redox-flow batteries

Redflow CEO, Tim Harris, is confident the company’s Gen3 flow battery will go into production in the first half of this year, once the results from its customer trial are evaluated.

The choice of battery storage technologies in support of solar energy supply is broadening to suit a variety of emerging applications. VSUN has just made its first power play for vanadium-redox-flow batteries in the off-grid residential market.

Spanish renewable energy company Abengoa will deploy a 3.5 MW solar micro-grid at a vanadium mining site operated by Bushveld Minerals in South Africa. The storage system will be provided by Austria-based storage specialist Enerox Holdings Limited.

TNG Ltd. has set up a new subsidiary, TNG Energy, to advance its green ambitions by making vanadium redox flow batteries for off-grid solutions.

Swedish scientists have developed a redox flow battery with polymer electrodes, based on a special conductive polymer known as PEDOT. The battery features a water-based electrolyte based on a solution of redox quinone molecules, which can be extracted from forest-based materials.

Austrian researchers have replaced heavy metals and rare earths with conventional vanillin in a redox flow battery. The Graz University of Technology team now wants to bring this technology to market.

German scientists have developed a new electrolyte material that can cope with temperatures of up to 60 C. The material is based on ferrocene, an organometallic molecule known for good redox stability that is commonly used as an internal standard for electrochemical measurements.

Scientists in the U.S. claim to have demonstrated an inexpensive, long-life, safe and eco-friendly redox flow battery. The device is said offer coulombic efficiency of 97.9% thanks to functional electrolyte additives, pH and elevated temperature.

German production equipment provider Schmid and Saudi chemical group Sabic are planning to begin activities at a new factory in Saudi Arabia, with production being expected to begin in 2021.

Matt Harper, chief commercial officer of newly-merged British-Canadian vanadium redox flow battery business Invinity Energy Systems has spoken to pv magazine about the VS3-022 Battery Unit it is marketing for grid scale solar-plus-storage projects and why it may be a better bet than lithium-ion.