redox flow

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.

A new research paper looks at the membranes used for applications in vanadium redox flow batteries. It outlines various membrane technologies and the obstacles to bringing batteries to mass production.

Researchers in India have developed a 5 kW/25 kWh vanadium redox flow battery with an energy density of 30 watt-hours to 40 watt-hours per liter.

Researchers claim to have developed a cheaper, faster method of assembling the field flow plate layers of the membrane electrode assembly used in vanadium redox flow batteries, which they claim outperforms traditional components.

Australia-based battery supplier Redflow has joined forces with smart-energy systems specialist carbonTRACK to add virtual power plant functionality to its flow batteries.

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.

An international team has developed an integrated solar flow battery which has been suggested as ideal for off-grid locations. The device, which combines energy conversion and storage in one unit, can be used for lighting and recharging cell phones.