TU Berlin

Electrical Energy Storage TechnologyChair

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Prof. Dr.-Ing. Julia Kowal

Julia Kowal

Room: EMH 163


Einsteinufer 11

Sec. EMH 2

10587 Berlin

Phone: +49 (0)30 314-25394

Fax:     +49 (0)30 314-21133


Consultation hours: On Mondays 9 - 10 h and on appointment. In summer semester 2022 (25.4.-18.7.), the consultation hour will be from 10-11 h.

In most weeks, I am in the office on mondays, so a personal meeting is possible again. To be sure, please ask before you come. Alternatively, you can phone me or we can arrange a Zoom meeting.


since 03/2014
Chair of Electrical Energy Storage Technology at the TU Berlin
01/10 - 02/14
Senior engineer at the department of Electrochemical Energy Conversion and Storage Systems, ISEA, RWTH Aachen
PhD at RWTH Aachen, Topic: "Spatially-resolved impedance of nonlinear inhomogeneous devices - using the example of the lead-acid battery"
Visiting researcher at the company Exide in Azuqueca de Hénares, Spain
Visiting Researcher at the research centre RISØ in Roskilde, Denmark
Research assistant at the department of Electrochemical Energy Storage Conversion and Systems at the Institute For Power Electronics and Electrical Drives (ISEA), RWTH Aachen
Studies of electrical engineering at RWTH Aachen Diploma thesis: "Investigation of the thermal behaviour of electrochemical energy storage systems in vehicle on-board power supplies"



Awards and Scholarships
Herbert-Kind-Price of ETG in the VDE
Brigitte-Berkenhoff-Price for the best graduate in the field of electrical engineering at RWTH Aachen
Aachen's VDE price
Sponsorship through the Prof. Dr. Koepchen Merit Foundation (RWE)


Model Parameterization of Nonlinear Devices Using Impedance Spectroscopy

Kowal, J. and Hente, D. and Sauer, D. U.

IEEE Trans. Instrumentation and Measurement, 2343-2350. 2009

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Detailed Analysis of the Self Discharge of Supercapacitors

Kowal, J. and Avaroglu, E. and Chamekh, F. and Senfelds, A. and Wijaya, D. and Sauer, D. U.

ESSCAP 08 2008

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Energy Storage Technologies for Grids With High Penetration of Renewable Energies and for Grid Connected PV Systems

Sauer, D. U. and Blank, T. and Kowal, J. and Magnor, D.

23rd European Photovoltaic Solar Energy Conference 2008

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Stand der Speichertechnik und Perspektive von Plug-in Hybriden und Elektrofahrzeugen

Kowal, J.

IHK Automotive Rheinland, \glqq Erzeugen und Speichern elektrischer Energie in Fahrzeugen\grqq 2008

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Lifetime Simulations of lead acid batteries in power systems with high penetration of renewable energy such as solar and wind

Andersson, A. and Bindner, H. and Cronin, T. and Gehrke, O. and Kowal, J.

Second International Renewable Energy Storage Conference (IRES II) 2007

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Batteriediagnostik und Batteriemonitoring in Hybridfahrzeugen

Sanders, T. and Kowal, J. and Waag, W. and Gerschler, J. B. and Sauer, D. U.

Internationaler ETG-Kongress 2007 - Hybridantriebstechnik 2007

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Parameterisation of nonlinear devices using impedance spectroscopy

Schiffer, J. and Hente, D. and Sauer, D. U.

7th International Symposium on Electrochemical Impedance Spectroscopy 2007

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Model prediction for ranking lead-acid battery according to their expected lifetime in renewable energy systems and autonomous power supply systems

Schiffer, J. and Sauer, D. U. and Bindner, H. and Cronin, T. and Lundsager, P. and Kaiser, R.

J. Power Sources, 66-78. 2007

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