Constantia Flexibles: New Laminates and Cathode Foils for Lithium-Ion Batteries

Austrian packaging manufacturer Constantia Flexibles is expanding its business into materials for rechargeable lithium-ion batteries. Under the "energon" brand, the company offers pouch cell laminates and aluminium cathode foils manufactured in Europe. The market entry, announced on 6 October 2026, follows a five-year development and qualification programme.

Development and Qualification Since 2021
The development programme began in 2021 and builds on the company's expertise in aluminium processing and the production of technical laminates. The materials reached prototype quality in 2024, followed by industrial-scale production in 2025. The pouch cell laminates were tested in cooperation with European research institutions for their resistance to battery electrolytes and long-term stability. The materials also underwent qualification procedures with customers from the automotive industry.

Advert

According to Constantia Flexibles, the company is currently the only supplier outside Asia offering commercially available, appropriately qualified pouch cell laminates. The company reports that its first customers include several European manufacturers in the electric mobility sector. The materials are being adapted to specific cell designs in cooperation with these customers' development departments.

Aluminium-Polymer Laminate for Pouch Cells
The "energon P" product consists of multiple layers of aluminium and polymers. The laminate is designed to provide chemical resistance to electrolytes, protection against moisture, mechanical stability and formability during deep drawing. It is also intended to maintain the barrier properties required for pouch cells throughout the battery's service life. The laminates are designed for use on automated production lines. "energon P" is manufactured at Constantia Patz in Loipersbach, Austria.

Cathode Foil Up to 1,800 Millimetres Wide
The "energon C" aluminium foil is designed as a current collector substrate for coating with cathode active material. It is manufactured in widths of up to 1,800 millimetres and is intended to be suitable for different cell designs and production processes. The aluminium is sourced in Europe and processed at the Constantia Teich plant in Weinburg, Austria. According to the company, the site operates using electricity from renewable energy sources. Aluminium variants with a reduced carbon footprint or certification in accordance with Aluminium Stewardship Initiative (ASI) standards are also available as options.

Flexible Production and European Supply Chains
Constantia Flexibles cites the ISO 9001 and IATF 16949 quality management standards for its product portfolio. According to the company, its existing production facilities can be used for both battery materials and packaging applications, depending on demand, without requiring additional investment in manufacturing infrastructure.

Sales activities are initially focused on the automotive industry. Other potential applications include consumer electronics, aviation and stationary energy storage systems. With production based in Austria, the company aims to supply European battery manufacturers through regional supply chains. Constantia Flexibles also participates in European research and funding programmes aimed at developing local battery cell production.

Constantia Flexibles specialises in flexible packaging for the consumer goods and pharmaceutical industries. According to the company's announcement, the group employs approximately 8,500 people across 37 sites in 18 countries.

More information: www.cflex.com

Constantia Flexibles GmbH, Vienna, Austria

back to news list