Effect of Distribution of Conductive Additive in Cathode Electrode on the Performance of Lithium-ion Battery
Cathode electrode with double layer structure was fabricated by dual-layer coating technology.Two cathode electrodes with different distribution of conductive additive were fabricated by tuning the conductive amount in the top layer and the bottom layer.In one group,the amount of conductive additive in top layer is more than bottom layer.In another group,the amount of conductive additive in bottom layer is more than top layer.Two group batteries were produced with these two cathode electrodes,in order to study the effect of the distribution of conductive additive on the performance of lithium-ion battery.Experimental results indicate that the distribution of conductive additive has a significant effect on the internal resistance,discharge rate,cycle performance and floating charge performance.The results of this work provide new insights for the electrode design of lithium-ion battery.
lithium-ion batterycathodedouble layer structuredistribution of conductive additivecell performance
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