By ESS news
China’s largest stationary storage cell manufacturers have accelerated the rollout of LFP sizes above 500 Ah since 2025, positioning ‘large cells’ as a short-term path to reduce system complexity and increase energy density at the container level.
CATL advertises a 587 Ah energy storage cell as part of its large-scale roadmap. The company mentions a volumetric energy density of 434 Wh/L and a lifespan of more than 10,000 cycles. CATL said it made its first deliveries in June 2025 and installed four production lines at its Jining factory in Shandong province, with a total annual capacity of 60 GWh. It also reported cumulative shipments of more than 2 GWh by December 2025.
EVE Energy pushes its limits Mr. Big 628Ah product line on the market, positioning the cells around higher integration efficiency for long-life storage systems.
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