Two-stage lamination process

Details Two-stage lamination process Two-stage lamination process

1997-02-27

1999-06-29

Kalafut, Stephen

Metal working

Method of mechanical manufacture

Electrical device making

156312, H01M 1004

Patent

active

059165154

ABSTRACT:
Blisters or air bubbles between battery layers can be a problem with the lamination of battery layers. The blistering can be reduced by a two-step pressure-applying method. In the first step, a relatively small first pressure is applied to the battery layers. The relatively small first pressure is done such that air bubbles between the battery layers are not formed. Next, a second larger pressure is applied to the battery layers to laminate the battery layers together. In an alternate embodiment, the pressure applied to the battery layers is changed from a low pressure to laminating pressures in one step.

REFERENCES:
patent: 3180778 (1965-04-01), Rinderspacher et al.
patent: 3584758 (1971-06-01), Moore et al.
patent: 4529672 (1985-07-01), Howard et al.
patent: 4938833 (1990-07-01), Kaufman et al.
patent: 5536278 (1996-07-01), St-Amant et al.

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