CATL and NIO have signed a strategic cooperation agreement to establish the world’s largest battery swap network, aiming to drive industry standardization. The agreement was finalized on March 17 in Ningde, Fujian, as announced by CATL on its WeChat account.
Both companies will combine their technological expertise, management capabilities, platform resources, and brand influence to develop an advanced, large-scale battery swap service network for passenger vehicles. This initiative aligns with global automotive industry trends and supports China’s new energy vehicle (NEV) development strategy.

A core aspect of the partnership is the standardization of battery swap technology. CATL and NIO will collaborate to enhance network sharing and improve battery-swapping services, making them more efficient and widely accessible. CATL will provide support for NIO’s battery swap network expansion, while NIO’s FIREFLY sub-brand will integrate CATL’s Choco-Swap standard into its future models.
The two companies will adopt a dual-network business model, offering seamless battery-swapping services to enhance electric vehicle convenience. Additionally, they plan to contribute to the development and promotion of national battery swap standards, ensuring compatibility across different brands and vehicle models.
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