Rongjie Group's Tianyi Energy announced the official mass production of the 314Ah battery cells. This battery cell sets a record for few manufacturers in the industry to achieve rapid mass production. On December 6th, the first batch of mass-produced Tianyi Energy cells was delivered globally, aiming to accurately store energy and enter the large-scale energy storage market. This energy storage battery cell uses technologies such as multi-scale graded positive electrodes, high wetting electrolyte, and pore size distribution gradient, reducing internal resistance by 15% and achieving over 8000 cycles.