Ming Tang
Associate Professor
Department of Materials Science and NanoEngineering
Rice University, U.S.

Date: July 28, 2021
Time: 1000h ET
Sponsor: Hiden Analytical

During battery (dis)charging, lithium (de)intercalation in electrodes is usually spatially non-uniform across multiple length scales. Such a phenomenon is a major impediment to battery performance and life as it causes energy under-utilization and induces over-(dis)charging, etc. While reaction heterogeneity is often attributed to mass transport limitation, this talk highlights the important roles of thermodynamic factors including elastic energy and phase transformations, the understanding of which is important for the development of mitigation strategies. Through combined modeling and characterization, how stress could destabilize the lithium (de)lithiation front in single crystalline and polycrystalline intercalation compounds is elucidated. Also, a fundamental driving force for dendrite growth on the lithium metal anode during electrodeposition is provided. Stress relief thus offers a promising approach to improving reaction uniformity at the particle level. At the cell level, the reaction distribution that within the porous electrode is strongly influenced by how the electrode’s equilibrium potential varies with the state of charge, is discovered. Two types of prototypical reaction behavior emerge from common electrode materials with significant impact on the thick electrode performance. This finding leads to an efficient analytical model for optimizing battery configurations in place of common battery cell simulations. (more…)

Presented by Kelsey A. Stoerzinger on July 26

Kelsey A. Stoerzinger
Assistant Professor of Chemical Engineering
Oregon State University
Pacific Northwest National Laboratory

Date: July 26, 2021
Time: 1000h PT
Price: There is no cost to register for this event.

The webinar is open to the public; ECS membership is not required.
You must pre-register through ECS My Account.
Don’t have one? It’s easy to create–visit Create an Account now.

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The Electrochemical Society hosted Prof. John A. Rogers’ live online webinar, “Microfluidic Systems for the Skin: Quantitative Sensing of Biomarkers in Sweat,” on June 23, 2021. Below are answers to questions posed during the presentation.

NOTE: Registration is required to view the webinar.

Professor John A. Rogers is the Louis Simpson and Kimberly Querrey Professor of Materials Science and Engineering, Biomedical Engineering, and Neurological Surgery at Northwestern University, with affiliate appointments in Mechanical Engineering, Electrical and Computer Engineering, and Chemistry. He is also Director of Northwestern’s recently endowed Querrey Simpson Institute for Bioelectronics. Rogers completed an SM in physics and chemistry in 1992, and PhD in physical chemistry in 1995, at the Massachusetts Institute of Technology. He was a Junior Fellow in the Harvard University Society of Fellows from 1995 to 1997; worked at Bell Labs from 1997 to 2002; then served on the faculty of the University of Illinois for 13 years. Rogers received many important awards including a MacArthur Fellowship and membership in the National Academies of Engineering, Sciences, Medicine, Inventors, and the American Academy of Arts and Sciences. Rogers has published more than 750 papers, is a co-inventor on more than 100 patents, and co-founded several successful technology companies.   (more…)

Jill Venton
Professor and Chair
Department of Chemistry
University of Virginia, U.S.

Date: May 26, 2021
Time: 1300h EDT

This webinar discusses the latest strategies in making customized carbon electrodes for neurotransmitter detection. Various carbon nanomaterials are reviewed, including carbon nanotube yarns and carbon nanospikes. In addition, we examine how 3D printing can be used to make small, custom geometry carbon electrodes.

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The Electrochemical Society hosted Prof. Jenny Pringle’s live webinar, “The Development of New Ionic Electrolytes for Energy Storage Devices” on April 21, 2021. Her answers to questions that followed the presentation are provided below.

NOTE: Registration is required to view the webinar.

Prof. Jenny Pringle works in the Institute for Frontier Materials at Deakin University, Australia, as a chief investigator in the ARC Centre of Excellence for Electromaterials Science (ACES) and the ARC Industrial Transformation Training Centre “StorEnergy.” She received her undergraduate degrees and PhD at The University of Edinburgh, Scotland, before moving to Monash University, Australia, in 2002. From 2008-2012, she held an ARC Queen Elizabeth II Fellowship investigating the use of ionic electrolytes for dye-sensitized solar cells. Pringle moved to Deakin University in 2013. There she leads research into the development of new ionic liquids and organic ionic plastic crystals for applications including thermal energy harvesting, gas separation membranes, and lithium and sodium batteries. (more…)

Kelsey B. Hatzell
Assistant Professor of Mechanical Engineering
Assistant Professor of Chemical and Biomolecular Engineering
Flowers Family Dean’s Faculty Fellow in Engineering
Vanderbilt University, U.S. 

Date: May 5, 2021
Time: 1300h EDT
Sponsor: Hiden Analytical

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The Electrochemical Society, The Electrochemical Society of Japan, and The Korean Electrochemical Society are actively monitoring the worldwide coronavirus (COVID-19) outbreak and working to prepare for any potential impact on the upcoming PRiME 2020 meeting in Honolulu, Hawaii, from October 4-9, 2020.

At present, we are proceeding as planned with abstract submissions and all other preparations for PRiME 2020. In order to provide authors with as much time as possible, we are formally extending the abstract submission for PRiME from April 17 to May 1, 2020. (more…)