China Sodium Energy Signs Agreement for 500MW Vanadium Flow Battery Manufacturing Project in Yulin, Shaanxi
Source: VRFB-Battery, 1 April 2025
China Sodium Energy announced today that its subsidiary, Dingbian Zhongna New Energy Co., Ltd., has officially signed a cooperation agreement with the Yulin Municipal Government and key industrial partners to launch its flagship “500MW Vanadium Flow Battery Manufacturing Project.” The signing took place during the 2025 Yulin–Greater Bay Area Economic Cooperation Conference held in Shenzhen on 31 March 2025.
With a total investment of ¥970 million, this project marks China Sodium Energy’s first industrial implementation of its proprietary vanadium flow battery technology in Northwest China. It is a pivotal step in advancing the company's dual-engine strategy of “Technology + Manufacturing” and promoting the large-scale application of next-generation energy storage solutions.

Key Highlights of the Project:
- Strategic Location: The project is set in Yulin, a critical hub in Shaanxi’s clean energy base, furthering the region’s move from simple power generation to a fully integrated model combining generation, storage, and consumption.
- Production Capacity: Upon completion, the facility will boast an annual output of 500MWh of vanadium flow batteries and 5,000 tons of PPH storage tanks. Production is expected to begin in December 2026.
- Advanced Manufacturing: The facility will feature 18,000 square meters of independently built high-standard workshops for core processes such as ion membrane fabrication, electrode preparation, laser welding, and battery stack assembly. An additional 5,000 square meters of government-standardized factory space will be leased for customized tank production.
Technological Advantages:
China Sodium Energy will incorporate its core proprietary technologies, including:
- Precision Environmental Controls: Full implementation of intelligent temperature and humidity systems, ensuring a ≥99.3% yield rate in critical manufacturing stages.
- Sustainable Operations: The facility will uphold world-class ESG standards, with 95% of wastewater recycled and emissions compliant with the EU Industrial Emissions Directive (IED).
Strategic and Economic Impact:
- For Yulin: The project supports the transformation of the Shaanbei energy base, enabling it to absorb and store 120 million kWh of wind and solar energy annually.
- For the Greater Bay Area: It provides scalable long-duration energy storage solutions to support peak shaving and frequency regulation, potentially reducing end-user electricity costs by 15–20%.
- For China Sodium Energy: It completes the company’s “triangle collaboration” among its R&D hub in Foshan, materials base in Yancheng, and manufacturing in Yulin—reducing project delivery timelines in western China by over 40%.