Flow Battery tagged posts

Sodium-potassium alloy is a room-temperature liquid metal that could unlock a high-voltage flow battery. (Image credit: Antonio Baclig)

A new type of flow battery that involves a liquid metal more than doubled the maximum voltage of conventional flow batteries and could lead to affordable storage of renewable power. A new combination of materials developed by Stanford researchers may aid in developing a rechargeable battery able to store the large amounts of renewable power created through wind or solar sources. With further development, the new technology could deliver energy to the electric grid quickly, cost effectively and at normal ambient temperatures.

The technology – a type of battery known as a flow battery – has long been considered as a likely candidate for storing intermittent ...

A new material developed at Argonne shows promise for batteries that store electricity for the grid. The material consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions.
Credit: Robert Horn, Argonne National Laboratory

A new material shows promise for batteries that store electricity for the grid. The material, created by scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory, consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions...

PNNL’s all-organic aqueous flow battery uses two inexpensive and readily available electrolytes, one containing methyl viologen and another with 4-HO-TEMPO.

Organic battery will be 60% cheaper than standard vanadium flow battery. The organic aqueous flow battery is expected to cost $180 per kilowatt-hour once the technology is fully developed. The lower cost is due to the battery’s active materials being inexpensive organic molecules, compared to the commodity metals used in today’s flow batteries.

“Moving from transition metal elements to synthesized molecules is a significant advancement because it links battery costs to manufacturing rather than commodity metals pricing” said Imre Gyuk...