Rongke Energy Storage Launches RMB 520 Million Vanadium Flow Battery Production Line in Dalian

2025-03-02 21:38:05


Rongke Energy Storage Launches RMB 520 Million Vanadium Flow Battery Production Line in Dalian


Dalian, China – On February 24, Dalian Rongke New Energy Storage Technology Innovation and Industrial Incubation Platform commenced construction at Yinggeshi Science City, marking a milestone in China's long-duration energy storage sector.



Project Overview
With a total investment of RMB 800 million, this provincial-level key project will establish:


  1. Core R&D Capabilities

    • Next-gen vanadium redox flow battery (VRFB) systems (8+ hours duration)

    • Cost-effective iron-chromium flow batteries (12+ hours duration)

  2. Advanced Battery Development

    • Sodium-ion batteries with 5C fast-charging and -40°C operation

  3. Hydrogen Integration

    • Electrolyzer technologies for renewable energy coupling


Technical Milestones


  • Global Leadership: Rongke holds 216 patents covering VRFB electrolytes, bipolar plates, and stack assembly

  • Market Dominance: 3.2GWh deployed capacity (70% global VRFB market share)

  • Landmark Projects:

    • World's first 100MW VRFB system (Dalian, 2022)

    • Grid-forming hybrid storage plant with 90% round-trip efficiency


CEO Vision
Liu Yanhui, Chairman of Dalian Rongke Energy Storage Group, stated:
"Our 16-year vertical integration strategy – from vanadium electrolyte refining to megawatt-scale system control – positions Rongke as the enabler of China's 2060 carbon neutrality. The new production line will quintuple bipolar plate output, slashing VRFB costs by 30% through:


  • Automated electrolyte synthesis (99.9% purity)

  • AI-driven stack assembly (0.02mm sealing precision)"


Strategic Impact
This facility aligns with China's 14th Five-Year Plan targets:


  • 10GW new-type energy storage by 2025
  • 80% renewable integration in Northeast China grid


Rongke Energy Storage will make its debut at EPOWER 2025, unveiling cutting-edge products and integrated solutions.