Wednesday, May 22, 2024

World’s first 5-year zero degradation energy storage system

On April 9, CATL launched TENER, an energy storage system that can be mass-produced and has zero degradation in the first five years of use. The launch event took place in Beijing, China. TENER has a capacity of 6.25 MWh and is designed to be safe in all aspects.

CATL believes that TENER will contribute significantly to the growth and adoption of new energy storage technologies and to the overall advancement of the industry.

Preventing degradation of battery capacity in the initial five years is a major step towards increasing battery lifespan, but achieving zero degradation of power is equally important for energy storage power plants that aim to meet the requirements of new electric power systems.

TENER has made significant progress in this area by utilizing biomimetic SEI (solid electrolyte interphase) and self-assembled electrolyte technologies. This has helped overcome the barriers to the movement of lithium ions and achieve zero degradation for both power and capacity, thus ensuring zero growth of auxiliary power consumption throughout the battery’s full life cycle. As a result, they have created an “ageless” energy storage system.

Powered by cutting-edge technologies and extreme manufacturing capabilities, CATL has overcome the challenges of highly active lithium metals and developed zero-degradation batteries that effectively help prevent thermal runaway caused by oxidation reactions.

TENER achieves an impressive 6.25 MWh capacity in the TEU container, representing a 30% increase in energy density per unit area and a 20% reduction in the overall station footprint. Thus, TENER enhances energy density and efficiency through innovative design within a limited space.

CATL’s innovative cell technology is a key factor in the exceptional performance of the TENER system. The cells used in this system are designed for energy storage applications and boast a long service life with no degradation. They achieve an impressive energy density of 430 Wh/L, a significant milestone for LFP batteries used in energy storage.

To ensure the utmost safety in energy storage, CATL has established an end-to-end quality management system that covers technology development, proof testing, operation monitoring, and safety failure analysis. This system sets different safety goals according to different scenarios and develops corresponding safety technology to meet those goals. CATL has built a validation platform to simulate the safety test of energy storage systems in different power grid scenarios.

After the project is put into operation, CATL continuously monitors its operation status through AI-powered risk monitoring and intelligent early warning, calculates the failure rate of energy storage products throughout their life cycle, and thus verifies the safety design goals and continues optimizing them.

The advancements made by CATL have succeeded in reducing the failure rate to the PPB level for the cells used in TENER, which can bring down the operating costs and improve the internal rate of return. Energy storage is becoming an integral part of the green energy transition, and CATL is contributing significantly to it. They are dedicated to providing world-class energy storage solutions, and their latest launch, TENER, is another milestone in this direction.

Looking ahead, CATL will remain resolute in its pursuit of open innovation and collaborate with global industry partners to forge a path of mutual prosperity as an industry leader in innovation and advanced technology.