EAS Batteries Launches High-Power Lithium-Ion LFP Battery Cells Featuring Asahi Kasei's 'Acetolyte™' Electrolyte Technology

Asahi Kasei Corporation (Headquarters: Chiyoda-ku, Tokyo; President: Koshiro Kudo) announced that EAS Batteries (Headquarters: Thuringia, Germany), a German battery manufacturer, has launched high-power lithium-ion LFP battery cells incorporating Asahi Kasei's proprietary super-ionic conductive electrolyte technology, 'Acetolyte™'.

The electrolyte utilizing this technology contains acetonitrile and possesses high ionic conductivity, which reduces the battery's internal resistance and enhances output characteristics. It is particularly effective under harsh temperature conditions. The two companies signed a license agreement for the use of this technology in November 2025, and the launch of these cells marks a significant milestone in the Acetolyte™ licensing strategy.

Furthermore, EAS Batteries is pursuing sub-licensing agreements for this technology with other battery manufacturers and automotive OEMs, while also evaluating its application for next-generation 46xxx cells. The 46xxx cell is a large cylindrical lithium-ion battery with a 46 mm diameter. Development is underway with the goal of commercialization in 2026, and prototype cells are already available. These cells are expected to be used in a wide range of fields, including electric vehicles (EVs) and other mobility applications.

This cell is a cylindrical lithium-ion LFP (lithium iron phosphate) battery with a nominal capacity of 22Ah. It achieves an output of 2,550 W/kg during continuous discharge, representing an approximately 60% improvement over cells using conventional electrolytes. In 2-second pulse discharge, it shows a maximum output of 3,760 W/kg, a 10% improvement over conventional models. Additionally, the cell maintains 80% of its initial capacity after 2,400 charge/discharge cycles under demanding 5C/5C, 100% DoD conditions at room temperature. Evaluation by customers in various industrial sectors is currently underway.