CATL’s 587 Ah battery cells for energy storage systems enter large-scale commercialization

CATL’s next-generation 587 Ah cell has entered mass large-scale commercialization. The Chinese battery giant showcased the high-capacity cell product in April 2025, and it has achieved 2 GWh of shipments, according to a report published on Dec 3 by Chinese media outlet Jiemian.

The publication also reported that shipments of the cells are expected to reach the 3 GWh mark this year. CATL has a production facility based in Jining, Shandong, which supports a daily output exceeding 220,000 of these cells, according to the Jiemian report. This production facility is one of 13, with the majority located in China and one in Hungary and one in Germany. CATL’s corporate headquarters are located in Ningde, Fujian and it has six research and development centers, all located in China with the exception of one in Munich.

The latest 587 Ah cell has an energy density of up to 434 Wh/L. When it launched the cell product earlier this year, the Chinese battery maker said it would be integrated into its next-generation TENER energy storage system product series at 6.25 MWh, which was first unveiled in 2024.

The battery energy storage space is extremely competitive now, and CATL competes against fellow Chinese battery manufacturers such as Gotion, Hithium, Envision and BYD for a corner of the market.

In May 2025, CATL announced its listing on the main board of the Hong Kong Stock Exchange (HKEX), and the stock jumped on the first trading day, with current performance showing over a 50% lift in its stock price since listing. In June, the company made headlines when it initiated legal proceedings against competitor Hithium and five affiliated entities over Hithium’s application to list on the HKEX. CATL has also been involved in high-profile legal action against CALB and SVOLT and Tafel.

In recent months, competition among China’s energy storage manufacturers is at an all-time high, prompting the Chinese Ministry of Industry and Information Technology to declare at a meeting in November that it would accelerate the implementation of targeted policies and measures to curb “irrational competition” in the sector.