CATL Announces Mass Production and Delivery of 587Ah Battery Cells with Enhanced Energy Density and Efficiency

Published: Jun 11, 2025 18:01

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CATL Officially Announces Mass Production and Delivery of 587Ah Battery Cells
CATL has officially announced the mass production and delivery of its next-generation, large-capacity energy storage system (ESS)-specific battery cells—the 587Ah battery cells. It is understood that the energy density of CATL's 587Ah battery cell reaches 434Wh/L, representing a 10% increase over the previous generation, with a 25% improvement in system energy density. Through breakthroughs in three major aspects—mechanical structure, chemical system, and pole piece design—the initial value of the round-trip efficiency (RTE) during charge and discharge cycles has reached 96.5%. Tests have shown that the failure rate caused by self-discharge in CATL's 587Ah battery cells is an order of magnitude lower than that of laminated cells.

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