INSERT MATERIAL FOR THERMAL COMPRESSION BONDING OF SODIUM SULFUR BATTERY

摘要

The present invention provides an insert material for thermal compression bonding of a sodium-sulfur battery. According to the present invention, the insert material for thermal compression bonding of the sodium-sulfur battery which is inserted into a bonding site during a thermal compression bonding process of an insulation ring bonded to an opened end of a solid electrolyte pipe, a positive electrode bonding material, and a negative electrode bonding material comprises: an internal ring inserted inside the bonding site; and at least one external ring located on the outside of the internal ring with a predetermined interval.