Cathode composites were prepared by mixing 64 wt. % of LiNi0.8Mn0.1Co0.1O2 (NMC811, Umicore) as AM, 30 wt. % of Li6PS5Cl (Umicore) as SE and 3 wt. % of carbon additives (SuperP, Imerys) as the dry cathode mixture. Two different particle size distributions (PSDs) of the AM were used and the electrodes thus formed are referred to hereafter as AM1 and AM2 where their volumetric D50's are 4 µm and 6 µm, respectively. All components were transferred into a 12 mL plastic cup with two zirconia spheres (1 mm in diameter) and dry mixed using a planetary mixer with a rotation speed of 2000 rpm for 4 min.