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Method for producing a layer system comprising a metallic carrier and an anode functional layer

一种金属载体、功能层的技术，应用在制造层系领域，能够解决燃料电池不充分电化学特性数据等问题

Inactive Publication Date: 2010-04-14
FORSCHUNGSZENTRUM JULICH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem when applying thermal spraying processes for the production of individual fuel cell components is that a carrier in the form of a substrate must be used for the coating
This disadvantageously leads to insufficient electrochemical characterization data of the fuel cell

Method used

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  • Method for producing a layer system comprising a metallic carrier and an anode functional layer
  • Method for producing a layer system comprising a metallic carrier and an anode functional layer
  • Method for producing a layer system comprising a metallic carrier and an anode functional layer

Examples

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Embodiment Construction

[0025] Cr5FeY alloys were deposited on steel substrates composed of ST37 coated with polymers by atmospheric plasma spraying using an F4 torch. Polyester is used as an organic add-on component in sputtering. Applying cold process parameters (power about 40 kW, spray spacing 120 mm) in combination with polyester introduction, the adjustment of the porosity after burning the polyester allowed significantly more than 30%. The layer thickness is about 1 mm.

[0026] A finely porous layer (porosity > 25%) consisting of 55% NiO / 45% YSZ was deposited on this layer by atmospheric suspension plasma spraying. The solids content of the suspension was at 25% by weight. When the power of the F4 torch is 47kW, the spraying distance is 70mm.

[0027] Electrolyte deposition takes place by means of atmospheric plasma spraying using fine-grained, molten, crushed YSZ powder. Here, the substrate temperature is about 350°C. The blowtorch power is 50kW, and the spraying distance is 80mm. The ...

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Abstract

The aim of the invention is to produce complete high temperature fuel cells by means of thermal injection processes (e.g. atmospheric plasma injection, vacuum plasma injection, high speed flame injection). The production method is especially simplified and is economical by virtue of the fact that the carrier substrate is also produced on a base with the aid of a thermal injection method. The baseor an intermediate layer placed thereon can be advantageously dissolved or decomposed such that the carrier substrate provided with layers arranged thereon can be separated in a very simple manner fromthe base which becomes unnecessary. Said method advantageously enables the production of all layers of a high temperature fuel cell, exclusively with the aid of a thermal injection method.

Description

technical field [0001] The invention relates to a method for producing a layer system, in particular for producing a layer system comprising at least one metal carrier and an anode functional layer. Such layer systems are always employed in high temperature fuel cells. Background technique [0002] Various methods have proven suitable for producing individual components for high-temperature fuel cells. Among them, atmospheric plasma spraying, vacuum plasma spraying, and high-velocity flame spraying belong to these methods. Plasma spraying is a modern technique in order to equip, in particular, the surface of a component with a layer having special properties. A relatively wide variety of materials can be used as carrier (substrate) for the layers. In the production of layers, powdery particles are melted in the hot plasma jet, accelerated and thus deposited onto the substrate surface. The particles solidify there and remain cohesive. Layers of greater thickness can also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/02C23C4/18H01M8/12C23C4/06C23C4/10C23C4/11H01M4/88
CPCH01M8/1213H01M8/1253C23C4/185Y02E60/521H01M8/1226Y02E60/525C23C4/02H01M4/8885H01M4/9033H01M2008/1293Y02E60/50Y02P70/50
Inventor R·瓦森D·哈蒂拉马尼H·P·布赫克雷默F·蒂茨J·E·德林R·西格尔特F·特雷格尔D·施特弗
Owner FORSCHUNGSZENTRUM JULICH GMBH