Method for Producing an Electrode for an Electrochemical Cell, Composite Electrode, and Electrochemical Cell

A method for producing a composite electrode for an electrochemical cell, comprising:

• applying a self-supporting electrode film and/or a dry electrode mixture to a porous collector foil;
• and
• compressing the self-supporting electrode film and/or the dry electrode mixture and the porous collector foil to form a composite electrode;
• wherein the self-supporting electrode film and/or the dry electrode mixture comprises a multiplicity of dry-processed particles, the multiplicity of dry-processed particles containing at least a binder, a conductivity additive, and an active material;
• wherein the porous collector foil has openings that extend through the porous collector foil;
• wherein the electrode film or the dry electrode mixture is pressed at least partially into the openings of the porous collector foil;
• and
• wherein the composite electrode is free from adhesion promoters.

A composite electrode, comprising:

• a porous collector foil, comprising a plurality of openings extending through the porous collector foil from a top side of the porous collector foil to a bottom side of the porous collector foil;
• and
• a self-supporting electrode film and/or a dry electrode mixture, comprising a multiplicity of dry-processed particles, the multiplicity of dry-processed particles containing at least a binder, a conductivity additive, and an active material;
• wherein the electrode film and/or the electrode mixture is adhered to the top side and/or the bottom side of the collector foil.