Glass-ceramic joining material for sodium-based battery. Issue 11 (1st August 2017)

• Record Type: Journal Article
• Authors: Smeacetto, F.; Radaelli, M.; Salvo, M.; Di Modugno, D.; Sabato, A.G.; Casalegno, V.; Broglia, M.; Ferraris, M.
• Is Part Of: Ceramics international. Volume 43:Issue 11(2017)
• Page Start: 8329
• Page End: 8333
• Publication Date: 2017-08-01
• Subjects: Joining -- Glass ceramics -- Batteries -- Glass -- Thermal properties -- Al2O3; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2017.03.170
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: This study focuses on the design, characterization and testing of a new glass-ceramic sealant for Na-based batteries. The thermo-mechanical properties as well as the sintering behaviour of the new sealant have been characterized by thermal analyses and x-rays diffraction studies. The exothermic peak in the differential thermal analysis plots has been assigned to the crystallization of a calcium sodium aluminum silicate (anorthite sodian), as confirmed by the X-ray diffraction data. The activation energy for the crystallization was found to be 482.3 kJ/mol. The compatibility at the interface between the glass-ceramic sealant and beta- and alpha-alumina is examined before and after corrosion test with molten Na. Tests of this novel silica-based glass-ceramic sealant with Na at 300 °C for 250 h in a real battery operating conditions showed no reactions with Na or evidence of corrosion, as demonstrated by SEM post mortem examinations after cell disassembly.