Electrode for electrochemical bundle of metal ion storage battery or supercapacitor, related bundle manufacturing method and storage battery

摘要

The present invention relates to an electrode (2, 3) for an electrochemical bundle of a metal ion battery or supercapacitor, the metal strip supporting the active metal ion insertion material (2I, 3I) in the central part (22, 32) thereof The side band, called the edge (20, 30), lacks the active insertion material, the side band being characterized by its metal material and / or its Including end regions (21, 31) whose shape is modified with respect to the edges (20, 30) and the rest of the strip at the central portion (22, 32), the predetermined compressive stress (E) being With respect to the electrodes (2, 3), which when applied to the end region, causes local plastic buckling in the end region and the central part does not deform under the predetermined compressive stress .