On November 11, the Sichuan Provincial Department of Science and Technology released the 2022 list of major science and technology projects in Sichuan Province, including 7 projects. Among them, the project "Development of Key Materials for High Efficiency Vanadium Battery Energy Storage and System Integration Application" ranked first. The leading unit for the unveiling should be a provincial internal medicine technology-based enterprise or a consortium led by it, as well as universities and research institutions. The technical indicators required for vanadium battery projects on the list are as follows:

       In response to the current problems of low integration and energy density in vanadium battery systems, key technologies such as high-energy density electrolyte preparation, high-power density monomer stack design and assembly are studied to break through the development and integrated application technology of key materials for vanadium battery energy storage, and form a demonstration of high-energy efficiency and high integration in vanadium battery energy storage systems.

Breaking through four key technologies, the energy density of the electrolyte in the sulfuric acid system is ≥ 28 Wh/L; Single stack power ≥ 30 kW, current density ≥ 240 mA/cm2, energy efficiency ≥ 80%; Completed demonstration of high energy efficiency and high integration MW level vanadium battery energy storage application, applied for more than 10 invention patents, and achieved sales revenue (output value) of over 100 million yuan.

Time node: The R&D deadline is 3 years, and a milestone assessment will be conducted 18 months after the project is approved.

Ranking amount (fiscal budget): 8.5 million yuan, with supporting funds of 2:1 or more for the listed units.

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