UBE attended the 24th Annual Advanced Automotive Battery Conference (AABC) on 10 – 12 December 2024.
We reported on “Polyimide Binder for Lithium-ion Battery”, which is applying water solvent, at the poster session.
We have made the material used in the poster session avalable, so please chedk it.

Why Polyimide?

Polyimide binder could resist expansion and contraction of Si-system active material by excel mechanical strength.

Polyimide is engineering plastic resin which is excellent in chemical resistance and mechanical performance.

Example of Polyimide polymerization

Electrode Making Procedure

Comparison of Battery Performance

Cycle performance of Si Negative Electrode (Water Solvent Polyimide)