On April 9, CATL introduced TENER, the world’s first mass-producible energy storage system that experiences zero degradation in the first five years of use, in Beijing, China. Featuring comprehensive safety measures, five-year zero degradation, and a substantial 6.25 MWh capacity, TENER is set to drive the large-scale adoption of new energy storage technologies and promote high-quality advancements in the sector.
World’s First Mass-producible 5-year Zero Degradation System
Achieving zero degradation in both capacity and power over the first five years represents a significant leap in battery longevity, which is crucial for energy storage power plants aiming to meet the demands of new electric power systems. Utilizing biomimetic SEI (solid electrolyte interphase) and self-assembled electrolyte technologies, TENER overcomes barriers to lithium ion movement, ensuring zero degradation and stable auxiliary power consumption throughout its lifecycle. This innovation results in an “ageless” energy storage system. CATL’s cutting-edge technologies and extreme manufacturing capabilities address the challenges posed by highly active lithium metals in zero-degradation batteries, effectively preventing thermal runaway caused by oxidation reactions.
Immense Energy in a Compact Space: 20-foot Container with 6.25 MWh Capacity
TENER boasts an impressive 6.25 MWh capacity within a standard TEU container, achieving a 30% increase in energy density per unit area and a 20% reduction in overall station footprint. This design enhances energy density and efficiency within limited space. CATL’s advanced cell technology underpins the system’s outstanding performance, featuring long-life, zero-degradation cells specifically designed for energy storage applications, and achieving an energy density of 430 Wh/L, a notable milestone for LFP batteries in energy storage.
Dedicated Quality Management System for Ultimate Safety
To ensure ultimate safety in energy storage, CATL has implemented a comprehensive, end-to-end quality management system encompassing technology development, proof testing, operation monitoring, and safety failure analysis. This system sets different safety goals based on various scenarios and develops corresponding safety technologies to meet these goals. To validate these technologies, CATL has created a platform to simulate safety tests of energy storage systems under different power grid conditions. Post-deployment, CATL continuously monitors operational status using AI-powered risk monitoring and intelligent early warning systems, calculates failure rates of energy storage products over their lifecycle, and verifies and optimizes safety design goals.
CATL has reduced the failure rate to the PPB (parts per billion) level for cells used in TENER. Extending this reliability throughout the product’s lifecycle effectively lowers operating costs and significantly enhances the internal rate of return (IRR).
Commitment to the Green Energy Transition
Energy storage is a pivotal element in the green energy transition, and CATL remains committed to delivering world-class energy storage solutions globally. The launch of TENER marks another milestone in CATL’s dedication to advancing the energy transition. Looking forward, CATL will continue to pursue open innovation and collaborate with global industry partners to lead in innovation and advanced technology, fostering mutual prosperity and industry leadership.
