A solid lithium cell formed by stacking of an etched copper substrate, of a graphite layer, of an electrolyte, and of a layer of nickel, manganese and cobalt oxides, the electrolyte being in contact with the graphite layer and the layer of nickel, manganese and cobalt oxides, the copper substrate forming an anode of the cell, and the layer of nickel, manganese and cobalt oxides forming a cathode of the cell,
- in which the electrolyte is a solid lithium-based electrolyte and the graphite layer exhibits a first solid electrolyte interface produced during a prelithiation with a liquid lithium-based electrolyte and a second solid electrolyte interface produced during a prelithiation with the solid lithium-based electrolyte.