In September 2025, CATL made an announcement on its interactive platform. The company revealed that its sodium - ion power battery, specifically designed for new passenger cars and unveiled in April, had successfully cleared the new national standard certification titled "Safety Requirements for Power Batteries for Electric Vehicles" (GB38031 - 2025). This achievement makes it the first sodium - ion battery in the world to pass such a certification. This sodium - ion battery boasts remarkable energy retention capabilities in low - temperature conditions. Even at a frigid - 40℃, it can still retain up to 90% of its cell energy. Moreover, it showcases exceptional safety performance. It has withstood extreme tests, including drill penetration and crushing tests, which are stringent measures to assess a battery's resilience. At present, the development and implementation of this battery are proceeding seamlessly. CATL is working hand - in - hand with its customers to bring this innovative product to the market.