Conductive carbon layers/Lithium iron-phosphate (CCL/LFP) nanocomposites with varying CCL coating levels, synthesized from two distinct LFP grain morphologies, were tested as carbon black-free cathodes for Li-ion batteries. The physicochemical and electrochemical properties of the composites were investigated, and their performance as electrode materials was systematically compared to that of standard LFP electrodes with carbon black as an additive. The measured specific capacity of the materials showed that CCL/LFP nanocomposites performed similarly to standard LFP with carbon black electrodes at low currents, while showing significant improvements at higher currents. For the 3.5% CCL composites, 1.4-2.3 times the capacity at 10C was observed in comparison to the standard electrodes. Moreover, taking into account the gravimetric and volumetric differences resulting from the elimination of carbon black additive elimination from the electrode composition, the CCL/LFP composites exhibited significantly improved performance and gravimetric and volumetric energy densities. The electrochemical impedance spectroscopy results confirmed the enhanced conductivity as well as an increased stability of the solid electrolyte interphase (SEI) layer for the CCL/LFP composites. The obtained results show the possibility of elimination of cancerous carbon black additives from electrode composition by using CCL/LFP nanocomposites, thus improving the sustainability of Li-ion electrodes simultaneously enhancing their electrochemical performance.