Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature structural material, structural body for solid electrolyte fuel cell, and solid electrolyte fuel cell

A solid electrolyte and structural material technology, applied in solid electrolyte fuel cells, fuel cell components, fuel cells, etc., can solve problems such as battery performance damage

Inactive Publication Date: 2013-01-16
MURATA MFG CO LTD
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, due to the MgO‐Al 2 o 3 Composite oxides have a high melting point, and the temperature at the time of sintering and bonding is above 1400°C. There is a problem that the performance of the battery is impaired due to the deterioration of the fuel electrode and the air electrode when exposed to high temperatures.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature structural material, structural body for solid electrolyte fuel cell, and solid electrolyte fuel cell
  • High-temperature structural material, structural body for solid electrolyte fuel cell, and solid electrolyte fuel cell
  • High-temperature structural material, structural body for solid electrolyte fuel cell, and solid electrolyte fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0077] Hereinafter, examples of the present invention will be described.

[0078] First, strontium titanate (SrTiO 3 ) and alumina (Al 2 o 3 ) composite oxides were used as high-temperature structural materials, and each sample was evaluated.

[0079] (Preparation of high temperature structural material samples)

[0080] Preparation of SrTiO as raw material 3 Powder and Al 2 o 3 powder. These raw materials were replaced by SrTiO 3 :Al 2 o 3 =1-x:x molar ratio for weighing. The value of X is shown in Table 1-Table 5. In the samples of Examples 1 to 5 and Comparative Examples 1 to 3 and 5 shown in Table 1, SrTiO3 Powder and Al 2 o 3 The powder is mixed with an organic solvent and a polyvinyl butyral binder to prepare a slurry. In the sample of Comparative Example 4 shown in Table 1, only SrTiO 3 The powder is mixed with an organic solvent and a polyvinyl butyral binder to prepare a slurry. In the samples of Examples 6 to 25 shown in Table 2 to Table 5, in SrTiO ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed is a high-temperature structural material capable of being sintered at relatively low temperatures just by the addition of a prescribed sintering agent such that the coefficient of thermal expansion is close to that of an electrolyte material, without lowering the mechanical strength even in a reducing atmosphere. Also disclosed is a structural body for a solid electrolyte fuel cell formed using that high temperature structural material and a solid electrolyte fuel cell provided with that structural body. The high-temperature structural material contains strontium titanate and aluminum and contains 10-60 parts by mole of aluminum when the strontium titanate is 100 parts by mole.

Description

technical field [0001] The invention relates to a high-temperature structural material, a structure for a solid electrolyte fuel cell formed using the high-temperature structural material, and a solid electrolyte fuel cell with the structure. Background technique [0002] Generally, a flat-plate solid electrolyte fuel cell (also referred to as a solid oxide fuel cell (SOFC)) is formed of a plurality of flat-shaped battery cells as power generation elements and separators arranged between the plurality of battery cells. The battery cells are respectively formed of an anode (negative electrode, fuel electrode), a solid electrolyte, and a cathode (positive electrode, air electrode). The spacer is arranged between a plurality of battery cells, so as to electrically connect the plurality of battery cells in series with each other, and separate the gas supplied to each battery cell, specifically, the fuel gas (such as hydrogen) supplied to the anode as an anode gas Separated from...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/47H01M8/02H01M8/12
CPCY02E60/521C04B35/47C04B2237/704C04B2235/3217H01M8/0215C04B2235/80C04B2235/3251C04B2235/3222C04B2235/6025C04B37/001C04B2235/77H01M8/0273H01M8/1213C04B2235/3263C04B2235/9607C04B2235/96C04B2237/346C04B2237/348C04B2235/3262Y02E60/525H01M8/2425Y02E60/50H01M8/2483H01M8/2432H01M8/0217H01M8/12
Inventor 高田和英
Owner MURATA MFG CO LTD