Electrical conduction and corrosion processes in fast ion conducting glasses. Final report.

摘要

Fast ion conductors (FIC) are of growing interest as components of advanced electrochemical energy conversion devices. Amorphous FICs, known to exhibit a number of attractive characteristics, including ease of fabrication and lack of grain boundaries, await extensive commercial application due to their often poor electrochemical stability. Our laboratory has focused, in the past, on glasses in the system Li(sub 2)O-LiCl-B(sub 2)O(sub 3) as well as Na and K analogs. Lithium chloride was found to markedly enhance the Li ion conductivity but also to degrade the chemical stability of glasses in contact with molten lithium. Based on thermodynamic considerations, CaO additives are expected to improve the durability of such glasses. 48 refs, 18 figs., 1 tab.