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.

Adobe_PDF_Icon.svg General electrochemistry

Adobe_PDF_Icon.svg Laplace and Battery module testing

Adobe_PDF_Icon.svg Impedance elements and measurement techniques

Søren Højgaard Jensen

Søren Højgaard Jensen is working as a senior researcher at the technical university of Denmark (DTU) in the Energy Conversion and Storage division. His research is focused on Solid Oxide Electrolysis Cells (SOECs) and Lithium batteries.

He studied physics and mathematics at Copenhagen University and got his MSc in 2003. In 2006, he finalized his PhD at the Technical University of Denmark, Physics Department.

Recently, Søren conducted the construction of test facilities for operation of SOECs at elevated pressure. Pressurized operation is identified as one of the main keys to enable a full commercialization of the SOEC technology. The work was initiated within the Strategic Electrochemistry Research Center (SERC), a research center under the Danish Council for Strategic Research. He is now continuing the work in in the project CO2 Electrofuel under the Nordic Energy Research Council.

In 2011, Søren headed the construction of a battery state of health (SOH) model under the project EDISON project funded by the Danish ForskEL programme. Such a model can be used to predict the lifetime of batteries when exposed to specific operation conditions. This is a key step stone when evaluating the feasibility and economy of a given battery application. He is continuing this work by detailed studies of Lithium battery degradation mechanisms in the project ALPBES funded by the Danish Council for Strategic Research.

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