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MEMS Seminar: Understanding and Enhancing Li-Ion Transport in Solids and at Interfaces for All-Solid-State Electrochemical Energy Storage
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Wednesday, March 31, 2021 - 12:00pm to 1:00pm
Professor Linda Faye Nazar, FRS,FRSC,OC
Professor Linda Faye Nazar presents "Understanding and Enhancing Li-Ion Transport in Solids and at Interfaces for All-Solid-State Electrochemical Energy Storage". Location: https://duke.zoom.us/j/9088262425 The seminar will cover an overview of the state-of-the art in the field, followed by a focus on recent findings in our laboratory based on neutron scattering that are complemented by analysis using the maximum entropy method, ab initio molecular dynamics simulations and solid-state NMR studies. We correlate structure with ionic conductivity in a range of newly developed fast ion Li conductors to understand how cation disorder and a frustrated energy landscape impacts conductivity and activation energy. These considerations lead to an overarching understanding for design concepts for ion transport and electrolyte-electrode interfaces in solid state batteries, which serves as the theme of the presentation. Translation of our findings to high performance practical solid-state batteries whose high performance exceeds that of their liquid electrolyte counterparts will be introduced at the end.