It’s been predicted for some time that the redox flow energy storage space will, after some turmoil and rapid consolidation, find success in providing energy storage at durations of more than four hours. This past couple of weeks have been a tale of both turmoil and success.

Flow battery manufacturer VIZn Energy has confirmed that nearly all its employees have been “furloughed” amid financial difficulties, but denied that the company has exited the business altogether.

Primus Power is among a handful of makers currently commercialising their flow batteries, with rivals that include RedT, VIZn Energy and Redflow. Early customers have included Microsoft, which installed a Primus battery at its corporate HQ in a pilot project. Andy Colthorpe spoke with Primus Power CEO Tom Stepien to learn more.

Nuclear generation company Exelon and chemical company Albemarle, which has lithium mining facilities, are investigating opportunities in the energy storage space, having partnered with battery energy storage investor Volta Energy Technologies to do so.

A new solid state electrolyte for lithium batteries developed by Panasonic and nano-electronics and digital tech innovation hub imec has achieved “exceptionally high” ionic conductivity at room temperature.

Aquion Energy, maker of energy storage batteries and whole systems based on a novel electrolyte with a chemical composition similar to saltwater, is back in business.

Axion Power International, focusing on “hybrid battery technology” that combines lead acid with the properties of carbon-based supercapacitors, has warned that it is in financial trouble after failed attempts to commercialise its devices.

Kodak and Polaris Battery Labs have collaborated on a support system for new battery manufacturers and products.

An analyst has hailed the work of a University of Cambridge team developing the “ultimate” lithium-air battery for overcoming some of the technology’s limitations, but has expressed doubts as to its prospects for commercialisation.

The UK’s Renewable Energy Association (REA) has launched two new trade groups to represent the solar and storage industries respectively.