Asian Journal of Energy Transformation and Conservation 2412-3390 2409-4293 10.18488/journal.81/2014.1.2/81.2.115.125 Asian Journal of Energy Transformation and Conservation Effect of Active Mass in Electrode Disc on Performance of Li1.06ni0.313co0.313mn0.313o2cathode Asian Journal of Energy Transformation and Conservation Asian Journal of Energy Transformation and Conservation 12-2014 2014 12-2014 12-2014 1 2 115 125 30 Nov 30 Nov Li1.06Ni0.313Co0.313Mn0.313O2 sample has been synthesized by calcination of co-precipitated precursors. Scanning electron microscopy shows that sample powders are aggregated microplates with average sizes of 200 nm. Electrochemical tests show that Cell-2.0 which has the least mass in cathode disc presents initially a much higher discharge capacity under a current density of 135 mA•g-1, 270 mA•g-1, 540 mA•g-1, 810 mA•g-1, 1080 mA•g-1and 1350 mA•g-1 than the other cells. And Cell-2.0 exhibits better cycling performance with capacity retention of 95.58 % after 40 cycles at 270 mA•g-1 current densities than Cell-2.6(77.18 %), Cell-3.0(74.54 %), Cell-3.2(74.79 %) and Cell-3.6(77.56 %). The cells with a regression equation: DC(mAh•g-1)=aŚm(mg) +b, regression coefficient: r≧ 0.75216; a = 7.16984I(C)– 61.50523, regression coefficient: r = 0.95522;b= -39.75258I(C) + 297.48985, regression coefficient: r = 0.9508. Therefore, decreasing the mass in each cathode disc can improve the performance of Li1.06Ni0.313Co0.313Mn0.313O2 cells.