Kolloquiumsvortrag, Prof. Massimo Guarnieri, University Padua (Italien) / am 24.04.2017

24.04.2017 von 17:15 bis 18:45

Institute Ostufer, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel

Titel: Vanadium Redox Flow Batteries: Potentials and Challenges of an Emerging Storage Technology.

Abstract:  Energy storage is expected to expand its importance the next future, in order to provide increasing services, both mobile and stationary. Depending on their kind, rated powers vary from a few kilowatts (excluding portable electronics) to some gigawatts, with operating times ranging from fractions of a second to several hours and response times from milliseconds to some minutes. Electrochemical storage technologies are by far the most versatile form of energy storage to face this vast rising demand, and a huge market is soaring. Recent techno-financial analyses have forecasted investments exceeding US$10 billion/year on energy storage technologies by 2020.

The most enticing forms of electrochemical storage should allow to separated power and energy rating, in order to tailor discharge duration at will and the most promising solution for doing so at a reasonably high round-trip efficiency and at a high cycle life are flow batteries. For this reason, several major laboratories around the world are intensively researching them.

My talk will present the main feature of the most developed chemistry of flow battery, namely Vanadium Redox Flow Battery. An overview will be delivered on how they work, what are their architectures, needed ancillary technology, including power electronic interfaces, and possible applications, from small domestic end-user to smart-grid substations. The strengths, weaknesses and challenges of vanadium redox flow batteries will be highlights. A particular reference will be given to the research programs on VRFBs on-going at University of Padua, both experimental and numerical, aiming at taking them to full commercial success.


Massimo Guarnieri joined the CNR (Italian National Council of Researches) in 1882 and the University of Padua in 1983, where he is full professor of electrical engineering since 2000. He is a ICS (International Compumag Society) Member since 2008, an IEEE Member since 2012 and a ECS (Electrochemical Society) Member since 2014. Initially he centered his work on the analysis and design of large electromagnetic devices for the thermonuclear fusion research experiments Eta-Beta II and RFX, both built at Padua. For the latter he worked in and eventually led the Magntic System Group, responsible for the device’s major inductor systems (diameter up to 8 m, 50 kA, 200 kV). He later centered his interests in the area of numerical computation for electromagnetic and coupled problems. Since 13 years he is involved in the analysis, optimization and design of fuel cells, redox flow batteries and electrochemical storage devices, including modelling, experimental investigation, and parameters/performance identification. He is also widely interested in history of technology and science. His scientific production of over 200 items includes papers on journals and conference proceedings (over 110 indexed in Scopus) and several textbooks. He chairs the Education & Profession Group of the AEIT-ASTRI Italian Electrical Engineers Institution. He is the official representative of the University of Padua in N.ERGHY, the European Union association representing the universities and research institution in the Fuel Cell and Hydrogen Joint Technology Initiative (FCH JTI). He is a columnist and editorial board member of the IEEE Industrial Electronics Magazine.

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