Initial test results from the RedFlow 5 kW, 10 kWh zinc-bromide module, phase 1.

Abstract

In this paper the performance results of the RedFlow zinc-bromide module (ZBM) Gen 2.0 are reported for Phase 1 of testing, which includes initial characterization of the module. This included physical measurement, efficiency as a function of charge and discharge rates, efficiency as a function of maximum charge capacity, duration of maximum power supplied, and limited cycling with skipped strip cycles. The goal of this first phase of testing was to verify manufacturer specifications of the zinc-bromide flow battery. Initial characterization tests have shown that the ZBM meets the manufacturer's specifications. Further testing, including testing as a function of temperature and life cycle testing, will be carried out during Phase 2 of the testing, and these results will be issued in the final report, after Phase 2 testing has concluded. 4 ACKNOWLEDGMENTSThis work is funded by Dr. Imre Gyuk of the Department of Energy Office of Electricity, Energy Storage Program. We would like to thank RedFlow limited for supplying the zinc-bromine module that was the subject of these tests. We also thank Steven Hickey, Redflow Limited's lead test engineer, for commissioning the system and providing operator training.5

An Operating Control Strategy of Zinc Bromine Flow Battery Energy Storage Systems in Microgrid

“…Literature [6][7] analysis the Zinc bromine flow batteries work principle, function characteristics and industrial application situation, but does not consider the battery charge and discharge control. Literature [8] study on the operation characteristics and battery performance of zinc bromine cells under different conditions. Above all literature on Zinc bromine cells are mainly focused on the original reason and battery performance testing research, but the application research of micro grid in this field is still lacking.…”