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: Separators for lithium-polymer batteries and methods for their production are described. One separator has the capability of preventing meltdown and short-circuit in the event of overheating an overvoltage. One separator is a dual-component fabric based on glass fibers and polymer fibers and comprises micropores for impregnation. One such fabric has a thickness of 2 through 15 ?m and is used as an intermediate layer between anode and cathode; applications of absorber additives such as magnesium oxide or magnesium carbonate improve the effectiveness of the separator.