On March 17, 2025, CATL and NIO signed a strategic partnership in Ningde, Fujian. Together, the two parties aim to build the world's largest battery swapping network and promote the standardization of industry technologies,leading the new energy vehicle industry towards a new stage of high-quality development.

Under the agreement, both parties, riding on the transformation and upgrade trends in the global automotive industry, will collaborate to create the largest and most advanced battery swapping service network for passenger vehicles, leveraging their respective strengths in technology, management, platforms, and brand influence. Building on unified battery standards, the two parties will strengthen the sharing of their battery swapping networks, and accelerate the adoption and advancement of battery swapping services. CATL will support NIO in developing the battery swapping network, while its Choco-Swap technical standards and network will be introduced to the subsequent newly developed models of firefly, NIO's new brand. The networks of both parties will operate in parallel, offering EV users a more seamless and efficient swapping experience, thus making BEV travel more convenient.

In the future, both parties will jointly drive the formulation and adoption of national standards for battery swapping technology in China, further enhancing battery compatibility across various brands and models. Together, they will establish a complete lifecycle loop that encompasses battery R&D, swapping services, asset management, reutilization, and material recycling, helping reduce costs and improve efficiency across the entire value chain of new energy vehicles while ensuring safety.