EAS Batteries commercializes LFP cell using Asahi Kasei’s acetonitrile electrolyte Acetolyte

German battery manufacturer EAS Batteries has launched the UHP-601300-LFP-22, a large-format cylindrical lithium iron phosphate (LFP) cell that incorporates Asahi Kasei’s acetonitrile-based Acetolyte electrolyte. This innovative electrolyte significantly enhances the cell’s continuous discharge power to 2,550 W/kg at 880 A (40 C), marking a 60% increase compared to the conventional electrolyte’s 1,550 W/kg at 550 A (25 C). The improvement is attributed to Acetolyte’s higher ionic conductivity, which lowers internal resistance and enables sustained high current output without thermal drawbacks. The performance gains are particularly notable under challenging temperature conditions, where traditional carbonate electrolytes typically suffer from reduced conductivity. Under a brief 2-second pulse, the specific power peaks at 3,760 W/kg at 1,320 A (60 C), outperforming the conventional electrolyte version by approximately 10%. EAS Batteries reports a robust cycle life of 2,400 cycles at 5 C charge and discharge rates, maintaining 80% of the initial capacity at full depth of discharge and room temperature, underscoring the cell’s durability for demanding applications. EAS Batteries and Asahi Kasei have entered a licensing agreement to commercialise and sublicense their combined technology to global original equipment manufacturers (OEMs) and battery producers, focusing on mobility sectors. They are also developing a larger 46xxx cylindrical cell format utilising Acetolyte, aimed primarily at low-voltage electric vehicle batteries, with prototypes already available for customer evaluation. Serial production of the UHP-601300-LFP-22 began in March 2026, just months after the licensing deal was signed in November 2025, reflecting rapid development and collaboration between the two companies. Osamu Matsuzaki, Senior Executive Officer at Asahi Kasei, highlighted the swift transition from agreement to production as a testament to the strong partnership between the firms. EAS Batteries, based in Nordhausen, Germany, brings over three decades of experience manufacturing cylindrical cells for aerospace, automotive, and industrial markets. The introduction of this advanced LFP cell with Acetolyte electrolyte represents a significant step forward in high-performance, thermally resilient battery technology for electric mobility and other demanding applications.