EVENT DETAILS
The Chemical and Biological Engineering Department is pleased to present a seminar by Lynden Archer from Cornell University as part of our ChBE Seminar Series.
Dr. Lynden Archer will present a seminar titled "Multi-scale structure and reversibility of electrodeposition at battery anodes."
ABSTRACT: The presentation considers morphological evolution of metal electrodeposits and their impact on reversibility of electro-crystallization/dissolution processes in liquids and porous-media electrolytes. The aim is resolve long-standing but fundamentally misunderstood physico-chemical processes that favor out-of-plane growth of metal electrodeposits at battery anodes. Such growth produces non-uniform, low-density metal deposit morphologies with underlying crystal structures different from those observed in their bulk analogs. Beginning with results from studies performed over the last decade, the presentation will firstly explore how and under what conditions planar, reversible nucleation and growth of crystalline metal structures can be achieved inside a closed electrochemical cell. Interfacial products created by spontaneous, parasitic reactions will also be discussed with the aim of understanding the competitive electroreduction reaction kinetics responsible for their growth, as well as for motivating the role the new material phases (i.e., interphases) formed by these reactions play in regulating electrodeposit morphology. Finally, the presentation will consider general stability limits for metal electrodeposition processes in liquid and structured electrolyte media from multiple perspectives and on that basis explore promising electrolyte and electrode design concepts that enable novel slow and fast-charging batteries.
Lynden Archer is the Joseph Silbert Dean of the College of Engineering and the James A Friend Family Distinguished Professor of Chemical and Biomolecular Engineering. His research focuses on transport properties of polymers and polymer-nanoparticle hybrid materials, and their applications for electrochemical energy storage in batteries. Archer received his Ph.D. in chemical engineering from Stanford University and was a Postdoctoral Member of the Technical Staff at AT&T Bell Laboratories. He is a member of the National Academy of Engineering (NAE) and fellow of the American Physical Society (APS) and Society of Rheology (SOR). His research contributions have been recognized with various awards, including the AICHE Nanoscale Science and Engineering Forum award, the National Science Foundation award for Special Creativity, NSF Distinguished Lectureship in Mathematical & Physical Sciences, the American Institute of Chemical Engineer's MAC Centeniell Engineer award, and the Thompson-Reuters World's Most Influential Scientific Minds in Materials Science. At Cornell, he has been recognized with the James & Mary Tien Excellence in Teaching Award and thrice with the Merrill Presidential award as the most influential member of the Cornell faculty selected by a Merrill Presidential Scholar awardee. He served as Deputy Editor of the AAAS journal Science Advances from 2017-2021.
Bagels and coffee will be provided at 9:30am, and the seminar will start at 9:40am. Please plan to arrive on time to grab a bagel and mingle!
*Please note that there will be no Zoom option for seminars this year.
TIME Thursday November 14, 2024 at 9:30 AM - 11:00 AM
LOCATION LR4, Technological Institute map it
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CONTACT Olivia Wise olivia.wise@northwestern.edu
CALENDAR McCormick-Chemical and Biological Engineering (ChBE)