Work on system modelling and cost analysis started in SONAR

The University of New South Wales and Fraunhofer ICT started their work on stack and system modeling and cost analysis for organic flow batteries, with one new PhD student at each of the two institutions. The system modeling will be carried out using a multiphysics approach, where first the hydraulic, electrochemical and thermal properties of a single cell, then a stack and finally a whole flow battery system are modeled and simulated. The results will lead to a better understanding of systems and thus to cheaper and more reliable systems, and also form the basis for the cost analysis.

In the cost analysis of flow battery systems, Fraunhofer ICT is concerned with linking technical parameters with costs using mathematical functions. The objective is to map a cost structure for the investment costs of flow batteries in order to determine cost proportions and for sensitivity analyses. Based on the calculated costs, batteries can be compared on the basis of investment costs (CAPEX). A much more substantiated comparison is possible based on levelized cost of storage (LCOS), where lifetime costs are calculated in relation to energy throughput. In the future, it will be possible to calculate the LCOS of a large number of new organic flow battery chemistries automatically, in order to be able to develop low-cost candidates for new, safe and environmentally friendly organic flow batteries for the storage of renewable energy.

SONAR is an EU-Australian Project for the development of a high-throughput screening method to find new organic activ materials for flow batteries:

Talk at the 72nd Annual Meeting of the International Society of Electrochemistry in September 2021

Jens will talk at the 72nd Annual Meeting of the International Society of Electrochemistry on Jeju Island in South Korea about the results of some cell tests with Iron/Iron redox flow batteries. Iron/Iron redox flow batteries are a promising battery technology were the energy is stored in the redox transitions of Fe/Fe2+//Fe2+/Fe3+. Iron is a very cheap, abundant and non-toxic active material and its usage can lead to cheap and safe stationary batteries for renewable energy. Jens will give an overview about results of cell tests of batteries with recombination cells and the recombination itself.

Presentation at the 240th meeting of The Electrochemical Society in Orlando, Florida, USA

This year, the fall meeting of the electrochemical society (ECS) will be held in Orlando, Florida, USA, from September 10 to 14. Jens Noack will give a presentation on the results of techno-economic modeling and simulations of vanadium redox flow batteries and organic redox flow batteries.
Date/Time/Location: October 14, 2021 (8:00h-8:20h, W224B)
Symposium: A01: New Approaches and Advances in Electrochemical Energy Systems