The ECS Pacific Northwest Section hosted Dr. Dong Ding’s live online webinar, “Electrochemical processing at intermediate temperatures (400-600°C),” on June 24, 2021. Answers to questions posed during the presentation follow.

Dr. Dong DingDr. Dong Ding is a senior staff researcher at Idaho National Laboratory (INL), where he leads a group of researchers in electrochemical processing and electrocatalysis for clean energy storage and conversion. He is a principal investigator for multiple projects including direct funded and Laboratory Directed Research & Development. Dr. Ding is also an adjunct professor in the departments of Chemical & Materials Engineering at New Mexico State University and University of Idaho. He received his PhD in Material Science and Engineering at the University of Science & Technology of China and was a Postdoctoral Fellow at the University of West Virginia and National Energy Technology Laboratory (2009-2010), and at the Georgia Institute of Technology (2010-2014). He has 89 peer-reviewed publications and holds three U.S. patents and 11 patent applications. (more…)

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…)

Register now!

ECS is offering virtual Short Courses beginning in September 2021 and as part of the 240th ECS Meeting in October 2021.

Popular ECS Short Courses deliver in-depth education for students and seasoned professionals on a wide range of electrochemical and solid state science topics. Novices and experts advance their technical expertise and knowledge through personalized instruction by academic and industry experts in an intensive short time period.

Don’t miss the opportunity to participate online in these courses! (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.

(more…)

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…)

Chockkalingam (Chock) Karuppaiah
Founder and Chairman, Vetri Labs, U.S.
Chief Technology Officer, Ohmium, U.S.

Date: July 14, 2021
Time: 1300h ET
Sponsor: Gamry Instruments & Hiden Analytical

Be it improving energy density or cycle life or reducing cost, understanding the failure modes of batteries in a non-destructive mode is critical during the design, product development, and manufacturing of lithium ion batteries. Electrochemical impedance spectroscopy (EIS) provides the ability to access and decouple the failure modes based on the processes’ time scale. Analysis of recorded EIS can be done either through phenomenological modelling or equivalent circuit modelling, with each having its own pros and cons.

This webinar reviews the basics of applying EIS for understanding the phenomena in lithium ion batteries, the experimental details and protocols, and the types of models with a few case studies. (more…)

Presented by Dr. Dong Ding on June 24

Dr. Dong Ding
“Electrochemical processing at intermediate temperatures (400-600°C)”
Senior Staff Engineer in Energy and Environment Science and Technology
Idaho National Laboratory

Date
Thursday, June 24, 2021

Time
1000h PT

Price                                 
There is no cost to register for this event.

Pre-registration is required through ECS My Account.
Don’t have one? It’s easy to create–visit Create an Account now.

ECS membership is not required to participate.

(more…)

John Rogers
Professor
Northwestern University, U.S.

Date: June 23, 2021
Time: 1000h EDT
Sponsor: Hiden Analytical

Recent advances in materials, mechanics, and manufacturing establish the foundations for high performance classes of microfluidic lab-on-a-chip technologies that have physical properties matched to those of human skin. The resulting devices can integrate with the surface of the skin in a water-tight yet physically imperceptible fashion, to provide continuous, clinical-quality biochemical information on physiological status via capture, storage, and in situ analysis of sweat. This talk summarizes key ideas and presents specific recent examples in skin-interfaced microfluidic technologies designed for applications in sports performance, worker safety, and nutritional monitoring. (more…)

Don’t miss the last webinar of CorroZoom Season 1: Molecular Modeling of Corrosion Inhibitors

Time and Date: June 9, 2021 at 0800h EST
Registration is free
Presenter:
Anton Kokalj
Department of Physical and Organic Chemistry
Jožef Stefan Institute
Ljubljana, Slovenia

After registering, you will receive a confirmation email containing information about joining the webinar.

(more…)

Posted in Webinars

The Electrochemical Society hosted Prof. Jill Venton’s live webinar, “Novel Carbon Electrodes for Neurochemistry,” on May 26, 2021. Below are answers to questions posed after the presentation.

NOTE: Registration is required to view the webinar.

Dr. B. Jill VentonDr. B. Jill Venton is Professor and Chair of the Department of Chemistry at the University of Virginia (UVA), U.S. She is also affiliated with the Neuroscience Graduate Program and UVA Brain Institute. Dr. Venton received her BS in Chemistry from the University of Delaware, U.S.; her PhD in Chemistry from The University of North Carolina at Chapel Hill, U.S.; and did postdoctoral research at the University of Michigan, U.S. Her career at UVA started in 2005 and she became Chair of the Department of Chemistry in 2019. The Venton Group’s research focuses on developing analytical chemistry tools for neuroscience research. The lab studies many neuroscience diseases, from Parkinson’s, to addiction, stroke, and aging.

Q&A

Is it a normal practice to have widely different concentrations of analyte while comparing their CVs? (more…)

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