Vanadium Oxygen Fuel Cell utilising high concentration electrolyte

We published an open access article about a Vanadium Oxygen Fuel Cell (VOFC) utilising up to 3.6 mol/L high concentration vanadium electrolyte. Compared to Vanadium Redox Flow Batteries, VOFCs allow much higher theoretical energy density by the replacement of the positive electrolyte with an oxygen (air) electrode. The replacement allows the usage of higher concentrated vanadium electrolytes which further increases the theoretical energy density. We present here a VOFC with 3.6 M vanadium solution, which has a theoretical maximum energy density of 146 Wh/L.

Vanadium Oxygen Fuel Cell Utilising High Concentration Electrolyte
M. Risbud, C. Menictas, M. Skyllas-Kazacos, J. Noack, Batteries 2019, 5(1), 24 (OPEN ACCESS)

Industry visit of 15 MW /60 MWh VRFB

In July 2018 we have made an industry visit to one of the largest vanadium flow batteries with 15 MW / 60 MWh. The Battery is owned by Hokkaido Electric Power Corp. near Chitose on Hokkaido Island in Japan and built by Sumitomo Corp. The purpose of the battery is to stabilize the grid with frequency regulation but also with peak shift.

CENELEST has published two papers in Journal of Energy Chemistry

CENELEST has published two papers in a coming special issue about Flow Batteries in the Journal of Energy Chemistry. The first paper is a review about additives for vandium flow batteries. The second is about the influence of electrochemical treatment of electrodes for vanadium flow batteries: