Cathodic electrode of a lithium-based accumulator

A lithium-based accumulator, comprising:

• an anode electrode;
• a cathode electrode;
• a separator region between the anode electrode and the cathode electrode;
• wherein:
• the cathode electrode includes a current collector and an electrochemically active layer;
• the electrochemically active layer includes a plurality of basic structures that are formed as at least one of fibers, flakes, and grains and that include a conductive material core surrounded by a non-electrochemically active polymer in which are interspersed at least one of channels, cavities, and open pores that open to a surface of the basic structures.