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CATL Unveils Second-Generation Sodium-Ion Battery with Enhanced Performance, Targeting Market Release in 2025

Source：Energytrend

At the World Young Scientist Summit on November 17, CATL's Chief Scientist Wu Kai announced the completion of the company’s second-generation sodium-ion battery development. This marks another milestone in CATL's advancements in sodium-ion technology. The new battery is expected to enter the market in 2025, offering significant improvements over the first-generation model across key performance metrics.

 

Key Features of the Second-Generation Sodium-Ion Battery:

 

Higher Energy Density：Energy density exceeds 200 Wh/kg, a substantial increase from the 160 Wh/kg of the first generation.Approaches the energy density levels of mainstream lithium iron phosphate (LFP) batteries, enhancing competitiveness.

 

Superior Low-Temperature Performance：Capable of discharging efficiently in temperatures as low as -40°C, making it suitable for extreme cold regions.

 

A significant improvement from the first generation’s performance at -20°C.

 

Enhanced Safety：Generates less heat during charge-discharge cycles, reducing thermal runaway risks. Builds on the high thermal stability of the first-generation product, meeting stringent safety standards for EVs and energy storage systems.

 

Broader Applications：Suited for diverse scenarios, including electric vehicles (EVs) and large-scale energy storage systems. Provides cost-effective and high-performing solutions for renewable energy integration and electrification in extreme climates.

 

Background and Progress：CATL introduced its first-generation sodium-ion battery in July 2021, featuring high energy density, rapid charging, outstanding thermal stability, and low-temperature performance. With an energy density of 160 Wh/kg, it could charge to 80% capacity within 15 minutes at room temperature and retain over 90% discharge capacity at -20°C.

 

The second-generation model builds upon this foundation, achieving a balance of improved energy density, safety, and environmental adaptability. This innovation highlights CATL's continued leadership in battery technology, aiming to reshape the market with sustainable and efficient alternatives to lithium-based solutions.

 

Source：https://mp.weixin.qq.com/s/Y4gOLwi26NWFoszg2DZ_pA

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