Breakthrough: World’s First Five-Year Stationary Battery with Zero Degradation

CATL, a leading battery manufacturer in China, has made a groundbreaking achievement by launching the world's first mass-producible energy storage system with zero degradation in the first five years of use. This remarkable feat is made possible through the innovative TENER containerised 6.25 MWh stationary storage battery system, which utilizes CATL's lithium iron phosphate (LFP) cells.

One of the key highlights of this new energy storage system is its ability to prevent degradation of both capacity and power over the initial five-year period. This advancement is crucial for energy storage power plants seeking to meet the evolving requirements of modern electric power systems. The battery cells incorporate CATL's biomimetic SEI (solid electrolyte interphase) and self-assembled electrolyte technologies, which effectively eliminate the obstacles hindering the movement of lithium ions over time, ensuring zero degradation throughout the full life cycle.

With an impressive 6.25 MWh capacity housed in a TEU container, the TENER system represents a significant leap in energy density, boasting a 30% increase per unit area and a 20% reduction in the overall station footprint. This enhanced energy density of 430Wh/l makes it ideal for applications with limited space, offering a more efficient and compact solution for energy storage needs.

To ensure the reliability and safety of the TENER system, CATL has implemented a comprehensive quality management system that covers all aspects of technology development, proof testing, operation monitoring, and safety failure analysis. Additionally, the company has established a validation platform to simulate various power grid scenarios and conduct safety tests for energy storage systems.

Following the deployment of the TENER system, CATL employs advanced AI-powered risk monitoring and intelligent early warning systems to continuously track its operational status. By calculating the failure rate of energy storage products throughout their life cycle, CATL can validate the safety design objectives and further optimize the system for enhanced performance and longevity.