Asahi Kasei and EAS Batteries have entered a licensing agreement for Asahi Kasei’s acetonitrile-containing electrolyte, which will be integrated into EAS Batteries’ new ultra-high-power cylindrical lithium-ion cell based on a lithium iron phosphate (LFP) cathode. The collaboration, supported by Germany’s Federal Ministry of Research, Technology and Space under the HEADLINE project, aims to bring the UHP601300 LFP 22 cell to market by March 2026.
Asahi Kasei’s electrolyte technology delivers high ionic conductivity, reducing internal resistance and improving rate capability across a wide temperature range. This innovation builds on more than 30 years of lithium-ion research. Initial work on acetonitrile-enhanced electrolytes began in 2010, and the company demonstrated a successful proof of concept in June 2024 showcasing enhanced low-temperature power output and high-temperature durability.
The UHP601300 LFP 22 cell offers a continuous discharge power density of 2,550 W/kg (40C), roughly 60% greater than cells using conventional electrolytes, and a two-second pulse power density of 3,760 W/kg (60C), about 10% above typical benchmarks. With a capacity of 22 Ah, the cell maintains 80% of its initial capacity after 2,400 cycles at a 5C charge/discharge rate (100% depth of discharge). A full charge and discharge cycle can be completed in just 24 minutes at a 110 A current. The reduced internal resistance also lowers heat generation during cycling, enhancing overall energy efficiency.
Under the agreement, Asahi Kasei and EAS Batteries will sublicense the combined technology to global OEMs and battery manufacturers, targeting mobility applications. Michael Deutmeyer, Managing Director of EAS Batteries, highlighted that the partnership strengthens cell quality and performance by leveraging robust electrolyte technology. Osamu Matsuzaki, Senior Executive Officer at Asahi Kasei, noted that the joint effort establishes a new benchmark for high-power lithium-ion cells.
In April 2025, Asahi Kasei outlined a medium-term plan to monetize its intangible assets through licensing, aiming to secure at least 10 new agreements between fiscal 2025 and 2027 and generate significant profit contributions by 2030.
Source: Business Wire
