Lynden A. Archer
School of Chemical & Biomolecular Engineering
Title: Electrokinetics in viscoelastic liquid electrolytes above the diffusion limit
Electrodeposition is an electrochemical process used for creating metal, colloid, and charged polymer coatings on conductive substrates. The process also plays an important role in electrochemical storage technologies based on rechargeable batteries, where it must be carefully managed to facilitate stable and safe operations at low operating temperatures, high rates, and over many cycles of charge and discharge. A successful electrodeposition process requires fast, but stable interfacial transport of charged species (e.g. ions, particles, & polymers). This talk considers the general stability of electrodeposition in liquid electrolytes and explores the role of electrolyte viscoelasticity in achieving stable electrokinetics in closed electrochemical cells. Beginning with an analysis of electrokinetics in newtonion liquids, the talk will evaluate the stability limits of voltage-driven ion transport at ion-selective interfaces in viscoelastic media.
Lynden Archer is the James A Friend Family Distinguished Professor of Chemical and Biomolecular Engineering and David Croll Director of the Cornell Energy Systems Institute. His research focuses on transport properties of polymer/particle hybrids and their applications in electrochemical energy storage technologies. 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 fellow of the American Physical Society (APS) and an elected member of the National Academy of Engineering (NAE). His research contributions have also 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 recognition for 2014-2016. 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 Cornell’s Robert Fredrick Smith School of Chemical and Bimolecular Engineering from January 1, 2010 to June 30, 2016.