Recently, the R&D team of Huantai Energy Storage has made significant progress in key core technology fields. Under the conditions of room temperature (25℃) and a sulfuric acid electrolyte system (vanadium molar concentration: 1.65-1.75 mol/L), it has successfully developed a research-grade battery cell with an operating current density exceeding 500 mA/cm². The cell features an active area of 50 cm² and an energy efficiency of ≥80%. This indicator has set a new known industry record, providing an effective solution for the development of high-power density flow batteries.
This breakthrough stems from the collaborative innovation of core technologies. An ultra-efficient catalytic electrode using self-developed carbon cloth significantly enhances electrochemical reaction efficiency; an ion exchange membrane with both excellent proton conductivity and long-term operational stability ensures the battery’s high efficiency and durability; innovative stack structure design, application of flow channel bipolar plates, and precise compression ratio control technology realize the uniform distribution of reactants and current, effectively improving overall performance.
This achievement is not only an important tool for cutting-edge research on flow batteries but also forward-lookingly incorporated industrialization needs at the initial design stage. The technical route simultaneously considers the feasibility of scale-up experiments and the potential for engineering implementation, laying an industrialization foundation for the development of next-generation high-power density stacks.
As a “National High-Tech Enterprise”, Huantai Energy Storage continues to accelerate key material technology research and the iterative upgrading of stacks and systems through in-depth integration of industry, academia, and research. This technological breakthrough is a vivid manifestation of the enterprise’s practice of its core philosophy: “driving industrial upgrading through technological innovation and promoting sustainable green and low-carbon development”.
