Asahi Kasei achieves proof of concept for LiB using its innovative electrolyte

Japanese technology major, Asahi Kasei on Monday (June 10) announced it has achieved proof of concept (POC) of lithium-ion batteries using its proprietary high ionic conductive electrolyte.

This innovative electrolyte marks a technological breakthrough as it enables increased power output even at low temperatures, and improved durability at high temperatures – both urgent issues for current LiBs. The breakthrough will support stable battery performance and high durability at extreme temperatures required in energy storage systems and electric vehicles.

"This proof of concept is a technological breakthrough. By licensing the electrolyte technology to LIB manufacturers worldwide, Asahi Kasei aims to contribute to lower cost and more compact battery systems, which are a key driver to achieve a more sustainable society," said Kazuya Noda, Senior General Manager of Asahi Kasei's Innovation Strategy Center.

According to Asahi Kasei, compared to cells made with conventional electrolytes, the tested prototype cylindrical cells showed high power at −40°C and doubled the cycle life at 60°C before reaching a state of health (SOH) of 80 percent.

Asahi Kasei has been leading R&D and innovation in lithium-ion batteries and battery material manufacturing for decades. It began developing an electrolyte with high ionic conductivity in 2010 when Honorary Fellow Akira Yoshino focused on acetonitrile as a promising ingredient in Li-ion battery electrolytes. Results showed, that by using the high ionic conductive electrolyte, it is possible to reduce battery pack size while maintaining the power output, contributing to higher battery energy density and lower overall pack cost.

Asahi Kasei has planned the commercialization of its high ionic conductive electrolyte by 2025.