High-temperature sealing material for solid oxide fuel cell

Abstract

The invention provides a high-temperature sealing material for a solid oxide fuel cell. The high-temperature sealing material comprises the following raw materials in percentage by mass: 25-29 percent of calcium oxide, 20-24 percent of magnesium oxide, 2-4 percent of zinc oxide, 25-30 percent of silica, 11-16 percent of iron trioxide and 3-5 percent of boric oxide. Compared with the prior art, the high-temperature sealing material for the solid oxide fuel cell has good sealing performance.

Description

technical field [0001] The invention relates to a high-temperature sealing material for a solid oxide fuel cell with good sealing performance. Background technique [0002] With the continuous development of energy technology, the application of fuel cells is becoming more and more extensive. Solid oxide fuel cells operating at high temperatures usually use ceramic materials as electrolyte materials. Among them, the three-in-one structure composed of composite cathode and anode on both sides of the electrolyte material of the flat solid oxide fuel cell is combined with the battery unit and the connector material through the sealing material. Therefore, the sealing performance of the sealing material is more important for the performance of the solid oxide fuel cell, especially whether the open circuit voltage is stable after many cycles of work, has become an important indicator, and the existing high-temperature sealing of the solid oxide fuel cell The sealing performance...

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is that the sealing performance of the current high-temperature sealing materials for solid oxide fuel cells is insufficient