CATL Inks Deal For 60 GWh Of Sodium Energy Storage Batteries Over Next Three Years

CATL has entered into a landmark agreement with Chinese energy storage firm HyperStrong to supply 60 GWh of sodium-ion batteries over the next three years. This deal marks a significant milestone in the commercialisation and large-scale deployment of sodium-ion technology for energy storage, reflecting a deepening strategic partnership between the two companies. The collaboration aims to accelerate the development and application of sodium-ion batteries, which offer a promising alternative to lithium-ion systems, particularly in long-duration energy storage. Sodium-ion batteries present several advantages, including a wider operating temperature range, improved thermal management, and enhanced safety compared to lithium-ion counterparts. CATL’s latest sodium-ion cells deliver an energy density of around 160 Wh/kg and can endure over 15,000 charge cycles while maintaining 80 percent capacity. These batteries also operate efficiently between -40°C and 70°C, making them suitable for diverse environments. Importantly, CATL has resolved key manufacturing challenges such as foaming and moisture sensitivity, enabling mass production and large-scale delivery. The new sodium-ion systems are designed to be compatible in size with existing lithium-ion battery infrastructure, facilitating easier integration and reducing installation costs. This compatibility, combined with sodium-ion’s lower raw material costs and safer chemical profile, positions the technology as a viable alternative for grid-scale energy storage, especially in remote or temperature-extreme locations. While lithium-ion batteries still hold advantages in energy density and cost, sodium-ion’s benefits in safety, thermal stability, and cycle life could drive broader adoption as the technology matures. Industry observers have described the agreement as a turning point for battery energy storage systems (BESS), signalling that sodium-ion technology is moving beyond niche applications into mainstream deployment. The scale of this contract surpasses previous orders and highlights China’s leading role in advancing sodium-ion battery production. As HyperStrong expands its global footprint, this partnership may influence international markets and accelerate the global energy transition by providing more resilient and diversified storage solutions.