| dc.description.abstract | A research has been done about the manufactured of lithium ion batteries. The
materials that used were of LiFePO4 powders as cathode filler, MCMB as anode
filler, Super P as additives carbon, PvDf as matrix and DMAC as solvent. The
composition of LiFePO4 cathode sheet the consisted of 85 % LiFePO4, 10 %
Super P and 5 % PvDf in DMAC solvent with different thickness of 100 μm,
150 μm and 300 μm. The same composition of MCMB anode sheet as LiFePO4
cathode sheet with varied thickness of 100 μm and 150 μm and varied
composition of 85 : 10 : 5 and 80 : 13 : 7 with a thickness of 150 μm. The
electrode sheets prepared by using sheet casting based on doctor blade and
assembling process of batteries cells by using stacking method with prismatic
batteries model. The batteries used liquid electrolytes was 1M LiPF6 and
polyolefin seperator. The analysis of crystal structure on active material powders
were examined by using XRD, surface morphology and particle size on active
material powder and morphology LiFePO4 cathode sheet analyzed by using SEM,
surface morphology of the electrode sheets by using Optical Microscope and
battery capacity by BST8-10A30V. The results of research showed that the
highest capacity is 300 μm cathode thickness and the smallest is 100 μm
thickness. The influence of varied composition for MCMB anode, the
composition of 80 : 13 : 7 has higher specific capacity at cathode thickness of
100 μm, 150 μm and 300 μm with each has specific capacity is 69,65 mAh/gr,
73,61 mAh/gr and 81,93 mAh/gr. Each battery has efficiency above 98 %. The
varied thickness of MCMB anode, so the thickness of 100 μm has a higher
specific capacity at cathode thickness of 100 μm, 150 μm and 300 μm with each
has specific capacity is 79,10 mAh/gr, 82,54 mAh/gr and 88 mAh/gr. The
efficiency of each battery above 99 %. The highest battery capacity and efficiency
at 300 μm cathode thickness reached 88 mAh/gr with MCMB anode composition
of 85 : 10 : 5 at 100 μm thickness. | en_US |
