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Solid electrolyte direct carbon fuel cell

A solid electrolyte and fuel cell technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve the problems of high volatility and high corrosion of molten electrolyte, and achieve the effects of reduced emissions, simple operation, and high energy efficiency

Inactive Publication Date: 2009-09-23
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned DCFCs all use molten carbonate or molten hydroxide as the electrolyte; the molten electrolyte has the disadvantages of volatility, high corrosiveness, and hidden dangers of leakage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 Direct carbon fuel cell in which graphite is directly used as fuel

[0047] The structure prepared by dip molding method is: NiO-YSZ / SSZ / LSM-SSZ tubular solid oxide fuel cell, the cell wall thickness is about 0.5-0.8mm, the outer diameter is about 1.0cm, the length is about 12cm, and the cathode area is 10cm 2 . Graphite powder is filled in the tubular battery and is in direct contact with the anode of the battery. When the temperature is high, the battery is sealed with a high-temperature sealing material, and the inside of the battery is connected with the outside by a pressure balance tube. When there is a lot of reformed gas generated, it can be collected in a container; The reformed gas is passed into the pipe. Oxygen was fed into the cathode at 60 ml / min. When the battery is working, a small amount of water is added to the inside of the battery, so that carbon and water first undergo a reformation reaction inside the battery, and the electricity gener...

Embodiment 2

[0048] Example 2 Direct carbon fuel cell in which carbon black is directly used as fuel

[0049] On the basis of Example 1, the battery increases the anode active layer structure, that is, the structure is: a tubular solid oxide fuel cell of NiO-YSZ / NiO-SSZ / SSZ / LSM-SSZ, and then the graphite fuel is changed to carbon black fuel Perform a power generation test. Its electrical properties are as attached image 3 shown.

Embodiment 3

[0050] Example 3 Charcoal + cerium oxide direct carbon fuel cell as fuel

[0051] On the basis of embodiment 2, increase the cathode layer for electricity collection, that is, the structure is: a tubular solid oxide fuel cell of NiO-YSZ / NiO-SSZ / SSZ / LSM-SSZ / LSM, and then change the carbon black fuel into charcoal+ Cerium oxide was used as fuel for power generation test. Its electrical properties are as attached Figure 4 shown.

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Abstract

The invention relates to solid electrolyte direct carbon fuel cell. In the invention, tube-type batteries serve as the electrochemical reaction device, the inner layer of the batteries is anode, the intermediate layer is the electrolyte and the outer layer is cathode, carbon fuel is filled in the tube-type batteries. The carbon fuel cell of the invention features high energy efficiency, sound environmental protection property, a theoretic efficiency being 2-3 times of the generating efficiency of the existing coal power plants, reduction of discharge of greenhouse gas CO2, no generation of acidic gases such as nitrogen oxide and sulfide, no possible danger of liquid leakage and gas explosion and fine electrochemistry property.

Description

technical field [0001] The invention relates to a solid electrolyte direct carbon fuel cell and a preparation method thereof, belonging to the technical field of fuel cells. Background technique [0002] In recent years, with the development of economy, my country's energy shortage has become increasingly serious. At the same time, in my country's current energy structure, coal power generation accounts for about 68% of the total power generation, which has brought serious environmental loads. When coal is burned to generate electricity, a large amount of greenhouse gas carbon dioxide is released, and toxic and harmful nitrogen oxides, sulfur dioxide and other polluting gases are also produced. Therefore, how to efficiently and cleanly utilize coal resources has become a top priority. [0003] Fuel cell technology is a high-efficiency power generation technology that directly converts chemical energy in fuel into electrical energy without undergoing a combustion process. ...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/12H01M8/1009H01M8/122H01M8/1233
CPCY02E60/521Y02E60/525Y02E60/50
Inventor 王绍荣刘仁柱赵春花李军良
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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