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Hithium Revolutionizes Energy Storage with First kAh Battery Cell Production

On June 11, 2025, during the SNEC 2025 event, Hithium, a leading player in the global energy storage technology sector, unveiled an impressive advancement in the field. Their product safety technology sharing event, themed "Leading the Future, Forged for Safety," showcased the successful mass production of the world’s first kAh battery cell, known as the ∞Cell 1175Ah. This milestone signals the commencement of a transformative era in the long-duration energy storage domain, paving the way for widespread adoption.

Overcoming Key Technical Challenges to Mass Production

Hithium recognized the impending demands of the long-duration energy storage market as early as 2022 and made significant investments in both research and development as well as manufacturing processes. The journey to mass production was fraught with challenges, including size constraints, process complexities, and stringent quality control needs. Hithium has successfully navigated these obstacles through five innovative breakthroughs across its manufacturing chain.

1. Precision in Coating: Hithium achieved a remarkable coating mass density with a COV of less than 0.2%. Utilizing high-precision CCD cameras for online inspections ensured that the product quality remained consistently stable throughout production.

2. Electrode Stacking Efficiency: The company improved alignment accuracy to 0.5mm, significantly enhancing stacking throughput by 35% when compared to conventional production methods.

3. Innovative Cell Design: With a proprietary "integrated 3D airflow top cover," Hithium has ensured that larger components possess the necessary structural strength, facilitating production while overcoming traditional industry bottlenecks.

4. Back-End Manufacturing Efficiency: The introduction of high-efficiency processes, such as high-pressure isostatic electrolyte filling and enhanced formation processes, led to a 45% uptick in the efficiency of back-end manufacturing.

5. Improved Packaging Consistency: A flexible lamination roller system was designed to address common issues like wrinkling and bubbling found in ultra-large battery cell packaging.

Establishing New Safety Standards

As energy density increases in larger capacity designs, safety becomes paramount. Dr. Xiaoxiao Liu, a leading safety expert at Hithium, emphasized the company’s commitment to implementing a comprehensive safety architecture at all levels of production, from the battery cell to the overall energy storage system.

• - At the cell level, Hithium employs advanced electrolyte formulations to enhance thermal resistance and prolong the cycle life of the batteries.
• - The pack level features dual-mode thermal protection structures designed to prevent thermal propagation.
• - The battery management system incorporates multimodal algorithms to provide early warnings and redundant controls, ensuring stable and secure operation.
• - Further safety measures include multi-layer fire-resistant materials, reinforced frames, and intelligent fire detection and suppression systems to maintain structural integrity.

Accelerating Global Expansion with Authoritative Certifications

At the SNEC 2025 event, Hithium announced that its ∞Cell 1175Ah has received crucial certifications, including UL 1973 and UL 9540A from UL Solutions, a recognized safety authority. These certifications affirm that the new battery cell meets rigorous global safety standards, thereby establishing a solid foundation for its introduction into the North American market.

In addition, Hithium has entered a strategic partnership with El Mor, a prominent EPC firm in Israel, to initiate its first long-duration energy storage project in Romania, thus further bolstering the local energy storage landscape.

Conclusion

The mass production of the world’s first kAh battery cell is a testament to Hithium’s capacity for innovation and its ability to address industry challenges effectively. As the world progresses into the era of long-duration energy storage, the ∞Cell 1175Ah stands ready to serve as a benchmark in the market, reinforcing Hithium’s position as one of the top three companies in global energy storage battery shipments. As they continue leading the charge in this sector, Hithium’s innovative solutions are set to transform energy storage capabilities worldwide.