- Borealis introduces a three-layer cast polypropylene for lithium-ion battery pouch cells.
- The concept supports local sourcing and aligns with EU battery initiatives.
- The solution is entering validation with an independent battery testing institute.
- First pouch cell with this concept to be showcased at K Fair 2025.
Introduction
Borealis has developed a new three-layer cast polypropylene (cPP) concept for polymer-aluminum laminates used in lithium-ion battery (LIB) pouch cells. This innovation addresses the increasing demand for high-performance materials in the battery sector.
Key Features
The cPP polymer-laminate structure offers efficiency through excellent deep-drawing behavior, safety with hermetic seals and high seal strength, and durability via robust bonding and adhesion. These features are crucial for meeting the complex requirements of LIB pouch films.
Strategic Importance
As battery production expands regionally, local material sourcing becomes a strategic advantage. This development supports decarbonization and strategic autonomy, aligning with EU initiatives like the Battery Booster package and Horizon Europe, which aim to accelerate battery manufacturing and secure raw materials.
Collaboration and Testing
The project highlights collaboration between Borealis and partners such as film producers, laminators, and battery technology advisors. Following successful internal testing and customer trials, the solution is now undergoing validation with an independent battery testing institute.
Future Outlook
The first pouch cell using this cPP concept will be showcased at K Fair 2025, demonstrating the potential of collaboration in advancing battery materials technology.
