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Regulating electrodeposition of metals at small and large length scales Lynden A. Archer

School of Chemical & Biomolecular Engineering, Cornell University, Ithaca NY

Professor Lynden A. Archer

Event Details:

Friday, January 21, 2022
11:15am - 12:30pm PST

Location

Stanford University
United States

Location

Seminar is Virtual

This event is open to:

Alumni/Friends
Faculty/Staff
General Public
Students

Abstract:  The levelized cost of electric power generated from renewable resources have fallen continuouslym over the last decade. This trend is rightly fueling optimism about humanity’s ability to achieve netzero carbon emissions in the electric power generation and transportation sectors—without the large government subsides predicted as recently as a decade ago. It is known that the intermittency and seasonal variability of the electric power supply from wind and solar sources pose significant barriers to broad-based acceptance of clean electric power. Low-cost options for storing large quantities of renewable electric power would lower/eliminate these barriers and meet an unmet need in both the power generation and transportation sectors. Rechargeable electrochemical cells (a.k.a. batteries) based on metallic anodes, including lithium, zinc, and aluminum, offer the potential for transformative advances in cost-effective storage of electrical energy. Research over the last decade has shown that recharge of any metal anode requires reversible nucleation and growth of crystalline structures with symmetries that are rarely, if ever, consistent with those dictated by the fields inside a closed battery cell. This means that the interfacial products from spontaneous electrode growth reactions in a battery cell are in most cases fundamentally incompatible with requirements for achiving the very high levels of reversibility required for practical relevance. This talk addresses this problem by first considering the fundamental stability limits for metal electrodeposition processes in liquid and semisolid structured electrolytes from multiple perspectives. The analysis leads to testable design concepts for enabling metal anodes with high levels of reversibility.

Professor Lynden A. Archer

Bio: 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 in 1993 and was a Postdoctoral Member of the Technical Staff at AT&T Bell Laboratories in 1994. 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, a 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 previously served as Director of the Smith School of Chemical and Bimolecular Engineering at Cornell University from 2010 to 2016 and Deputy Editor of Science Advances from 2017-2021. 

Zoom Link: https://stanford.zoom.us/j/92153920201?pwd=YW5PV1kxek9Cd2xuY0xwWU9zNWdWUT09

Zoom Password: 257509

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