Laminators bond a free-standing electrode film to a current collector — turning a fragile self-supporting sheet into a handle-able, low-resistance composite ready for stacking, winding, or membrane-electrode-assembly. The presses in this collection sit at the lamination step of a dry-electrode pilot line, after the electrode film has been calendered to its target thickness and before single-sided or double-sided sheets are die-cut into pouch or cylindrical formats.
Lamination is fundamentally different from densification. The goal is not to compress an electrode further; it is to fuse two surfaces — typically a PTFE-bound dry electrode film against a primer-coated aluminum or copper foil — using heat just above the binder's softening point and a controlled nip pressure. Steel-on-steel calenders deliver the high line load needed for densification but are unforgiving on thickness variation; soft-nip rubber rollers conform to small thickness gradients and protect delicate layers such as ion-exchange membranes or coated separators.
The two formats covered here serve different scales of work:
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Roll-to-roll hot rolling presses — heated steel rollers fed from an unwind/rewind pair, suited to continuous lamination of dry-electrode webs onto pre-primed foil. Use these when you are validating a continuous process, characterizing peel strength along a web, or producing meter-scale samples for full-cell builds.
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Hot rolling presses with rubber rollers — soft-nip laminators where one or both rollers carry an elastomer sleeve. The conformable nip is essential when bonding a thin membrane to a porous electrode, when the two layers have mismatched surface textures, or when even pressure distribution matters more than raw line load.
Both formats are temperature-controlled so the binder reaches its glass-transition window without degrading the active material, and both are pressure-set rather than gap-set so the nip adapts as material thickness varies along the web.
If you are integrating a dry-electrode film onto a current collector for lithium-ion or sodium-ion pilot work, start with the roll-to-roll hot rolling press. If you are laminating a catalyst-coated electrode to an ion-exchange membrane for a fuel-cell, electrolyzer, or AEM stack, the soft-nip rubber-roller press is the better fit. For upstream densification, see Calenders & Rolling Presses; for the broader process, see Dry Electrode Fabrication.
