Due to the small percolation threshold of nanoparticles, it was chosen to pursue the substitution of carbon in electrode composites by conductive F-and Sb co-doped SnO2 nanoparticles, to deconvolute the effect of the conductive additive from the properties of the active material upon the cyclability of La2(Ni/Co)O4 in all-solid-state fluoride-ion battery cathode composites.