UniEnergy Technologies (UET) was a U.S. vanadium redox flow battery manufacturer in Mukilteo, Washington, which manufactured megawatt-scale energy storage systems for utility, commercial and industrial customers.
History The company was founded in 2012 by Dr. Gary Yang and Dr. Liyu Li to commercialize a new Vanadium electrolyte formulation the pair had developed while working at Pacific Northwest National Laboratory. The new formulation, a mixed-acid solution, was patented by PNNL and the patent was licensed to UET for commercialization. UniEnergy Technologies Management . Accessed 21 Jan 2016. The mixed-acid vanadium electrolyte allows for a wider temperature range for operations, and double the energy density of the traditional vanadium electrolyte.Miller, Kelsey. UniEnergy Technologies Goes from Molecules to Megawatts , Clean Tech Alliance, 7 July 2014. Accessed 21 Jan 2016.
The company had designed a megawatt-scale flow battery using this new electrolyte for the purpose of allowing rapid deployment, manufacturing repeatability and lower costs.Wesoff, Eric, St. John, Jeff. Largest Capacity Flow Battery in North America and EU is Online, Greentech Media, June 2015. Accessed 21 Jan 2016. The company also employed an R&D team which worked to make advances on the electrolyte chemistry and stack design.
Subsidiary UET had a subsidiary in Germany, Vanadis Power which provides sales and services for Europe. The company had partnerships with Bolong New Materials, a vanadium electrolyte manufacturer, and Rongke Power, the Chinese vanadium flow battery stack manufacturer.UniEnergy Technologies Background. Accessed 21 Jan 2016. In December 2015 the company completed their B round funding series which included a major investment from Orix Corp.Lerman, Rachel. Industrial battery maker UniEnergy pulls in $25M from investors, Seattle Times, 28 Dec 2015. Accessed 21 Jan 2016 In October 2021, UniEnergy filed for involuntary Chapter 11 bankruptcy, listing no assets or debts.
Products UniEnergy sold a 10kW, 34kWh fully integrated flow battery called the ReFlex. This product was sized to be a building block for commercial and utility scale deployments from kilowatts to multi-megawatt installations.UniEnergy Technologies-Products. Accessed 21 Jan 2016.
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