Solid oxide fuel cell electrolyte film preparation method

An electrolyte film and solid oxide technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of high electrolyte electronic conductivity, high electrolyte internal resistance, leakage and other problems

Inactive Publication Date: 2021-09-10
北京思伟特新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing an electrolyte film of a solid oxide fuel cell, which can solve the problem that the internal resistance of the electrolyte prepared by the above method is too high, CeO 2 Electrolyte electronic conductivity is high, there will be technical problems of leakage

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Embodiment 1

[0083] S101. Provide an anode substrate, the anode substrate includes a metal support and a fuel electrode layer on the metal support, wherein the metal support has a porous region, and a protective coating arranged along the outer surface of the metal support and the porous inner wall of the porous region , the fuel electrode layer covers the porous area.

[0084] S102. Use magnetron sputtering to sputter the barrier layer on the anode substrate. The substrate of the YSZ barrier layer can be YSZ. YSZ uses Y / Zr alloy as the target material, adopts the direct current (DC) sputtering mode, and controls the sputtering power DC as 100W, gas selection O 2 Mixed gas with Ar, O 2 The gas ratio to Ar is 1 / 2, the gas flow rate is 10sccm, the chamber pressure is 8Pa, the bias voltage is -10V, the substrate temperature is 300°C, the substrate rotation speed is 15pm, the distance between the substrate and the target is 2cm, and the sputtering time is 40min. The thickness of the barrier ...

Embodiment 2

[0087] S101. Provide an anode substrate, the anode substrate includes a metal support and a fuel electrode layer on the metal support, wherein the metal support has a porous region, and a protective coating arranged along the outer surface of the metal support and the porous inner wall of the porous region , the fuel electrode layer covers the porous area.

[0088] S102. Use magnetron sputtering to sputter the barrier layer on the anode substrate. The substrate of the YSZ barrier layer can be SSZ. SSZ uses Sc / Zr alloy as the target material, adopts the direct current (DC) sputtering mode, and controls the sputtering power DC as 100W, gas selection O 2 Mixed gas with Ar, O 2 The gas ratio to Ar is 1 / 2, the gas flow rate is 10sccm, the chamber pressure is 8Pa, the bias voltage is -100V, the substrate temperature is 400°C, the substrate rotation speed is 15pm, the distance between the substrate and the target is 2cm, and the sputtering time is 20min. The thickness of the barrie...

Embodiment 3

[0091] S101. Provide an anode substrate, the anode substrate includes a metal support and a fuel electrode layer on the metal support, wherein the metal support has a porous region, and a protective coating arranged along the outer surface of the metal support and the porous inner wall of the porous region , the fuel electrode layer covers the porous area.

[0092] S102. Use magnetron sputtering to sputter the barrier layer on the anode substrate. The barrier layer substrate can be YSZ. YSZ uses YSZ ceramic material as the target material, adopts radio frequency (RF) sputtering mode, and controls the sputtering power RF to 100W. Gas selection O 2 Mixed gas with Ar, O 2 The gas ratio to Ar is 1 / 20, the gas flow rate is 10sccm, the chamber pressure is 8Pa, the substrate temperature is room temperature, the substrate rotation speed is 15pm, the distance between the substrate and the target is 2cm, the sputtering time is 2h, and the thickness of the barrier layer is 500nm;

[00...

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Abstract

The invention provides a solid oxide fuel cell electrolyte film preparation method. The solid oxide fuel cell electrolyte film preparation method comprises the steps that an anode substrate is provided and comprises a metal support body and a fuel electrode layer located on the metal support body, a porous area and a protective coating are arranged on the metal support body, the protective coating is arranged along the outer surface of the metal support body and the porous inner wall of the porous area, and the fuel electrode layer covers the porous area; and an electrolyte film is sputtered on the anode substrate by adopting a magnetron sputtering method, specifically, a barrier layer and a main electrolyte layer are sequentially sputtered on the anode substrate, the barrier layer takes a Zr-based material or a Ce-based material as a substrate, the main electrolyte layer takes a Ce-based material or a Zr-based material as a substrate, and the total thickness of the electrolyte film is not greater than 20nm-40[mu]m. The double-electrolyte compact layer is prepared by adopting the magnetron sputtering method, so that the thickness of the electrolyte can be effectively reduced, and the internal resistance loss is reduced.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a method for preparing an electrolyte film of a solid oxide fuel cell. Background technique [0002] Solid oxide fuel cell is an energy conversion device that can efficiently convert the chemical energy in fuel gas (such as hydrogen, natural gas, coal gas, etc.) Low noise, it is an ideal distributed power station and centralized power station technology, and can also be applied to vehicle auxiliary power supply, portable power supply, etc. In order to reduce the manufacturing cost, improve the long-term stability and reliability of the battery, shorten the start-up time, and reduce the operating temperature of the solid oxide fuel cell, it has become the focus of research and development at home and abroad. [0003] Reducing the operating temperature of the battery can improve the contact performance between the electrode and the electrolyte by changing the thickn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/08H01M8/1253H01M8/126
CPCC23C14/35C23C14/083H01M8/126H01M8/1253Y02P70/50Y02E60/50
Inventor 刘亚迪胡浩然
Owner 北京思伟特新能源科技有限公司
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