Asymmetric composite anode of microtuble-type solid oxide fuel cell and preparation method of asymmetric composite anode

A solid oxide and fuel cell technology, applied to fuel cell parts, battery electrodes, circuits, etc., can solve problems such as easy delamination, long process route, and weak interlayer bonding, and achieve anti-carbon deposition And the effect of good sulfur resistance, small gas diffusion resistance and simple process
CN102903940BActive Publication Date: 2015-01-07TIANJIN POLYTECHNIC UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN POLYTECHNIC UNIV
Publication Date
2015-01-07

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Abstract

The invention belongs to the technical field of solid fuel batteries and particularly relates to an asymmetric composite anode of a microtuble-type solid oxide fuel cell and a preparation method of the asymmetric composite anode. The composite anode is provided with double anodes and is of a gradient hole structure; an anode microtuble inner layer is Cu-CeO2 based porous anode which plays a role in supporting and has the thickness of 0.2-0.6mm; and an anode microtube outer layer is a Ni-based porous anode which is of a micropore structure and has the thickness of 5-30 mu m. The composite anode is prepared by virtue of a phase inversion molding-sintering-soaking and reduction process; the prepared asymmetric composite anode has small gas diffusion resistance, has favorable anti-carbon and sulfur-tolerance performances, and is suitable for preparing a microtube-type solid oxide fuel cell which directly utilizes a hydrocarbon compound as a fuel; and the method has the advantages of being simple in technological process and easy to operate, having no need of expensive equipment, being low in cost and being suitable for large-scale production.
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Description

technical field

[0001] The invention belongs to the technical field of solid fuel cells, and in particular relates to an asymmetric composite anode of a microtube type solid oxide fuel cell and a preparation method thereof. Background technique

[0002] Solid Oxide Fuel Cell (SOFC) has high energy conversion efficiency (cogeneration efficiency of heat and electricity can reach more than 70%), wide source of fuel (hydrogen, natural gas, methanol, gasoline and other hydrocarbons can be used as fuel) and environmental protection Friendly (CO 2 Emissions can be reduced by 50%) and other advantages, has become a new energy technology developed by various countries. Microtubular solid oxide fuel cell is a tubular fuel cell with a diameter of less than 2 mm, which has the advantages of ordinary tubular and plate SOFCs, that is, large electrode area per unit volume, high cell volume power density, and short start-up and stabilization times. , easy to seal and connect at high tempe...

Claims

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