On January 30, 2026, CATL's sodium-ion battery brand, NaXin, embarked on public winter testing for passenger vehicles. The first batch of test models included the Changan Oshan, with subsequent tests to be conducted on models from GAC and JAC. The primary objective of this winter testing is to assess the performance of NaXin batteries under extremely frigid conditions, focusing on key metrics such as driving range, fast-charging capabilities, stability, and safety.

Launched in April 2025, the NaXin battery stands out as the world's inaugural sodium-ion battery to achieve certification under the new national standards. It boasts exceptional adaptability across a wide temperature spectrum, ranging from minus 40°C to plus 70°C. With an energy density of 175Wh/kg, it supports 5C ultra-fast charging and offers a cycle life surpassing 10,000 cycles. In minus 20°C environments, the battery retains over 92% of its usable capacity. Remarkably, even when the battery cells freeze at minus 30°C, they can be charged immediately without the need for preheating.

By 2026, CATL aims to implement sodium-ion batteries on a large scale across four key sectors: battery swap services, passenger vehicles, commercial vehicles, and energy storage systems. This strategic move is set to create a 'sodium-lithium complementary' ecosystem, leveraging the strengths of both battery types.