Tag: EIS

Presentations from event at DTI Århus on ‘experience exchange of battery testing’

On June 29, 2017, Danish Technological Institute (DTI) in Århus was hosting a DBS event on knowledge sharing of testing commercial lithium ion batteries. Bjarne Johnsen and Kjeld Nørregaard from DTI gave an interesting laboratory tour of their battery test facilities. The laboratory includes test equipment for battery cycling and temperature chambers. Practical issues like battery fixture construction, voltage …

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Permanent link to this article: http://batteriselskab.dk/article/presentations-from-event-at-dti-arhus-on-experience-exchange-of-battery-testing.htm

Highlights from Danish Battery Symposium 2017

The 2017 symposium in the Danish Battery Society was hosted by Dorthe Ravnsbæk and her group at the University of Southern Denmark in a comfortable campus setting outside Odense. The ambition of this years symposium was to follow up on the working groups established last year to enable more networking and direct knowledge sharing. After a short but …

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Permanent link to this article: http://batteriselskab.dk/event/highlights-from-dbs-symposium-2017.htm

EIS Workshop

Location DTU Lyngby, Bygning 101, lokale S14 Time 24/10 2016 kl. 12.30-16 About the workshop It is our pleasure to invite all members of DBS to a seminar on impedance spectroscopy. The seminar is arranged in accordance with the action points established during the annual DBS meeting in the in Working Group 2: Electronic and …

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Permanent link to this article: http://batteriselskab.dk/event/eis-workshop.htm

Minutes from meeting on uniform electrode coating

It was a pleasure to welcome participants from Aarhus University, University of Southern Denmark, Technical University of Denmark and the Danish Technological Institute to a morning meeting at Haldor Topsøe in Lyngby July 7 about sharing hands-on experiences with battery material testing. The meeting was held in accordance with the action point established during the annual …

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Permanent link to this article: http://batteriselskab.dk/event/minutes-from-meeting-on-uniform-electrode-coating.htm

Highlights from Danish Battery Symposium 2016

The third annual symposium in the Danish Battery Society was hosted by DTU Energy in the comfortable meeting center at DTU Lyngby Campus. The ambition of this years symposium was different from previous years with a more open program to enable more networking and direct knowledge sharing. The speakers Don Siegel from University of Michigan and Kevin …

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Permanent link to this article: http://batteriselskab.dk/event/highlights-from-danish-battery-symposium-2016.htm

Using impedance spectroscopy to probe conductivity properties in electrode materials

To kick off the working group on “Electronic and Ionic Conduction of Electrode Materials” at the Danish Battery Symposium 2016, Daniel Sørensen held a short presentation about the use of impedance spectroscopy to obtain values related to conductivity properties in electrode materials. Steen and Eivind mentioned that the impedance measured was very dependent on the …

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Permanent link to this article: http://batteriselskab.dk/event/presentation/using-impedance-spectroscopy-to-probe-conductivity-properties-in-electrode-materials.htm

Workshop on battery testing procedures

AAU is hosting the next event within the Danish Battery Society on Wednesday the 21st of May 2014. The goal of this workshop is to discuss, reflect and share the knowledge and experience on different battery testing protocols in the Danish Battery Society. Please sign up Go to the invitation page and signup form.

Permanent link to this article: http://batteriselskab.dk/link/workshop-on-battery-testing-procedures.htm

Chemical processes, their equivalent circuits and common pitfalls

Further elaboration on the equivalent circuits for EIS measurements and how they are linked to the chemical processes. Johan also explained some of the pitfalls of using equivalent circuits to model the impedance response, as it is always possible to construct an equivalent circuit with the right output characteristics, but that might not be a …

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Permanent link to this article: http://batteriselskab.dk/event/presentation/chemical-processes-their-equivalent-circuits-and-common-pitfalls.htm

General electrochemistry, equivalent circuit models and measurement techniques

Presentations on general electrochemistry such as electrode-electrolyte interfaces and basic electrochemical relations including the Nernst equations and the Butler-Volmer equation. Explaination of the background for equivalent circuit models and how the impedance response looks for these circuits in a Nyquist plot. To give a better understanding of EIS measurements a practical example is shown.  General …

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Permanent link to this article: http://batteriselskab.dk/event/presentation/general-electrochemistry-equivalent-circuit-models-and-measurement-techniques.htm

EIS examples on different cathodes and Lipon

EIS measurements made on self-produced batteries and on the individual components of the battery to understand how EIS measurement are linked to the different physical components. EIS examples on different cathodes and Lipon  

Permanent link to this article: http://batteriselskab.dk/event/presentation/eis-examples-on-different-cathodes-and-lipon.htm