Hybrid liquid cathode battery

The invention relates to a liquid cathode battery comprising: a calcium anode; an electrolyte comprising a sulfur and / or phosphorus oxidizing solvent and at least one salt; a cathode comprising, as active material, a compound identical to the aforementioned oxidizing solvent; characterized in that the cathode comprises a first zone consisting of a carbon matrix comprising entangled carbon fibers having a porosity of at least 90% and a specific surface area less than or equal to 5 m2 / g and comprises a second zone distinct from the first zone, said second zone consisting of a composite material comprising a binder and carbon black.