Solid oxide fuel cell and preparation method thereof

A solid oxide and fuel cell technology, applied in the direction of solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve problems such as not taking into account the cathode part

Active Publication Date: 2015-07-15
上海氢洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two patents are the sintering process of the anode side and the electrolyte of the solid oxide fuel cell, and both do not take into account the cathode part. In the process of preparing a complete solid oxide fuel cell, the above processes need to be adjusted

Method used

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  • Solid oxide fuel cell and preparation method thereof
  • Solid oxide fuel cell and preparation method thereof
  • Solid oxide fuel cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] (1) Mix 80 grams of homemade La 0.2 Sr 0.7 TiO 3 Add the powder and 20 grams of starch into the ball mill tank, then add 110 grams of butanone and ethanol mixed solvent and 3 grams of triethyl phosphate in a weight ratio of 3:2, and use a planetary ball mill at a speed of 300 rpm for 8 hours to mix. 15 grams of polyvinyl butyral, 6 grams of dibutyl phthalate and 6 grams of polyethylene glycol 200 were added to the slurry mixed by ball milling, and ball milled for 16 minutes with a planetary ball mill at a speed of 300 rpm. hours to mix. The above-mentioned final ball-milled slurry was subjected to vacuum degassing treatment for 30 minutes, and cast on a tape casting machine to make perovskite La 0.2 Sr 0.7 TiO 3 The green body of the anode support body, the thickness of the green body of the anode support body after drying is 1000 μm.

[0066](2) ethyl cellulose is dissolved in terpineol, and the ethyl cellulose terpineol mixed solution that ethyl cellulose conten...

Embodiment 2

[0078] (1) Add 70 grams of La 0.2 Sr 0.7 TiO 3 Add the powder and 30 grams of starch into the ball mill tank, then add 110 grams of butanone and ethanol mixed solvent and 3 grams of triethyl phosphate in a mass ratio of 3:2, and use a planetary ball mill at a speed of 300 rpm for 8 hours to mix. 18 grams of polyvinyl butyral, 6 grams of dibutyl phthalate and 6 grams of polyethylene glycol 200 were added to the slurry mixed by ball milling, and ball milled for 16 minutes with a planetary ball mill at a speed of 300 rpm. hours to mix. The above-mentioned final ball-milled slurry was subjected to vacuum degassing treatment for 30 minutes, and cast on a tape casting machine to make perovskite La 0.2 Sr 0.7 TiO 3 The green body of the anode support body, the thickness of the green body of the anode support body after drying is 1000 μm.

[0079] (2) According to the step (2) of Example 1, the ethyl cellulose terpineol solution was prepared, the anode functional layer and the e...

Embodiment 3

[0087] (1) carry out perovskite La according to embodiment 1 0.2 Sr 0.7 TiO 3 Preparation of anode support green body and ethylcellulose terpineol solution.

[0088] (2) 1 gram of homemade 10Sc1CeSZ and 1.5 grams of La 0.2 Sr 0.7 TiO 3 The mixed powder was added to 9 milliliters of 2wt% ethylcellulose terpineol solution, ground for 1 hour to obtain a stable and uniform slurry, and the prepared mixed slurry was evenly deposited on the raw material of the anode support on a screen printing machine. The first layer of anode functional layer is formed on the blank. Add the mixed powder of 1 gram of 10Sc1CeSZ and 1.5 gram of NiO to 9 milliliters of 2wt% ethylcellulose terpineol solution, grind for 1 hour to obtain a stable and uniform slurry, and prepare the mixed slurry on a screen printing machine uniformly deposited on the anode support body green body to form the second anode functional layer. Add 4 grams of 10Sc1CeSZ powder to 6 ml of 3wt% ethylcellulose terpineol solut...

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Abstract

The invention relates to a solid oxide fuel cell and a preparation method thereof. The cell is formed by sequentially depositing a porous anode functional layer, a dense electrolyte layer and a porous cathode functional layer on a porous anode supporting body with perovskite type oxide serving as an anode material, a porous cathode layer is deposited on the reduced porous cathode functional layer, nanometer-doped cerium oxide is deposited in the porous perovskite anode supporting body and the porous anode functional layer, and nanometer-doped cerium oxide and a nanometer cathode material are sequentially deposited in the porous cathode functional layer. The prepared solid oxide fuel cell is stable in structure for a long time and can endure oxidization-reduction circulation multiple times, carbon deposition is resisted, and the sulfur-resistant performance is achieved.

Description

technical field [0001] The invention relates to the technical field of solid oxide fuel cells, in particular to a solid oxide fuel cell and a preparation method thereof. Background technique [0002] Solid Oxide Fuel Cell (Solid Oxide Fuel Cell, abbreviated as SOFC) is an all-solid-state power generation device that directly converts chemical energy in fuel into electrical energy through electrochemical reactions. It is a new type of efficient and clean energy conversion device. SOFC has many advantages, such as: no need to use noble metals as electrodes; wide applicability of fuel, that is, hydrogen, carbon monoxide and hydrocarbons can be used as fuel; high energy conversion efficiency; fast electrode reaction; only gas-solid two The phase system eliminates the corrosion problem caused by the liquid electrolyte; the high-quality exhaust gas discharged can be combined with the gas turbine or combined heat and power. SOFC has a wide range of applications, and its main appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/12
CPCH01M4/8605H01M4/8835H01M4/8857H01M4/9033H01M8/124H01M8/1253Y02E60/50
Inventor 李斯琳
Owner 上海氢洋科技有限公司
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