Method for preparing proton conductive film fuel cell by spin-coating process

A proton conductive membrane, fuel cell technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve the problems of proton conductors hindering application, large internal resistance of proton conductors, etc., to achieve small grains, uniform composition and structure, Beneficial to industrial production

Inactive Publication Date: 2011-09-28
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Proton conductors have attracted people's attention because of their good proton conductivity in the medium temperature region (600-800 °C). The internal resistance of proton conductors is very large, so the problem of thin film proton conductors hinders its application.

Method used

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  • Method for preparing proton conductive film fuel cell by spin-coating process
  • Method for preparing proton conductive film fuel cell by spin-coating process
  • Method for preparing proton conductive film fuel cell by spin-coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The present invention is a kind of adopting spin coating method to prepare SrCe 0.95 Y 0.05 o 2.975 A method for a proton-conducting membrane fuel cell, comprising the following steps:

[0057] Step 1: Make the mixed powder

[0058] Strontium carbonate SrCO 3 , cerium oxide CeO 2 and yttrium oxide Y 2 o 3 Put it into a ball mill and mill it for 5 hours to obtain a mixed powder with a particle size of 30-60 μm;

[0059] Dosage: 100g of mixed powder contains 46.6g of strontium carbonate SrCO 3 , 51.6g of cerium oxide CeO 2 and 1.8 g of yttrium oxide Y 2 o 3 ;

[0060] Step 2: Prepare raw material powder

[0061] Treat the mixed powder prepared in step 1 at a drying temperature of 100° C. for 15 hours to obtain raw material powder;

[0062] Step 3: Preparation of SrCe 0.95 Y 0.05 o 2.975 powder

[0063] The mixed powder prepared in step 1 was kept at a sintering temperature of 1200°C for 10 hours to obtain a precursor powder;

[0064] Step 4: Fabricate th...

Embodiment 2

[0080] The present invention is a kind of adopting spin coating method to prepare SrCe 0.9 Y 0.1 o 2.95 A method for a proton-conducting membrane fuel cell, comprising the following steps:

[0081] Step 1: Make the mixed powder

[0082] Strontium carbonate SrCO 3 , cerium oxide CeO 2 and yttrium oxide Y 2 o 3 Put it into a ball mill and mill it for 10 hours to obtain a mixed powder with a particle size of 30-60 μm;

[0083] Dosage: 100g of mixed powder contains 47.0g of strontium carbonate SrCO 3 , 49.3g of cerium oxide CeO 2 and 3.7 g of yttrium oxide Y 2 o 3 ;

[0084] Step 2: Prepare raw material powder

[0085] Treat the mixed powder prepared in step 1 at a drying temperature of 120° C. for 10 hours to obtain raw material powder;

[0086] Step 3: Preparation of SrCe 0.9 Y 0.1 o 2.95 powder

[0087] The mixed powder prepared in step 1 was kept at a sintering temperature of 1400°C for 6 hours to obtain a precursor powder;

[0088] Step 4: Fabricate the fuel...

Embodiment 3

[0105] The present invention is a kind of adopting spin coating method to prepare SrCe 0.8 Y 0.2 o 2.9 A method for a proton-conducting membrane fuel cell, comprising the following steps:

[0106] Step 1: Make the mixed powder

[0107] Strontium carbonate SrCO 3 , cerium oxide CeO 2 and yttrium oxide Y 2 o 3 Put it into a ball mill and mill it for 3 to 12 hours to obtain a mixed powder with a particle size of 30 to 60 μm;

[0108] Dosage: 100g of mixed powder contains 47.9g of strontium carbonate SrCO 3 , 44.8g of cerium oxide CeO 2 and 7.3 g of yttrium oxide Y 2 o 3 ;

[0109] Step 2: Prepare raw material powder

[0110] Treat the mixed powder prepared in step 1 at a drying temperature of 150° C. for 10 hours to obtain raw material powder;

[0111] Step 3: Preparation of SrCe 0.8 Y 0.2 o 2.9 Powder

[0112] The mixed powder prepared in step 1 was kept at a sintering temperature of 1300°C for 10 hours to obtain a precursor powder;

[0113] Step 4: Fabricate the...

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Abstract

The invention discloses a method for preparing proton current-conducting membrane fuel cell by adopting a spin coating method. The method is as follows: the mixing powder is dried for obtaining raw material powder; the raw material powder is directly spin-coated for preparing the proton current-conducting membrane by reaction in-situ; and the basic needed materials of the cell are obtained by sintering the mixing powder at high temperature. The electrolysis membrane is produced on a cell matrix by using the spin coating method, thus leading the electrolysis membrane to have compact structure and no cracking. The method shows that after being tested by the electrochemistry: and the maximum power density includes respectively 50mW / cm<2>, 155mW / cm<2> and 200mW / cm<2> at the temperature of 600DEG C, 700 DEG C, and 800 DEG C.

Description

technical field [0001] The present invention relates to a kind of method of solid oxide fuel cell, more particularly, refer to a kind of adopt spin-coating method to prepare SrCeO 3 Proton Conducting Membrane Fuel Cell Approach. Background technique [0002] As a new generation of high-efficiency and clean energy, solid oxide fuel cells have high current density and power density; the polarization of the anode and cathode is small, and the polarization loss is concentrated in the internal resistance drop of the electrolyte; it avoids the acid-base of medium and low temperature fuel cells Corrosion and sealing problems of electrolyte or molten salt electrolyte; can provide high-quality waste heat, realize cogeneration of heat and power, high fuel utilization rate, energy utilization rate is as high as about 80%, it is a clean and efficient energy system; ceramic materials are widely used as Electrolytes, cathodes and anodes have an all-solid structure and have received more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/10H01M8/1069
CPCY02E60/522Y02E60/50
Inventor 谷景华丁昕祯张跃
Owner BEIHANG UNIV
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