German battery manufacturer EAS Batteries officially commercialized its ultra-high-power lithium-ion lithium iron phosphate (LFP) cell, the UHP601300 LFP 22, following its initial launch in March 2026. The new battery cell incorporates Acetolyte™, Asahi Kasei’s innovative acetonitrile-based electrolyte technology, designed to significantly enhance battery power output, efficiency, and durability.
By leveraging Acetolyte’s high ionic conductivity, the cell achieves lower internal resistance and superior rate capability, particularly under challenging temperature conditions. As a result, the technology addresses several longstanding performance limitations associated with conventional lithium-ion batteries.
Licensing Partnership Accelerates Commercial Deployment
The commercial launch follows a licensing agreement signed in November 2025 between EAS Batteries and Asahi Kasei. Under the agreement, EAS gained rights to utilize Acetolyte™ technology in its cylindrical LFP battery cells. The successful market introduction of the UHP601300 LFP 22 represents a significant milestone in Asahi Kasei’s global licensing strategy for its advanced electrolyte platform. Moreover, it demonstrates the speed at which both companies have translated laboratory innovation into commercial battery products.
Significant Improvements in Power Density and Cycle Life
The commercialized cell offers a nominal capacity of 22 Ah while delivering exceptional power performance. Under continuous discharge conditions, the battery achieves a specific power output of 2,550 W/kg, representing a 60% increase compared with similar cells using conventional electrolytes. Furthermore, during two-second pulse discharge tests, the cell reaches a specific power of 3,760 W/kg, delivering approximately 10% higher performance.
In addition to increased power output, the battery demonstrates strong durability. At room temperature, the cell achieves a cycle life of approximately 2,400 cycles under 5C charge and discharge conditions with 100% depth of discharge (DoD), while retaining 80% of its original capacity. Samples of the battery are currently undergoing evaluation by customers across multiple industrial sectors, highlighting growing interest in high-performance energy storage solutions.
Companies Expand Collaboration into Mobility Applications
Building on the success of the current product, EAS Batteries and Asahi Kasei have agreed to sublicense their combined technologies to global original equipment manufacturers (OEMs) and battery producers. The companies are particularly targeting expansion into mobility applications, where demand for compact, high-power battery systems continues to increase.
At the same time, both partners are advancing development of next-generation battery platforms based on the 46xxx cylindrical cell format. A commercial launch is targeted for 2026, and prototype cells are already available for customer testing. The upcoming 46xxx cells are primarily intended for low-voltage electric vehicle (EV) battery systems, offering improved performance and design flexibility for future mobility solutions.
Leadership Highlights Strength of Strategic Partnership
Michael Deutmeyer, Managing Director of EAS Batteries, emphasized the success of the collaboration. “The successful commercialization of our new cell featuring Asahi Kasei’s Acetolyte™ marks another important milestone in our strategic partnership. Our collaboration on the new 46xxx cell format is also progressing smoothly, demonstrating the strength of our joint development approach and our ability to accelerate innovation from concept to market readiness,” he informed. His comments underscore the importance of close collaboration between materials innovators and battery manufacturers in bringing advanced technologies to market quickly.
Acetolyte™ Enables Next-Generation Battery Performance
Osamu Matsuzaki, Senior Executive Officer of Asahi Kasei and Head of Corporate R&D and Intellectual Property, noted that the rapid transition from licensing agreement to commercial production reflects the highly focused efforts of both organizations. “The short time from signing our license agreement in November 2025 to the start of serial production in March 2026 demonstrates the strong collaboration between EAS Batteries and Asahi Kasei. Together, we have transformed advanced electrolyte technology into a commercially viable high-power battery cell within just a few months,” Matsuzaki informed. He added that development efforts are already underway for the next-generation cell format, further strengthening the partnership’s innovation pipeline.
Acetolyte™ Addresses Key Challenges in Lithium-Ion Batteries
Acetolyte™ has been specifically engineered to overcome several critical limitations of conventional lithium-ion battery technologies. Its high ionic conductivity enables greater power output, particularly at low operating temperatures where battery performance often declines. In addition, the electrolyte improves durability and stability under elevated temperatures, helping address thermal performance challenges faced by today’s lithium-ion batteries.
Beyond performance benefits, the technology also supports cost reduction and enables the use of smaller battery packs. Consequently, manufacturers can achieve higher energy density while reducing overall system size and weight.
Supporting the Future of High-Performance Energy Storage
As demand grows for advanced battery technologies across electric mobility, industrial equipment, and energy storage applications, innovations such as Acetolyte™ are expected to play a critical role in improving power performance, efficiency, and reliability. As per the press release, the commercialization of the UHP601300 LFP 22 not only strengthens EAS Batteries’ product portfolio but also demonstrates how advanced electrolyte technologies can accelerate the development of next-generation high-power lithium-ion batteries.
