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Meeting MS&T23: Materials Science & Technology
Symposium ACerS Richard M. Fulrath Award Session
Presentation Title Defect-Informed Design and Discovery of Solid-State Ionics for Energy Applications
Author(s) Nicola H. Perry
On-Site Speaker (Planned) Nicola H. Perry
Abstract Scope Point defect-mediated properties in ceramics, particularly ionic conductivity, catalytic activity, and chemical expansivity, govern performance of solid-state electrochemical energy devices. This talk will describe both in-depth systematic studies on model structures and high-throughput screening methods to identify design principles and compositions that can extend the lifetime or efficiency of electrolyzers, fuel cells, and all-solid-state batteries. In one example, we have developed near-zero-chemical-strain electrodes and membranes for enhanced durability by tailoring crystal symmetry and the location of redox (anion vs. cation). In a second example, we have dramatically increased the catalytic activity of fuel cell/electrolyzer electrodes for oxygen surface exchange by orders of magnitude through a new in-situ crystallization route that produces a beneficial defect chemistry for charge transfer and preserves a pristine surface chemistry. Lastly, for Li-ion batteries, we have developed a defect-focused descriptor screening recipe to identify air-stable superionic solid electrolytes with intrinsic Li sublattice disorder and compatibility with high/low voltage electrodes. Advanced processing and high-throughput characterization methods for solid-state ionic materials developed in the course of the work will be highlighted.


Advanced Materials for Aerospace Propulsion and Power Systems
Defect-Informed Design and Discovery of Solid-State Ionics for Energy Applications
Dielectric Material for High Temperature Multilayer Ceramic Capacitors and Insulating Resistance Degradation Mechanism
Next Generation Energy Storage Materials for Carbon Neutral Society
Understanding Microscopic Origin of Physical Properties in Functional Ceramics

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