Studies on CXN natural zeolite - III. Preparation and characterization of novel LiCl/H-STI guest/host solid electrolyte

By calcination at 250 degreesC for 16 h, LiCl can be highly dispersed into the channels of H - STI prepared from natural CXN (STI type) zeolite discov ered in China to form a novel guest/host material. XRD, SEM, FT - IR and DT A analysis show that LiCl has been loaded and stabilized in the channels of H - STI. The threshold of LiCl loaded in H- STI is 0.14 g/g, which has bee n confirmed by AC - impedance measure ments. A sample of LiCl/H - STI with 0.14 g/g loading is found to possess the highest conductivity, which is fou r orders of magnitude higher than that of the host (H - STI). This fact ind icates that LiCl/H - STI is a promising solid electrolyte.