#China #Energy Storage #Chongqing #Hithium #kAh Battery

Hithium's Groundbreaking Advancement in Energy Storage

On June 11, 2025, elevated amidst the buzzing atmosphere of SNEC 2025, Hithium, a prominent global player in energy storage technology, launched the mass production of the world's first kAh battery cell—the ∞Cell 1 175Ah. This significant achievement not only underscores Hithium's commitment to innovation but also sets a new standard for long-duration energy storage deployment, marking a pivotal moment in the industry.

Overcoming Technical Challenges

Hithium foresaw the emerging demand for long-duration energy storage and began investing in research and development as well as manufacturing of kAh battery cells back in 2022. The journey was not without hurdles, as the company faced unprecedented challenges regarding scale, process complexity, and quality control. However, through relentless dedication, Hithium made five groundbreaking innovations at its Chongqing production base:

1. Enhanced Precision in Coating: The first innovation involves achieving a coating density of less than 0.2% through advanced thick-coating techniques, monitored by high-precision CCD cameras. This innovation ensures consistent and stable product quality, a critical factor in battery manufacturing.

2. Improved Electrode Stacking Efficiency: By achieving a precise alignment of 0.5mm and speeding up the stacking process to just 0.1625 seconds per sheet, Hithium increased the stacking efficiency by 35% compared to traditional methods, significantly enhancing production capacity.

3. Innovative Cell Structure Design: The introduction of a proprietary three-dimensional air-flow integrated top cover structure not only facilitates stability during manufacturing but also boosts the structural integrity of large components, effectively eliminating industry bottlenecks.

4. Downstream Production Efficiency: Through high-efficiency baking processes and high-pressure isostatic electrolyte filling, downstream production efficiency saw an impressive 45% increase, reflecting Hithium's commitment to pushing production boundaries.

5. Cell Packaging Consistency: The implementation of compatible flexible lamination rollers resolves issues like creases and bubbles, which have long hindered the packaging of ultra-wide cells.

Setting New Safety Standards

As energy density continues to rise with larger capacity designs, product safety remains paramount. Hithium's product safety expert, Xiaoxiao Liu, highlighted that the company has developed a multi-layered safety architecture encompassing cell, module, and system levels. This architecture ensures that the entire lifecycle of high-capacity energy storage systems is safely managed. Key features include:

• - Advanced Battery Management System (BMS): Incorporating both functional safety and cybersecurity measures through multimodal early warning algorithms.
• - Innovative Thermal Protection Structures: These dual-mode systems curtail heat propagation and oxygen intrusion, crucial for maintaining cell integrity under duress.
• - Layered Fire-Resistant Materials: Strengthened internal frames and intelligent fire detection systems work collaboratively to preempt thermal runaway incidents.

Accelerating Global Expansion with Authoritative Certifications

During the SNEC 2025 event, Hithium's ∞Cell 1 175Ah received UL 1973 and UL 9540A certifications from UL Solutions, a globally recognized safety authority, validating that Hithium’s innovations meet international safety standards. These certifications provide a solid foundation for the cell’s entry into the North American market.

In addition to this, Hithium signed a strategic cooperation agreement with El Mor, a leading EPC company in Israel, to initiate its first long-duration energy storage project in Romania, thereby accelerating developments in the local market.

The successful mass production of the world’s first kAh battery cell demonstrates Hithium's capability to navigate and overcome industry bottlenecks in both research and manufacturing spheres. As the world transitions into a long-duration energy storage era, the ∞Cell 1 175Ah promises to be a benchmark in the market, with Hithium ranking among the top three companies in global energy storage solutions. Hithium continues to establish itself as a market leader, driven by a commitment to innovation and value creation.