Battery Cell Lamination

Laminating the layers of a battery cell asks for the same things as any demanding lamination process, only with tighter margins: stable pressure, controlled temperature and exact alignment. As a leading builder of industrial laminating machines, Crest brings more than four decades of lamination engineering to manufacturers and development teams working on battery cells.

Why lamination matters in a battery cell

In a stacked cell, electrodes and separator have to stay precisely aligned. Laminating the layers fixes them in position before stacking. That makes the stack more stable and easier to handle, and reduces the risk of misalignment. A precise, repeatable cell structure is the basis for consistent cell performance.

Pressure, temperature and alignment

Three parameters decide the quality of a laminated cell. Too little pressure and the layers do not bond; too much and the separator can be damaged. Temperature has to be even across the full width, and web tension has to stay constant so the layers do not shift. These are the parameters our engineers work with every day in industrial lamination.

Every project starts with your process

Battery cell production has its own materials and requirements. That is why we start from your materials, your cell format and your targets, and work out with you what a laminating machine needs to do. Engineering, production and service are all in-house in Raalte, the Netherlands, so you work directly with the people who design and build the machine.

Working on a battery cell project? Tell us about your materials and process. We are happy to think along at an early stage.

Need advice? We’re here to help

Frequently Asked Questions

What is battery cell lamination?

Battery cell lamination bonds the layers of a cell, such as electrodes and separator, under controlled pressure and temperature. The laminated layers stay aligned during stacking, which makes the cell structure more precise and more stable.

Why does lamination pressure matter in battery cells?

Pressure decides whether the layers bond without being damaged. Too little pressure gives a weak bond, too much can damage the separator. Stable, repeatable pressure, temperature and alignment give consistent cells and less scrap.

Can Crest build a laminating machine for battery cells?

Crest designs and builds custom laminating machines around a specific process. For a battery application we start with your materials, cell format and volume, and assess together what the machine has to do. Contact us to discuss your project.