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What is a flow battery?

In a battery, the electrolyte is the chemical medium that connects the two ends of a battery, the anode and the cathode. In ESS’ batteries, the electrolyte is made of iron, salt and water. “The flow battery is cheaper, safer and has better operational life than conventional lithium-ion storage,” Roberts said.

Which companies use flow battery technology?

The second company, ESS Tech ( NYSE: GWH ), has an iron flow battery and it is in the throes of scaling up and having real customers, while the third company RedFlow (ASX:RFX), which uses zinc bromine flow technology, is also scaling up. Here I look at these three companies to get a sense of recent developments in flow battery technology.

Will a new 'flow battery' be a bottom-line contributor?

Fairly soon, however, the company's new "flow battery" product should be a bottom-line contributor, too. The battery enables utility companies to store significant amounts of energy from renewable sources for up to 12 hours.

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