BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250811T183111EDT-4200UA7VJI@132.216.98.100 DTSTAMP:20250811T223111Z DESCRIPTION:Abstract:\n\nAll-solid-state sodium batteries use earth-abundan t elements\, non-volatile and non-flammable electrolytes\, and are conside red a safe and sustainable choice to satisfy the growing demand for energy storage. Using solid-state electrolytes (SEs) also eliminates the need fo r packing when fabricating tandem cells\, potentially enabling further enh anced energy density. Developing sodium-ion conductors that exhibit high e lectrochemical stability is an essential step toward long-lasting and high -performance solid-state batteries. As potential electrolyte materials for all-solid-state sodium batteries\, sodium thioantimonate and its substitu ted analogs exhibit high Na+ conductivity. To date\, a couple of key chall enges still exist for developing (electro-) chemically stable thioantimona te-based SEs. These challenges include batch-to-batch variations for produ cing substituted SEs\, and unwanted electrochemical decompositions occurri ng at the SE/electrode interface.\n\n \n\nThis seminar will discuss in-dep th\, multidisciplinary characterizations that can correlate the structure of thioantimonate SEs with their evolving electrochemical performances dur ing the battery cycling process. In particular\, X-ray absorption\, Raman\ , NMR\, X-ray diffraction\, and electron imaging characterizations are com bined to provide structural- and morphological-level understanding within the SE materials and the SE/electrode interfaces. These characterizations provide insights into the optimal synthetic approach of these SE materials . The interpretation of the SE/electrode interfacial chemistry made possib le by the in-situ analysis marks the criterion of an ideal functional prot ective layer towards high-performance\, long-lasting all-solid sodium batt eries.\n\n \n\nBio:\n\nLingzi obtained her B.S. from Xiamen University and her Ph.D. in Chemistry from the University of Arizona. Prior to joining t he Department of Chemistry at the University of Alberta\, Lingzi conducted her postdoc research at the University of Illinois at Urbana-Champaign. T he Sang group is broadly interested in fundamental chemical processes at t he interface of energy devices\, e.g. batteries and solar cells. Perturbat ions such as temperature\, radiation\, and electrical potential during cha racterization allow the team to correlate materials structure with device functionality. Sang group develop arrange of in-situ measurement tools (in -situ Raman\, XANES\, tomography) to answer materials chemistry questions. Standing at the interception of analytical\, materials\, and interfacial chemistry\, Sang recently established the Laboratory for Advanced Characte rization of Interfaces in Energy Devices (LACIE)\, a facility with the cap acity to comprehensively characterize the fundamental physicochemical natu re of interfaces in electrochemical devices. LACIE brings together researc h tools including vibrational spectroscopy (Raman\, IR)\, X-ray spectrosco py\, electrochemistry\, thin film fabrication\, and solid-state battery fa brication.\n DTSTART:20231128T180000Z DTEND:20231128T193000Z LOCATION:OM 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\, 801 rue Sherbrooke Ouest SUMMARY:Chemical Society Seminar: Lingzi Sang - Thioantimonate Electrolytes for All-solid-state Sodium Batteries – the Evolving Structure\, Interface \, and Electrochemical Performance URL:/chemistry/channels/event/chemical-society-seminar -lingzi-sang-thioantimonate-electrolytes-all-solid-state-sodium-batteries- 349254 END:VEVENT END:VCALENDAR