At the 14th Energy Storage International Summit and Exhibition (ESIE 2026), recently held in Beijing, Envision Group unveiled the world’s first 12.5MWh AI energy storage system and announced that the world’s largest-capacity 790Ah prismatic wound energy storage cell will enter mass production in Yichang this July.
This energy storage cell has a calendar life of up to 30 years and a round-trip efficiency (RTE) of 96%. It has already passed multiple high-risk tests and received certifications from major global certification bodies. The project is currently in the phase of electromechanical installation and cleanroom finishing, with production equipment scheduled to be installed this month. (Sanxia Daily: Reporter/Xiong Xiaolei, Correspondent/Rong Fei)