Electrochemical electrode structure, electrochemical cell, and method of retrofitting a finite-gap electrochemical cell into a zero-gap type electrochemical cell

Abstract

An electrochemical electrode structure comprises a current collector and at least one electrode element, wherein the at least one electrode element is a two-dimensionally extended electrically conductive element having an open structure. In this electrochemical electrode structure, the at least one electrode element has at least one edge with a hemming rim at which a strip portion of the electrode is hemming bent away. An electrochemical cell comprises a first electrode, a second electrode and a separator, with either the first electrode or the second electrode or both electrodes being such an electrochemical electrode structure. A method comprises retrofitting a finite-gap electrochemical cell into a zero-gap type electrochemical cell using such electrochemical electrode structure.

Dependencies are inferred from the claim text.