Method for producing electrodes having an improved current collector structure

An electrode, comprising:

• an electrode arrangement, including:
• at least one free-standing active material foil;
• an electrically conductive layer on at least one surface of the active material foil, the electrically conductive layer being formed immediately on the surface of the active material foil in this manner to form the current collector layer;
• an electrical terminal region connected to the electrically conductive layer to enable connection to an electrical power circuit;
• wherein the electrode has an electrically conductive current collector layer having a terminal region for connection to an electrical power circuit, and
• wherein to improve the electrical discharge via the terminal region, the current collector layer has at least one structural element having an electrical conductivity that is increased compared to the current collector layer, through which structural element the electrical resistance between a point on the current collector layer and the terminal region is reduced,
• wherein the current collector layer includes a gradual layer thickness curve that continuously decreases as the distance from the electrical terminal region increases.

An electrochemical energy storage system, comprising:

• at least one electrode, including:
• at least one free-standing active material foil;
• an electrically conductive layer on at least one surface of the active material foil, the electrically conductive layer being formed immediately on the surface of the active material foil in this manner to form the current collector layer;
• an electrical terminal region connected to the electrically conductive layer to enable connection to an electrical power circuit;
• wherein the electrode has an electrically conductive current collector layer having a terminal region for connection to an electrical power circuit, and
• wherein to improve the electrical discharge via the terminal region, the current collector layer has at least one structural element having an electrical conductivity that is increased compared to the current collector layer, through which structural element the electrical resistance between a point on the current collector layer and the terminal region is reduced,
• wherein the current collector layer includes a gradual layer thickness curve that continuously decreases as the distance from the electrical terminal region increases.