A kind of preparation method of solid oxide fuel cell gasket

A solid oxide, fuel cell technology, used in fuel cell parts, fuel cells, sealing/supporting devices, etc., can solve problems such as excess material recovery, and achieve the effect of eliminating waste recycling and saving raw materials

Active Publication Date: 2016-01-13
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

[0004] The purpose of the present invention is to overcome the above disadvantages and provide a preparation method of solid oxide fuel cell gaskets, which not only saves sealing materials, but also solves the problem of recycling excess materials

Method used

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  • A kind of preparation method of solid oxide fuel cell gasket
  • A kind of preparation method of solid oxide fuel cell gasket
  • A kind of preparation method of solid oxide fuel cell gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 160g of sealing material powder, add 35g of butyl acetate solvent, add 7g of dispersant, and use a planetary ball mill at 300 rpm for 1 hour to mix. Then add 5g of binder and 5g of plasticizer, and use a planetary ball mill at a speed of 399 rpm for 1 hour to mix evenly to obtain a stable slurry with a moderate viscosity. After the slurry is sieved through a 80-mesh sieve and subjected to vacuum defoaming treatment, it is coated on a mold, dried and molded to obtain a sealing gasket.

Embodiment 2

[0039] Weigh 150g of sealing material powder, add 35g of butyl acetate solvent, add 6g of dispersant, and use a planetary ball mill at 350 rpm for 1 hour to mix. Then add 5g of binder and 5g of plasticizer, and use a planetary ball mill at a speed of 400 rpm for 1 hour to mix evenly to obtain a stable slurry with a moderate viscosity. After the slurry is sieved through a 100-mesh sieve and vacuum degassed, it is coated on a mold, dried and molded to obtain a sealing gasket.

Embodiment 3

[0041] Weigh 160g of sealing material powder, add 35g of butyl acetate solvent, add 8g of dispersant, and use a planetary ball mill at 290 rpm for 2 hours to mix. Then add 6g of binder and 5g of plasticizer, and use a planetary ball mill at a speed of 399 rpm for 2 hours to mix evenly to obtain a stable slurry with a moderate viscosity. After the slurry is sieved through a 150-mesh sieve and subjected to vacuum defoaming treatment, it is coated on a mold, dried and molded to obtain a sealing gasket.

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PUM

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Abstract

The invention provides a preparation method of a solid oxide fuel cell gasket, comprising the following steps: grinding and mixing the raw materials of the gasket, wherein the solvent content is 10-40wt%, the dispersant content is 1-10wt%, and the viscous The binder content is 1-10wt%, the plasticizer content is 1-10wt%; the slurry obtained in step 1 is sieved, and degassed; the slurry processed in step 2 is coated on the mold, dried and formed, A gasket is produced. The preparation method saves raw materials, avoids the problem of recycling waste materials, is easy to produce in batches and has good stability.

Description

technical field [0001] The invention relates to a preparation method of a sealing gasket, in particular to a preparation method of a solid oxide fuel cell sealing gasket. Background technique [0002] The main components of a flat solid oxide fuel cell stack are: a single cell composed of an electrolyte, a cathode, and an anode, a metal connector with a gas channel, and a sealing material between the battery cell and the metal connector. The sealing material is mainly to realize the isolation between fuel gas and oxidizing gas and between fuel gas, oxidizing gas and the outside world, which directly affects the normal operation of the battery and the performance of the battery. In order to ensure the normal operation of the solid oxide fuel cell (SOFC) To work, the sealing material must provide sufficient airtightness to avoid the mixed explosion caused by the sealing failure and leakage of single cells, connectors and other components. At the same time, the sealing material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/0286
CPCH01M8/0276H01M8/028H01M8/0286H01M2008/1293Y02E60/50Y02P70/50
Inventor 钱继勤王绍荣吴昊仲崇英聂怀文叶晓峰占忠亮
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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