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Low-temperature solid oxide fuel cell based on barium stannate/zinc oxide composite material

A kind of solid oxide, composite material technology

Active Publication Date: 2019-05-10
NANJING XIAOZHUANG UNIV
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  • Summary
  • 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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  • Low-temperature solid oxide fuel cell based on barium stannate/zinc oxide composite material
  • Low-temperature solid oxide fuel cell based on barium stannate/zinc oxide composite material
  • Low-temperature solid oxide fuel cell based on barium stannate/zinc 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 coated with NCAL on the surface constitutes a symmetrical electrode, the fuel cell cathode and anode of the present invention all adopt the nickel foam coated with NCAL on the surface, and the core electrolyte layer is BSO and ZnO composite material, so the structure of the fuel cell is: foam Nickel / / NCAL / / BSO / ZnO / / NCAL / / Nickel Foam; Among them, NCAL is Ni 0.8 co 0.15 al 0.05 LiO 2-δ Materials (can be purchased or prepared by a disclosed method), BSO is commercially available or prepared by the method of the present invention, ZnO is commercially available; foamed nickel is a commercially purchased foamed nickel m...

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Abstract

The invention discloses a low-temperature solid oxide fuel cell based on a barium stannate / zinc oxide composite material. A cathode and an anode of the fuel cell are made of foamed nickel with the surface being coated with NCAL, and an electrolyte layer of the fuel cell is made of a BSO / ZnO composite material. The fuel cell structurally comprises foamed nickel / / NCAL / / BSO / ZnO / / NCAL / / foamed nickel.The low-temperature solid oxide fuel cell adopts the composite material of barium stannate which is of a perovskite structure and nano-zinc oxide as the electrolyte layer of the fuel cell, and the electrode polarization loss in the electrochemical reaction process of the fuel cell is greatly reduced; and in addition, the electrolyte material has good output power in the low-temperature stage, so that the solid oxide fuel cell adopting the electrolyte material can operate efficiently and steadily for a long term in the low-temperature stage (300-600 DEG C).

Description

technical field [0001] The invention relates to a low-temperature solid oxide fuel cell based on barium stannate / zinc oxide composite material, which belongs 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): H01M8/1246
CPCY02E60/50
Inventor 陆玉正颜森林
Owner NANJING XIAOZHUANG UNIV
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