Device for realising an electrical liaison between an accumulator electrode and a bipolar collector using metal needles inserted in the collector

摘要

A device for producing an electrical liaison between an accumulator electrode and a bipolar collector has the electronic conduction between the material making up the bipolar collector and the electrode assured by some metal needles inserted in the collector perpendicular to its surface. These needles do not cross the collector and the collector is of a composite electronic conducting material.