Oxide fuel cell based on lanthanum nickelate and lanthanum-doped yttrium oxide composite material

A composite material and fuel cell technology, used in fuel cells, circuits, electrolytes, etc., can solve problems such as short circuits, and achieve the effects of high oxygen ion conductivity, good output power, and enhanced transmission capacity

Inactive Publication Date: 2019-04-26
NANJING XIAOZHUANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If a semiconductor material is used as the electrolyte material of a fuel cell, it is easy to think of a short circuit phenomenon. Because of this, materials with semiconductor properties have not been used in fuel cells so far.

Method used

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  • Oxide fuel cell based on lanthanum nickelate and lanthanum-doped yttrium oxide composite material
  • Oxide fuel cell based on lanthanum nickelate and lanthanum-doped yttrium oxide composite material
  • Oxide fuel cell based on lanthanum nickelate and lanthanum-doped yttrium oxide composite material

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Embodiment Construction

[0028] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0029] Such as figure 1 As shown, the nickel foam that the surface is coated with NCAL constitutes a symmetrical electrode, the fuel cell cathode and anode of the present invention all adopt the nickel foam that the surface is coated with NCAL, and the core electrolyte layer is a composite material of SNO and NSDC, so the structure of the fuel cell is: foam Nickel / / NCAL / / SNO / NSDC / / NCAL / / Nickel Foam; Among them, NCAL is Ni 0.8 co 0.15 al 0.05 LiO 2-δ Material, NSDC is that the present invention utilizes the Ce prepared by sodium carbonate precipitation 0.8 SM 0.2 o 1.9 Material or the NSDC that adopts existing disclosed method to make; SNO is the SmNiO that the...

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Abstract

The invention discloses an oxide fuel cell based on a lanthanum nickelate and lanthanum-doped yttrium oxide composite material. A cathode and an anode of the fuel cell are made from foam nickel coatedwith NCAL on the surface, and an electrolyte layer of the fuel cell is a SNO/NSDC composite material, that is, the structure of the fuel cell is made from foam nickel//NCAL//SNO/NSDC//NCAL//foam nickel. The low-temperature solid oxide fuel cell uses the lanthanum-doped yttrium oxide (NSDC) composite material, prepared by utilizing a sodium carbonate precipitation process, of an ionic conductor asan electrolyte layer, and greatly reduces the electrode polarization loss during the electrochemical reaction of the fuel cell; in addition, the electrolyte material has good output power in the lowtemperature section, so that the solid oxide fuel cell using the electrolyte material can be efficiently and stably operate in a low temperature range (300-600 DEG C) for a long period of time. Stableoperation.

Description

technical field [0001] The invention relates to an oxide fuel cell based on samarium nickelate and samarium-doped cerium oxide composite materials, belonging to the technical field of new energy. Background technique [0002] Solid oxide fuel cells can efficiently convert chemical energy in fuel (such as hydrogen, methane, etc.) into electrical energy. The conversion efficiency is not limited by the Carnot cycle, and its efficiency is much higher than that of thermal power generating units. Fuel cells can be divided into proton exchange membrane fuel cells, solid oxide fuel cells, alkaline fuel cells, molten carbonate fuel cells, and phosphate fuel cells according to their electrolyte classification. Among them, solid oxide fuel does not require noble metal catalysts, materials The advantages of wide selection range and high conversion efficiency have attracted widespread attention. However, the current solid oxide fuel cells mainly use yttria-stabilized zirconia (YSZ) as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/126
CPCH01M8/126H01M2008/1293H01M2300/0074Y02E60/50
Inventor 陆玉正颜森林
Owner NANJING XIAOZHUANG UNIV
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