Anode Support Surface Treatment for Solid Oxide Fuel Cell
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Solution Overview
Problem
The interfacial properties between the anode support and electrolyte in solid oxide fuel cells need improvement to enhance the hydrogen oxidation reaction area and prevent delamination, thereby increasing fuel cell performance and durability.
Innovation Solution
A method involving surface treatment of the anode support with an acidic solution containing metal and inorganic oxide with oxygen ion conductivity, followed by applying an inorganic oxide to form an electrolyte, creating a porous structure that enhances the interface and increases the surface area for reaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the anode support interface with electrolyte is improved to increase hydrogen oxidation reaction area, then fuel cell performance is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The anode support surface is pre-treated with acidic solution before electrolyte application to create a porous structure. This preliminary action modifies the surface properties to enhance subsequent electrolyte adhesion and increase the hydrogen oxidation reaction area, thereby improving fuel cell performance without requiring complex post-processing steps
Solution Approach 2:
The anode support surface is treated to form a porous structure that increases the surface area for hydrogen oxidation reactions. The porous morphology is created through acidic treatment which etches the surface, creating numerous pores that enhance the interfacial contact area between the anode support and electrolyte, thus improving fuel cell performance
2Duration of action of stationary object
If surface treatment is applied to prevent delamination, then durability is improved, but manufacturing time and process complexity increase
Solution Approach 1:
Acidic surface treatment is performed on the anode support before electrolyte deposition to create a porous structure that enhances adhesion. This preliminary surface modification prevents delamination between the anode support and electrolyte during fuel cell operation, thereby improving durability without requiring additional protective layers or complex assembly procedures
Solution Approach 2:
The surface properties of the anode support are modified by changing its chemical and physical parameters through acidic treatment. This treatment alters the surface energy, porosity, and roughness parameters to optimize adhesion with the electrolyte, preventing delamination and enhancing fuel cell durability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach improves the interfacial properties, prevents delamination, and significantly increases the fuel cell's efficiency and durability by increasing the surface area for hydrogen oxidation and reducing the area specific resistance.
Implementation Method 1
contacting an acidic solution with at least one surface of the anode support including a metal and an inorganic oxide having oxygen ion conductivity to treat the surface
Implementation Method 2
an inorganic oxide having oxygen ion conductivity
Implementation Method 3
electric conductivity of an anode is high
Data Source
AI summary
The present application relates to a method of manufacturing an anode support of a solid oxide fuel cell and an anode support of a solid oxide fuel cell, and may improve performance and durability of the fuel cell by improving an interfacial property between the anode support and an electrolyte.