Electrical energy storage assembly, e.g. capacitor, production device has two units for cutting layers transversely to their direction of movement, in order to form laminate having some layers set back from other layers

摘要

The production device has a first cutting unit (270) to cut, transversely to their direction of movement, one or more single or multiple layer films (90, 40, 92) used to form a laminate (96). A second cutting unit (550) cuts the remaining films transversely to their direction of movement, such that the films cut by the first unit are at a position set back from the ends of the other films at the end of the laminate. A mandrel (610) winds the films into a multilayer roll. A driving unit (530) is used for continuous displacement of the films from their supply units. Independent claims are included for: (a) a process for production of the electrical energy storage assemblies; and (b) an energy storage assembly produced by the above process, particularly an assembly comprising a lithium battery in which layer (40) represents an anode layer located between the other layers, and set back from the ends of the other layers at the end of the laminate (96).