Editor’s note: This briefing was written in a joint collaboration between Admiral Instruments and Zahner Scientific Instruments. Admiral Instruments will be exhibiting (booth 400) at the 232nd ECS Meeting in National Harbor this fall. See a list of all our exhibitors.

lithium batteries

Image: Multiple stacks of lithium batteries


Methods combining EIS with charge-discharge cycles are among the most powerful tools available to collect in-situ information about electrochemical systems such as battery cells and stacks. However, accurately measuring the rapidly-changing states of the electrodes, electrolytes, and other non-steady-state materials within battery systems is a challenge.

This issue is particularly troublesome when changes in state occur at timescales even shorter than a single charge-discharge cycle or single EIS frequency sweep. Accurately interpreting results from an EIS measurement requires either making the ill-advised assumption of steady-state conditions throughout the duration of a frequency sweep, or accounting for drift effects by using modeling tools that are often time-consuming or ineffective.


Posted in Guest Post

Study EIS in Minnesota!

Join the Twin Cities Section this April for a hands-on, day-long introduction into the field of electrochemical impedance spectroscopy (EIS)! The Introduction to EIS short course will be held at the Hampton Inn in Shoreview, MN on Friday, April 29th, from 9:00 a.m. to 4:30 p.m. (CT) and will be taught by impedance spectroscopy expert Professor Mark Orazem.

What is a short course?

Taught by academic and industry experts in intimate learning settings, short courses offer students and professionals alike the opportunity to greatly expand their knowledge and technical expertise.

Introduction to EIS

This EIS short course is an all-day class designed to provide students and the seasoned professional with an interest in applying electrochemical impedance techniques to study a broad variety of electrochemical processes. Attendees will develop an understanding of the technique, how to develop models with physical significance, and how to use graphical and regression methods to interpret measurements. Examples will include aMark Orazemspects of corrosion, biological systems, and batteries.

About the instructor

Professor Mark Orazem is a recognized expert on impedance spectroscopy and coauthor of a textbook on electrochemical impedance spectroscopy. Orazem is a Distinguished Professor of Chemical Engineering at the University of Florida, a Fellow of the Electrochemical Society, and recipient of the 2012 ECS Linford Award.

Registration Fees
Registration Fees Early-Bird Fees* Regular Fees*
ECS Member $400 $500
Nonmember $450 $550
ECS Student Member $200 $250
Student Nonmember $250 $300

* All prices are in U.S. Dollars.

Save $$ on registration and enjoy the benefits of membership. Become an ECS member today!

Pre-registration for short courses is required. The early-bird deadline is April 15, 2016. All course materials are prepared in printed format for registrants upon arrival.

Registration opens Monday, March 28, 2016!

Contact twincitiesecs@hotmail.com with any questions.

Attending the 229th ECS Meeting in San Diego? Check out the five ECS short courses being offered at the meeting, including Advanced Impedance Spectroscopy, taught by Professor Orazem!