Zinc-Bromine Flow Battery

Prof. Matthew Suss | Mechanical Engineering; Chemical Engineering


Chemistry and Materials | Sustainability and Energy

The Technology

Grid-scale energy storage is a fast-growing market, as it is needed to enable solar and wind energy to reach their full potential. Electrochemical systems are widely used to store energy (flow batteries) and desalinate water (capacitive deionization). Widespread adoption of redox flow batteries (RFBs) for renewable energy storage is inhibited by a relatively high cost of storage. This is due largely to typical RFBs requiring two flows, two external tanks, and expensive ion-exchange membranes.
Inexpensive Zn-Br2 RFB which is membraneless and requires only a single flow. The flow is an emulsion consisting of a continuous, Br2-poor aqueous phase and a dispersed, Br2-rich polybromide phase, pumped through the channel separating anode and cathode..


  • Designed to leverage gravity forces to enable more densely packed electrode structures.
  • Improves electrode performance while remaining flowable.
  • Achieve higher power densities and lower energy losses during operation.

Applications and Opportunities

  • An electrode in energy storage systems. The most promising energy storage system for this electrode is the flow battery.


arrow Business Development Contacts
Shikma Litmanovitz
Director of Business Development, Physical Science