Australia-based zinc-bromine flow battery company Redflow, which has a market cap of nearly US$60 million, has halted stock market trading as it prepares a capital raise.

Flow battery companies CMBlue Energy and Redflow, both of whom have developed solutions using alternatives to vanadium, have struck commercial deals in Austria and the US, respectively.

CellCube has agreed a five-year, three-million litre/year bulk electrolyte supply deal with producer US Vanadium.

Eos Energy Enterprises’ leadership has claimed gross positive margins can be achieved in a year and a half. 

From data centres to long-duration storage for the grid, zinc looks increasingly likely to play a part in the energy transition, writes Dr Josef Daniel-Ivad from the the Zinc Battery Initiative.

News in brief from around the world in energy storage.

Germany company Voltstorage, claiming to be the only developer and maker of home solar energy storage systems using vanadium flow batteries, raised €6 million (US$7.1 million) in July.

Australian stock exchange-listed flow battery manufacturer Redflow has scored a second order for its devices from the Rural Connectivity Group, a New Zealand-based telecommunications company.

“The bottom line is that this is a good business decision. We will get back our money in eight to 10 years at the current price of power. As the price of energy goes up, we’ll pay it back even quicker.”