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Events at Department of Energy Technology

Industrial/PhD Course: Electrochemical Impedance Spectroscopy – Theory, Measurement and Analysis

Time

28.09.2020 kl. 08.30 - 02.10.2020 kl. 16.00

Description

Organizer

Professor Søren Højgaard Jensen, Aalborg University

Lecturers

Professor Søren Højgaard Jensen
Associate Professor Samuel Simon Araya, Aalborg University

ECTS: 5

Description

The course is a full-week course held in week 40.

Monday, Sepember 28th (7,4 hours):

Topic: General introduction to impedance spectroscopy.

Short description: This part of the course provides an introduction to concepts such as impedance elements, equivalent circuits, time-frequency domain relations, Fourier and Laplace transform and measurement methods. This part explains what creates impedance in electrochemical systems and how the impedance can be measured.

Lecturer: Søren and Samuel

Tuesday, Sepember 29th (7,4 hours):

Topic:  Measurement optimization and Lab session

Short description: This part discusses possible sources of measurement errors and noise. Various methods for error minimization will be presented. Students will form groups of 3-4 persons where at least one person in the group have previous experience with impedance measurements and ideally have a running experiment/test setup. The groups will visit existing test setups, examine the impedance measurement conditions and discuss if there is anything that can be done to improve the impedance measurements.

Lecturer: Søren and Samuel

Wednesday, Sepember 30th (7,4 hours):

Topic: Impedance Modeling

Short description: The goal of the modeling is to get the most information out of the measured impedance spectra, with due respect to the measurement uncertainties. Various equivalent circuits will be examined and used to model the impedance spectra provided by the students. Modeling tools will be introduced such as ZsimpWin, Zview and Elchemea.

Lecturer: Søren and Samuel

Thursday, October 1st (7,4 hours):

Topic: Advanced electrochemistry, measurement and analysis methods

Short description: This part of the course provides an introduction to various advanced measurement methods such as 3-electrode setups, rotating disc measurements, higher harmonics, and systematic test variations. This part also present various advanced analysis methods such as DRT, ADIS and bulk fitting.

Lecturer: Søren and Samuel

Friday, October 2nd (7,4 hours):

Topic: Online diagnostics and trends

Short description: This part of the course discuss examples of online diagnostics of electrochemical devices and adaptive control thereof. The focus is on opportunities and challenges for further scientific and commercial applications of electrochemical impedance spectroscopy.

Lecturer: Søren and Samuel

Prerequisites

Familiarity with complex numbers and basic calculus.

Form of evaluation

Class discussion, case study exercise, lab measurements, presentation of group work results.

Registration

https://phd.moodle.aau.dk

Price

6000 DKK for PhD students outside of Denmark and 8000 DKK for the Industry.

Host

Department of Energy Technology

Address

Aalborg University, Pontoppidanstræde 101, room 1.015, 9220 Aalborg East