Sunwoda has unveiled two groundbreaking large-capacity energy storage cells, the 684Ah and 588Ah models, at the now concluded RE+ 2025 in Las Vegas, further strengthening the company’s position as a leader in advanced battery technologies.
Dr. Sam Chen, GM of the company’s BESS BU, commented: “The launch of the 684Ah and 588Ah energy storage cells marks a significant milestone in Sunwoda’s ongoing innovation and advancement of large-capacity energy storage technologies. The company is committed to building a mature and reliable product portfolio that addresses diverse application scenarios, delivering greater lifecycle value and investment returns for our customers.”
Engineered with advanced stacking technology,the 684Ah cell achieves energy density above 440Wh/L and integrates thermal-electric separation with a three-dimensional heat dissipation structure to guarantee safe, stable operation. Built for longevity with 20+ years of service life, it integrates flexibly with 10ft, 20ft and 30ft containers. Its high-density design reduces container use by 27%, shortens assembly time, lowers costs and cuts LCOE by 8%, enhancing deployment speed and overall economics.
Sunwoda announced during RE+ that the product had just entered mass production in China.
The 588Ah cellapplies proven winding technology enhanced with low-lithium-loss innovation, extending cycle life to 10,000 cycles at 70% SOH and enabling more than 20 years of reliable operation. With 96.5% energy efficiency, advanced electrolyte safety and a directional venting design, it ensures long-term stability and cost-effectiveness.
As a global leader in integrated new energy technologies, Sunwoda continues to expand its international manufacturing footprint, with production bases in China, Thailand and Hungary ensuring localized, efficient and reliable supply chain support for markets worldwide.
