Abstract: A coiled cell lithium-ion battery is provided with a plastic element, at least on the part of the end face of the cell coil on which the collector projects, to partially or completely embed the collector.

Abstract: An electrode for electrical power accumulators, in particular lithium-ion batteries, has a structured surface. In one embodiment, the cathode electrode is implemented as structured, this structuring occurring at the same time as the production in a laminator. Capillaries are produced. Upon filling of the cell, these capillaries conduct the electrolytes, because of their capillary action, into the middle of the coiled cathode electrode, i.e., into the middle of the cell. It is thus possible to fill the lithium-ion cell in a single step.

Abstract: According to the invention, a method for the production of battery electrodes and battery electrodes produced with this method are provided, whereby the method comprises the production of compositions of the electrode materials for cathode or anode material and, if required, a separator material, and the extrusion of the electrode material to form the anode or cathode from the electrode material, and is characterized in that the electrode material comprises isocyanate and an aqueous dispersion of a polymer binder which react with one another to form porous structures. By means of the method according to the invention, extremely elastic and, at the same time, mechanically stable battery electrodes are generated that may be utilized in lithium secondary batteries.