a kind of ceo 2 Doped cu/mn composite film/microcrystalline interface layer and metal matrix composite connector and preparation method thereof

Abstract

The invention discloses a CeO2-doped Cu / Mn composite film / microcrystalline interface layer and a metal-based composite connector and a preparation method thereof, and relates to the field of metal connector composite materials for solid oxide fuel cells. Firstly, it is deposited by high-energy micro-arc alloy technology The microcrystalline transition layer of the matrix material; and then use the electrochemical deposition method to composite metal-plated Cu combined with nano-scale CeO 2 Composite film of particles; then electrochemically deposited metal Mn as the outer layer of the whole composite. Among them, a certain amount of nano-scale CeO added during electrodeposition of Cu coating 2 To refine the coating grains, improve the high-temperature diffusion of elements and the high-temperature oxidation resistance of the composite layer. The beneficial effects are: the prepared microcrystalline interface layer and the metal-based composite connector have strong electrical conductivity and excellent high-temperature oxidation resistance, and can effectively prevent the out-diffusion of Cr elements in the metal substrate to improve the performance of solid oxide fuel cells. The life and working efficiency of metal connectors.

Description

technical field

[0001] The present invention relates to a solid oxide fuel cell metal connector composite material, in particular to a method for preparing a CeO2-doped Cu / Mn composite film / microcrystalline interface layer and a metal-based composite connector, which is applied to a solid oxide fuel batteries or other high temperature batteries. Background technique

[0002] Solid Oxide Fuel Cell (SOFC) has the advantages of wide fuel adaptability, high energy conversion efficiency, all solid state, modular assembly, zero pollution, etc., and can directly use hydrogen, carbon monoxide, natural gas, liquefied petroleum gas, and coal gas and biomass gas and other hydrocarbon fuels. Solid oxide fuel cells have a wide range of applications, covering almost all traditional power markets, including residential, commercial, industrial, and public utility power plants, and even portable power sources, mobile power sources, and remote areas. High-quality power supply, etc., can als...

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