Kureha's KF Polymer was selected as the binder when lithium-ion batteries were first commercialized globally in 1991. Since then, it has been the longest-used binder in the world, adopted in numerous lithium-ion batteries.

KF Polymer is characterized by its superior adhesive strength, chemical resistance, and excellent electrochemical stability compared to other commercially available binders. It has been employed in lithium-ion batteries for a wide range of applications, including consumer electronics, automotive, industrial, and energy storage system.

By using KF Polymer as a binder for lithium-ion batteries, it is possible to achieve both high active material concentration and prevention of electrode delamination, even with a reduced binder content.

The Central Research Center is located within Kureha's Iwaki Factory premises. As the core of Kureha's research and development division, it is where many of Kureha's products, including KF Polymer, are developed.

Leveraging the advantage of being situated on the same site as the actual production plant, the center conducts research and development in close collaboration with the production team.

To comprehensively address the technical needs of our customers in China, we established an R&D Center within Kureha (Changshu) Fluorine Materials Co., Ltd., our production base in China. The center is equipped with advanced facilities, including dry rooms and clean rooms similar to those found in battery factories, enabling material evaluation, as well as the production and assessment of lithium battery slurry, electrodes, and batteries.
R&D Center also conducts joint research with Chinese battery manufacturers, playing a significant role as Kureha's technical hub for the Chinese market.