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High-performance reversible solid oxide battery electrode material composition and preparation method thereof

A solid oxide, battery electrode technology, used in battery electrodes, fuel cells, circuits, etc., to achieve high performance, high output power, and battery performance optimization

Active Publication Date: 2021-02-09
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these systems have basically solved the problems of continuous operation and low pollution, there are still some difficulties that need to be solved urgently. High performance, high stability and low cost are still the main focus of current SOC research and development

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  • High-performance reversible solid oxide battery electrode material composition and preparation method thereof
  • High-performance reversible solid oxide battery electrode material composition and preparation method thereof
  • High-performance reversible solid oxide battery electrode material composition and preparation method thereof

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preparation example Construction

[0043] The invention relates to a high-performance solid oxide reversible battery electrode material composition and a preparation method thereof, belonging to the technical field of reversible solid oxide batteries. A composite porous hydrogen electrode composed of nickel oxide and yttria-stabilized zirconia (YSZ) was prepared by phase inversion casting method. This hydrogen electrode was composed of 60% NiO and 40% YSZ by mass fraction. Highly reactive towards hydrogen and resistant to CO 2 Poisoned PrBaMn 2 o 5+δ , in the oxygen ion conductor electrolyte YSZ and SrSc 0.175 Nb 0.025 co 0.8 o 3-δ When the oxygen electrode is used, the corresponding single cell can obtain 3.0 W cm in solid oxide fuel cell mode at 750 °C -2 Maximum output power; electrolysis of CO in solid oxide electrolysis cell mode 2 , can get -2.09 A cm at 1.3V -2 The maximum current density and remain stable in the long-term test. The invention develops a high-performance preparation method for a ...

Embodiment 1

[0046] This embodiment provides a method for preparing a hydrogen electrode for a high-performance reversible solid oxide battery that introduces a PBM nanoparticle-modified tape through an impregnation method. The specific steps are as follows:

[0047] Fabrication of porous NiO-YSZ hydrogen electrode casting sheets by phase transition casting method;

[0048] Weigh 4.3501g of Pr(NO 3 ) 3 •6H 2 O, 2.6134g of Ba(NO 3 ) 2 and 4.4214g of Mn(CH 3 OO) 2 • 4H 2 O was placed in a clean beaker, and 100 mL of deionized water was added and stirred and dissolved on an electric stirring table to obtain a clear solution;

[0049] Weigh 3.0028g of glycine complexing agent and add to the dissolved metal ion solution, so that the molar ratio of glycine to metal ion is 1:1. Then the solution was transferred to a 100 mL volumetric flask for constant volume, so that the obtained 0.1 mol L -1 dipping solution;

[0050] The PBM solution was impregnated into the non-reduced porous NiO-YS...

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Abstract

The invention relates to a high-performance solid oxide reversible battery electrode material composition and a preparation method thereof. A nickel oxide and yttria-stabilized zirconia (YSZ) porous composite hydrogen electrode is prepared by a phase-transition tape casting method, and the hydrogen electrode is composed of NiO with the mass fraction of 60% and YSZ with the mass fraction of 40%; byimpregnating PrBaMn2O5+delta which is highly active to hydrogen and resistant to CO2 poisoning in the hydrogen electrode, when an oxygen ion conductor electrolyte YSZ and a SrSc0.175Nb0.025 Co0.8O3-delta are used as oxygen electrodes, and a corresponding single cell is at 750 DEG C, in the solid oxide fuel cell mode, the cell can obtain the maximum output power of 3.0 W cm<-2>; and CO2 is electrolyzed in a solid oxide electrolytic cell mode, the maximum current density of -2.09 A cm<-2> can be obtained at 1.3 V, and stability is kept in a long-time test.

Description

technical field [0001] The invention relates to a high-performance reversible solid oxide battery hydrogen electrode material composition and a preparation method thereof, belonging to the technical field of solid oxide reversible batteries. Background technique [0002] In recent years, the global consumption of fossil fuels has been increasing, and the carbon dioxide content in the air has risen sharply, leading to serious climate change and environmental damage. At the same time, the reduction of fossil fuel reserves has also exacerbated the energy crisis. Therefore, exploring and developing new It is an inevitable trend to provide renewable and clean energy while reducing carbon dioxide emissions. Although carbon dioxide is a greenhouse gas, it is also an important raw material for many industrial processes. Therefore, reducing CO2 emissions and converting them into useful products is an extremely attractive solution. New clean energy sources such as solar energy, wi...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/90H01M4/88H01M8/1253H01M8/126
CPCH01M4/8605H01M4/9033H01M4/88H01M4/8878H01M4/8885H01M2008/1293Y02P20/133
Inventor 杨广明肖祝如滕中阳周嵬邵宗平
Owner NANJING UNIV OF TECH
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