Method of preparing fused carbonate fuel battery cathode nickel plate using non water base curtain coating technology

A fuel cell cathode and molten carbonate technology, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of unreported electrocatalytic performance of electrodes, high production costs, and complicated equipment, and achieve excellent stability and electrochemical performance. Catalytic performance, low processing cost, and the effect of increasing output power density

Inactive Publication Date: 2004-12-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation equipment of this process material is relatively complicated, so the production cost is high, its application is limited, and there is no report on the electrocatalytic performance of this electrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one: 80 grams of mixed solvents of 100 grams of carbonyl nickel powder, 1 gram of mixed rare earth oxides and cyclohexanone / n-butanol, and 2 grams of triolein were ball milled for 2 hours, Then add 10 grams of polyethylene glycol and 10 grams of polyvinyl butyral and continue ball milling for 2 hours to obtain a stable and uniform casting slurry. The slurry was left to stand for 30 minutes under the condition that the vacuum degree was lower than 200 mbar, and then cast on a tape casting machine, and dried at room temperature to obtain a cast biscuit with a thickness of about 1-2 mm. Put the biscuit into the ammonia decomposition furnace for sintering at 850°C. From room temperature to 500°C, in the air environment, the heating rate is 1°C / min and kept at 500°C for 6 hours, then in 25% Vol.H 2 / 75%Vol.N 2 In a reducing atmosphere, the heating rate is controlled at 2° C. / min, heated to 850° C., and kept for 6 hours to obtain a porous nickel cathode sample. ...

Embodiment 2

[0017] Embodiment two: 80 grams of mixed solvents of 100 grams of carbonyl nickel powder, 0.3 grams of mixed rare earth oxides and cyclohexanone / n-butanol, and 2 grams of glyceryl trioleate were mixed for 2 hours by ball milling, Then add 10 grams of polyethylene glycol and 10 grams of polyvinyl butyral and continue ball milling for 2 hours to obtain a stable and uniform casting slurry. The slurry was left to stand for 30 minutes under the condition that the vacuum degree was lower than 200 mbar, and then cast on a tape casting machine, and dried at room temperature to obtain a cast biscuit with a thickness of about 1-2 mm. Put the biscuit into the ammonia decomposition furnace for sintering at 850°C. From room temperature to 500°C, in the air environment, the heating rate is 1°C / min and kept at 500°C for 6 hours, then in 25% Vol.H 2 / 75%Vol.N 2 In a reducing atmosphere, the heating rate is controlled at 2° C. / min, heated to 850° C., and kept for 6 hours to obtain a porous n...

Embodiment 3

[0018] Embodiment three: 80 grams of mixed solvents of 100 grams of carbonyl nickel powder, 0.6 grams of mixed rare earth oxides and cyclohexanone / n-butanol, and 2 grams of glyceryl trioleate were mixed for 2 hours by ball milling, Then add 10 grams of polyethylene glycol and 10 grams of polyvinyl butyral and continue ball milling for 2 hours to obtain a stable and uniform casting slurry. The slurry was left to stand for 30 minutes under the condition that the vacuum degree was lower than 200 mbar, then cast on a tape casting machine, and dried at room temperature to obtain a cast biscuit with a thickness of about 1-2 mm. Put the biscuit into the ammonia decomposition furnace for sintering at 850°C. From room temperature to 500°C, in the air environment, the heating rate is 1°C / min and kept at 500°C for 6 hours, then in 25% Vol.H 2 / 75%Vol.N 2 In a reducing atmosphere, the heating rate is controlled at 2° C. / min, heated to 850° C., and kept for 6 hours to obtain a porous nicke...

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PUM

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Abstract

The invention provides a method for manufacturing melted carbonate fuel battery negative nickel board with non-water-base flowing process which belongs to fuel battery field. The invention uses carbonyl nickel power material, uses compound rare earth oxide as impurity modifying material, the flow pulp solvent uses the compound solvent of cyclohexanone and n-butanol, manufactures the melted carbonate fuel battery nickel negative electrode biscuit with non-water-base flow process, the biscuit is baked in temperature and air condition, and acquires the multi-aperture negative electrode nickel board. The product has an excellent stability and electrochemical catalyst performance; the specific area of the nickel board is high, the aperture rate is between 60%-80%, the average aperture diameter is between 6-10micrometers; the process is simple, the cost is low.

Description

technical field [0001] The invention relates to a method for preparing a cathode nickel plate of a molten carbonate fuel cell, in particular to a method for preparing a cathode nickel plate for a molten carbonate fuel cell by a non-water-based casting process. It belongs to the field of fuel cells. Background technique [0002] Molten carbonate fuel cells use porous Ni / Al(Cr) as the anode, NiO as the cathode, Li 2 CO 3 / K 2 CO 3 or Li 2 CO 3 / Na 2 CO 3 The eutectic mixture for the electrolyte, LiAlO 2 For electrolyte plate material, work at 600-800□. MCFC is a kind of high-temperature fuel cell. It can directly pass natural gas and carbon monoxide into the anode of the battery to participate in the electrochemical reaction after catalytic reforming to generate electricity, so it is very suitable for large-scale and high-efficiency power stations. However, the dissolution of the NiO cathode in the molten carbonate fuel cell is the biggest obstacle restricting its co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88
CPCY02E60/50
Inventor 黄波胡克鳌陈刚赵斌元刘预
Owner SHANGHAI JIAO TONG UNIV
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