Electrochemical electrode structure, electrochemical cell, bipolar electrode assembly, electrochemical cell arrangement, and method of attaching an electrode element to a supportive element of an electrochemical electrode structure for an electrochemical cell

An electrochemical electrode structure comprising:

• at least one electrode element;
• and
• a supportive element;
• wherein each electrode element is a two-dimensionally extended electrically conductive element with an open structure and having a first edge portion;
• wherein the supportive element has a resilient region extending areally in a plane of the main extension of the resilient region, the resilient region being adapted to push the at least one electrode element away from the supportive element in a direction at least substantially perpendicular to the plane of the main extension of the resilient region;
• wherein the supportive element has a first tongue region arranged at an edge of the supportive element, wherein the first edge portion of the at least one electrode element is bent around the first tongue region of the supportive element thereby attaching the at least one electrode element to the supportive element.

A method of attaching an electrode element to a supportive element of an electrochemical electrode structure for an electrochemical cell, the method comprising:

• providing an electrode element being a two-dimensionally extended electrically conductive element with an open structure and having a first edge portion;
• providing a supportive element having a resilient region extending areally in a plane of the main extension of the resilient region and a first tongue region arranged at an edge of the supportive element;
• arranging the electrode element onto the resilient region of the supportive element so that the first edge portion of the electrode element extends at least in part beyond the first tongue region of the supportive element;
• and
• bending the first edge portion of the at least one electrode element around the first tongue region of the supportive element thereby attaching the at least one electrode element to the supportive element in a wrap joint.