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Sunwoda Unveils Revolutionary Large-Capacity Energy Storage Cells at RE+ 25

Sunwoda Unveils Energy Storage Innovations at RE+ 25

At the prestigious RE+ 25 trade show, Sunwoda, a global leader in complete energy storage solutions, introduced two remarkable energy storage cells: the 684Ah and 588Ah models. These cutting-edge innovations aim to meet the varying demands of the global energy storage market and further establish Sunwoda's position as a frontrunner in advanced battery technologies.

Launch Details

During the event, Dr. Sam Chen, the General Manager of Sunwoda's BESS business unit, highlighted, "The launch of the 684Ah and 588Ah energy storage cells marks a significant milestone in Sunwoda's commitment to innovation and continuous advancement in high-capacity energy storage technologies." He emphasized the company's dedication to providing a mature and reliable product portfolio tailored to diverse application scenarios. This commitment aims to deliver enhanced lifecycle value and better returns on investment for customers.

684Ah Energy Cell

The 684Ah cell boasts an impressive energy density exceeding 440Wh/L, facilitated by advanced stacking technology and an innovative thermal-electrical separation aided by a unique three-dimensional heat dissipation structure. This design not only ensures safe and stable operations but also offers a lifespan exceeding 20 years, proving advantageous for various container sizes (10, 20, and 30 feet). With its high-density design, the 684Ah cell optimizes container usage by reducing it by 27%, accelerates assembly times, decreases costs, and reduces the Levelized Cost of Energy (LCOE) by 8%. Production for this groundbreaking product is set to commence in the fourth quarter of 2025 to cater to market demand effectively.

588Ah Energy Cell

In addition, the 588Ah cell employs a proven winding technology enhanced with a low lithium-loss innovation, extending its lifespan to 10,000 cycles with 70% state of health, ensuring over 20 years of reliable operation. Featuring an impressive energy efficiency of 96.5%, it provides advanced electrolyte safety and directional ventilation design, which guarantees long-term stability and profitability.

Sunwoda's Market Position

As a leader in integrated energy technology, Sunwoda ranked among the top ten global suppliers of energy storage cells in the first half of 2025 and was recognized by BloombergNEF as a level-one energy storage manufacturer. The company is actively expanding its international presence, with manufacturing facilities located in China, Thailand, and Hungary, ensuring a localized and efficient supply chain for global markets.

With the introduction of the 684Ah and 588Ah cells, Sunwoda is poised to enhance its commitment to developing high-capacity energy storage solutions, further contributing to the transition towards a more sustainable energy future.

About Sunwoda

Founded in 1997, Sunwoda Electronic Co. was listed on the Shenzhen Stock Exchange (Stock Code 300207) in 2011, and has successfully established itself on the Swiss Stock Exchange as an international foreign share certificate in 2022. With nearly three decades of dedication and innovation, Sunwoda has solidified its position as a leader in lithium-ion battery technology, emerging as a champion in the 3C battery sector, and ranking among the top ten globally in energy battery installations, energy storage cell deliveries, and energy storage system shipments, as recognized by Bloomberg. For additional information, you can visit the official site at sunwodaenergy.com.