A method for preparing a low electric loss solid oxide fuel cell

Abstract

The invention relates to a preparation method of a low-electric-loss solid oxide fuel cell, belonging to the technical field of new energy sources. Ferrous chloride and lithium carbonate powder are mixed in an organic solvent, During the precipitation and crystallization of ferrous and lithium ions, CuSO4 and AgNO3 are added, and the copper ion isomorphously substitutes for the iron ion, and the silver ion isomorphously substitutes for the lithium ion, and the substitute iron ion and lithium ion enter the organic phase, so that holes are generated on the original crystal lattice due to the isomorphous substitution, and the generation of holes is conducive to the movement of electrons, and the electric conduction effect of the fuel cell is enhanced; The battery electrode prepared by the invention has the advantages of isomorphous substitution of copper ion for iron ion and silver ion for nickel ion, and at the same time, the diffusion of metal ion is promoted by organic solvent, so thatthe ion movement is more simple, the temperature required for solid oxide fuel cell reaction is reduced, the conductivity is enhanced, and the battery electrode has wide application prospect.

Description

Technical field [0001] The invention relates to a method for preparing a solid oxide fuel cell with low power loss, and belongs to the technical field of new energy. Background technique [0002] The solid oxide fuel cell (SOFC for short) belongs to the third generation of fuel cell, which is an all-solid chemical power generation device that directly converts the chemical energy stored in fuel and oxidant into electrical energy at medium and high temperature. It is generally considered to be a fuel cell that will be widely used in the future like the proton exchange membrane fuel cell (PEMFC). [0003] The solid oxide fuel cell is a new type of power generation device. Its high efficiency, pollution-free, all-solid structure and wide adaptability to a variety of fuel gases are the basis for its wide application. The main components of the solid oxide fuel cell monomer are composed of electrolyte, anode or fuel electrode, cathode or air electrode, and connector or bipolar plate. ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a solid oxide fuel cell with low power loss in view of the defects that the electrical loss of the fuel cell is too high du