zirconia accounting for 45% of the blank sample, and use alcohol as the mixing basis Liquid, make the weighed blank material fully mixed in the mixer, then add diatomaceous earth whose content is controlled at 4% to the mixer, make it fully mixed in the mixer, grind the material for 10 minutes, and then dry it with red light processing, and then use a tablet press to make the blank material into a columnar sample. The working pressure of the tablet press is set to 200MPa, and then the blank samp...

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Abstract

The invention discloses a solid oxide fuel battery and a preparation method thereof. The preparation method comprises the following steps: S1, weighing nickel oxide which is 55 percent of weight of ablank sample, weighing yttria-stabilized zirconia which is 45 percent of weight of the blank sample; S2, weighing 0.5-1.0g of cerium dioxide rare-earth oxide with a precise electronic scale, weighinga cobalt-containing metal ceramic material which is 45-65 percent by mass of the blank material; S3, weighing a cathode functional layer raw material; S4, weighing 0.3-0.8g of cerium dioxide based oxide, weighing trivalent rare earth metal oxide which is 30-45 percent by mass of the blank material; and S5, discharging plastics from the anode supporting structural layer, the anode functional layer,the cathode functional layer and the cathode support structural layer, and performing multi-layer co-firing treatment to obtain a solid fuel battery. According to the preparation method, the batterypreparation stability is improved, the conductivity of the fuel battery is improved, and the use performance of the solid oxide fuel battery is ensured.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a solid oxide fuel cell and a preparation method thereof. Background technique [0002] Solid oxide fuel cells (SOFC) have the advantages of high power generation efficiency, low emissions, wide adaptability to various fuel gases, and high value of waste heat utilization. One of the strategic technologies. According to the operating temperature, solid oxide fuel cells (SOFC) can generally be divided into three types: high-temperature SOFC, medium-temperature SOFC and low-temperature SOFC. A solid oxide fuel cell (SOFC) is a device that directly converts chemical energy into electrical energy at high temperatures (500-1000°C). [0003] Compared with other fuel cells, SOFC has the following advantages: high energy conversion efficiency; wide range of fuel adaptation, can directly use small molecular hydrocarbons as fuel; no need for precious metal catalysts; all-solid installa...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/88H01M4/90H01M8/126
CPCH01M4/8657H01M4/8663H01M4/8803H01M4/8864H01M4/8875H01M4/9016H01M4/9041H01M8/126H01M2300/002Y02E60/50
Inventor 宋昭远许星光龙文张雷张磊磊
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY