By ESS News
China’s Sunwoda unveiled its 684 AH large format battery cell on the recently held Eesa Energy Storage exhibition in Shanghai, in which he presented what the company described as a stage-gate milestone in his internal cell, package and systems options.
The cell is designed for applications in the field of utility scale and grid, with small batch tests planned for Q4 2025. Mass production is planned to start in Q1 2026, aimed at an initial annual capacity of 10 GWH.
Technical characteristics described by Sunwoda emphasize high capacity of one cell and integration at system level. The 684 AH cell uses AI-Intended Stapel and a three-dimensional thermal management structure and is compatible with 2,000V high-voltage platforms.
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