The growing need for grid-scale energy storage has inspired dozens of innovative approaches and hundreds of millions of dollars in venture funding over the past five years. Although various lithium-based technologies get much of the press, two firms have recently announced breakthroughs in vanadium-based flow batteries.
In a flow battery, liquid electrolytes are stored in separate tanks and interact via a cell membrane to accept or release a charge. In theory, they could be superior to lithium-ion batteries for grid-scale applications. But first-generation products suffered from numerous problems, including unexpected failures.
Now, two firms are proclaiming breakthroughs. WA-based UniEnergy Technologies has a vanadium redox flow battery that features improvements originally developed at Pacific Northwest National Laboratory, where the company's founders worked until recently. At least $2 million in federal funding went into the PNNL research that led to the technology UET is bringing to market, according to Xconomy.
View all SMART GRID Bulletins click here
Enter your email-id to subscribe to theSMARTGRID Bulletins
12 December 2017