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It's Big and Long-Lived, and It Won't Catch Fire: The Vanadium Redox-⁠Flow Battery
By Z. Gary Yang
Posted 26 Oct 2017 | 15:00 GMT

{A nice discussion & history of the concept}

Go Big: This factory produces vanadium redox-flow batteries destined for the world’s largest battery site: a 200-megawatt, 800-megawatt-hour storage station in China’s Liaoning province.

The factory sprawls over an area larger than 20 soccer fields. Inside, it’s brightly lit and filled with humming machinery, a mammoth futuristic manufactory. Robot arms grab components from bins and place each part with precision, while conveyor belts move the assembled pieces smoothly down production lines. Finished products enter testing stations for quality checks before being packed for shipping.

It has been called a gigafactory, and it does indeed produce vast quantities of advanced batteries. But this gigafactory is in China, not Nevada. It doesn’t make batteries for cars, and it’s not part of the Elon Musk empire.

Opened in early 2017, in the northern Chinese port city of Dalian, this plant is owned by Rongke Power and is turning out battery systems for some of the world’s largest energy storage installations. It’s on target to produce 300 megawatts’ worth of batteries by the end of this year, eventually ramping up to 3 gigawatts per year.

The scale of this “other” gigafactory may be impressive, but the core technology it makes is even more compelling. The Dalian factory produces vanadium redox-flow batteries, a specialized type whose time has finally come. The VRFB was invented decades ago but has emerged only recently as one of the leading contenders for large-scale energy storage.

Read more at:
https://webmailb.netzero.net/webmail/new/5?userinfo=150fb40fa9758ba8704b913d0c3a1d36&count=1539274286&cf=sp&randid=1314111742