#Germany #Munich #Sodium-ion #CATL #TENER

CATL Unveils World’s First Commercial Sodium-Ion Energy Storage System

On June 22, 2026, at an event in Munich, Germany, CATL introduced the TENER Sodium Energy Storage System, marking a significant milestone in energy storage technology. This innovative sodium-ion solution has undergone extensive real-world validation, confirming its readiness for commercialization. With the ability to meet global energy demands while enhancing safety and efficiency, this breakthrough solution is set to revolutionize the energy storage landscape.

A Game Changer in Energy Storage

The TENER Sodium system has reached full commercial maturity, showcasing robust technological capabilities, a reliable supply chain, and the readiness for large-scale production. According to CATL, cumulative deliveries are projected to hit 1 GWh by the end of 2026, with global rollouts starting in June 2027. This significant advancement underscores the company's commitment to bolstering energy independence worldwide.

William Wu, Director of CATL's Energy Storage Technology Center, stated, "Our mission is to develop a new battery composition based on abundant resources available across all continents, capable of powering eight billion people while ensuring enhanced longevity and safety." He emphasized the collaborative future of sodium and lithium as dual pillars of energy storage frameworks.

Addressing Rising Energy Needs

Amid the growing reliance on renewable energy sources and the rising demand for AI-optimized energy solutions, energy storage has transitioned from a secondary role to a critical infrastructure component in the global energy system. Traditional energy storage, predominantly dependent on lithium-based solutions, presents risks due to concentrated supply chains and price volatilities. In contrast, sodium—which is over 1,000 times more abundant than lithium—delivers superior performance under extreme temperatures, alongside enhanced safety features and cost-effectiveness.

"Success in energy storage is increasingly defined by the ability to create long-term value rather than simply scaling up production capacities," commented Amanda Xu, CTO of ESS and President of ESS Europe CATL. She conveyed CATL's philosophy that thorough preparation leads to certainty in outcomes. This principle lies at the heart of the TENER Sodium initiative.

Innovative Design for Enhanced Flexibility

The TENER Sodium system promises various advantages, including:

• - Simplified project deployment: Each module weighs about 42 tons, with only 34 units required for a 1 GWh site, streamlining overall project management.
• - Configurable storage durations: Able to support flexible storage durations of 1, 2, 4, 6, and 8 hours tailored to project specifications.
• - Cost-effective maintenance: Modules can be independently isolated and replaced, improving system availability and lowering operational costs.

CATL's dedicated sodium-ion platform ensures compatibility with other established systems while also incorporating advanced capabilities such as:
1. Bidirectional Voltage Regulation: A specialized Bi-DC voltage regulation system optimizes power output across a wide voltage range, enhancing overall efficiency.
2. Enhanced Battery Management Systems (BMS): The BMS takes advantage of sodium's unique voltage characteristics for precise state-of-charge estimations, providing an additional safety margin.
3. Low Auxiliary Energy Consumption: An innovative airflow design reduces thermal generation by 30%, significantly lowering operational energy costs.
4. Quiet Operation: Operating at only 65 decibels, TENER Sodium alleviates community noise concerns, facilitating energy station placement near major charging centers.

A Decade of Research and Development

The TENER Sodium project stems from CATL's sustained commitment to research, dating back to 2016, culminating in investments of approximately 1.2 billion euros. With a workforce of over 300 R&D specialists and an impressive patent portfolio, CATL overcame various technical challenges to engineer a state-of-the-art sodium-ion battery production process.

The scalability of sodium-ion technology is now well established, with CATL capable of producing substantial quantities of anode and cathode materials. The company aims to expand its sodium-ion battery production capacity to 200 GWh annually at its sites in Fuding and Jining.

Security for the Future Energy Network

The launch of the TENER Sodium Energy Storage System indicates the dual role of lithium and sodium in shaping next-generation energy storage infrastructures. As CATL collaborates with global partners to drive the practical deployment of sodium-ion technology, the energy storage sector stands on the brink of transformation—emphasizing stability, cost-effectiveness, and sustainability for the future of the planet's energy needs.