CATL’s Jining base in Shandong has achieved daily output of more than 220,000 units of the 587Ah cell, with each cell produced in under two seconds.
CATL’s large-capacity 587Ah energy-storage cell has recently surpassed 2 GWh in shipments, becoming one of the first models in the industry to reach GWh-level delivery.
Based on this year’s production pace, annual shipments of the 587Ah cell are expected to reach 3 GWh, signifying that this generation of products has entered genuine large-scale deployment.
The 587Ah cell represents the latest iteration of CATL’s energy-storage portfolio. Over the past few years, the company has launched cell formats such as 280Ah and 314Ah, steadily increasing standardization across its storage product line.
As CATL’s fastest-advancing generation, the 587Ah cell underwent three years of R&D and validation.
It achieves an initial energy-conversion efficiency of 96.5%, while balancing cycle life and cost advantages, offering a lower levelized cost of storage for utility-scale projects.
In June, CATL officially announced mass production and delivery of the 587Ah cell at its “2025 Energy Storage 587 Technology Day.”
Leveraging its proprietary super-drawing process, CATL’s Jining base in Shandong has achieved daily output of more than 220,000 units, with each cell taking less than two seconds to roll off the line.
With the application of new manufacturing processes, production costs have fallen 42% from the previous generation, while safety failure rates have been contained at the PPB level (one in a billion).
Under CATL’s disclosed plan, the Jining facility’s incremental energy-storage capacity will exceed 100 GWh in 2026.
As capacity scales, CATL continues to lead the global energy-storage battery market. The company held a 36.5% share in global storage deployments in 2024 and ranked No. 1 in storage battery shipments for the fourth consecutive year.
As of September this year, CATL’s storage products have been deployed across more than 2,000 projects worldwide, spanning grid-connected systems, commercial-industrial storage and large-scale renewable-energy integration.
According to the company’s Hong Kong financial disclosures, CATL generated revenue of RMB 283 billion ($39.62 billion) in the first three quarters of 2025, with net profit of RMB 49.034 billion ($6.86 billion).
Energy-storage cell revenue accounted for 25% of total revenue, rising more than 60% year-on-year.
In the first three quarters, CATL shipped a cumulative 90 GWh of energy-storage cells, representing a 24.2% global market share—three percentage points higher than a year earlier.
Notably, mass production of the 587Ah large-format cell accounted for more than 30% of CATL’s storage shipments, lifting unit profitability to RMB 0.09/Wh ($0.013/Wh), up 17% quarter-on-quarter, and pushing the storage business’s gross margin to 25%, on par with power-battery margins.
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