/PRNewswire/ — On April 27, CATL and HyperStrong signed a strategic cooperation agreement on sodium-ion batteries for energy storage in Ningde, Fujian. The two parties announced a three-year partnership covering the supply of 60 GWh of sodium-ion batteries, marking an important milestone for the industrialization of sodium-ion battery technology.
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As CATL’s first strategic partner in sodium-ion energy storage, HyperStrong will work closely with CATL in areas such as technology research and development, product applications and project implementation.
This partnership marks the breakthrough of CATL across the entire value chain for mass production of sodium-ion batterieswhich gives the company the capacity to ensure large-scale deliveries. It is also the world’s largest sodium-ion battery supply agreement to date, ushering in a new phase of large-scale expansion for the global sodium-ion battery industry.
Through morphology control and surface modification, CATL has significantly improved the energy density of sodium-ion batteries. In manufacturing, the company has systematically addressed key challenges in mass production processes – such as foaming in hard carbon production lines and humidity control – by leveraging key technologies including angstrom-scale pore size control, molecular surface water trapping and adaptive dynamic forming, ensuring consistent quality throughout large-scale production.
Sodium-ion batteries offer excellent adaptability across a wide temperature range, exceptional life at high temperatures, generate less heat during operation and experience less stress from cell expansion, resulting in superior safety and stability. In long-duration energy storage applications, system integration can be effectively simplified, thereby reducing auxiliary energy losses and overall improving the efficiency and economic performance of the installation.
In addition, CATL’s sodium-ion energy storage batteries feature a platform-based design with the same form factor as lithium-ion batteries, which ensures high compatibility with the current industrial chain. This effectively reduces adaptation costs and significantly shortens the time between product preparation and power plant deployment.
The 60 GWh sodium-ion battery cooperation marks an important milestone for both parties. As sodium-ion technology enters a large-scale development stage, the two parties will continue to deepen collaboration, promote high-quality growth of the energy storage industry, and provide more resilient and diversified technological support for the international energy transition.
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