According to reports, at the World Youth Scientists' Summit held on November 17th, Wu Kai, the Chief Scientist of Ningde Times, stated: Ningde Times' second-generation sodium-ion battery has been developed, capable of normal discharge in extremely cold environments down to -40 degrees Celsius, making it suitable for large-scale application in regions with extreme cold. Moreover, the second-generation sodium battery is expected to be launched into the market by 2025.

Sodium-ion batteries and lithium-ion batteries share similar working principles and structures, both consisting of positive and negative electrodes, separators, and electrolytes. They store and release electrical energy by relying on the movement of sodium ions and lithium ions between the positive and negative poles. Compared to lithium-ion batteries, sodium-ion batteries have slightly lower energy density but superior safety and低温tolerance.

July 29, 2021, Zeng Yujun, Chairman of Ningde Times, launched the company's first-generation sodium-ion battery. It boasts high energy density, fast charging, excellent thermal stability, good low-temperature performance, and high integration efficiency. The battery cell has an energy density of up to 160Wh/kg; it can reach over 80% charge in 15 minutes at room temperature; it maintains over 90% discharge retention at -20°C; the system integration efficiency reaches over 80%; and its thermal stability exceeds national safety standards.

Zeng Yuqun stated that the research and development goal for the next-generation sodium-ion battery is to achieve an energy density of over 200 Wh/kg.

CATL announced last year that sodium-ion batteries will be first implemented in Chery vehicles. The two parties have launched the battery brand "ENER-Q" and are collaborating on various battery configurations, including sodium-ion, iron-phosphate, AB, and M3P batteries.