The NIBs and CIBs are sodium-ion batteries and calcium-ion batteries, respectively. I used commercial graphite and recycled graphite as the anode material for NIBs and CIBs. The following two figures are the cycle testing of these two batteries. Does anycon could help to analysis these figure, and explain why the coulombic efficiency of CIBs is over 100% ?
Shubham Kaushik
Usually the Coulombic efficiency higher than 100% comes from electrolyte decomposition. For better analysis you should look at the cyclic voltammetry curves or charge-discharge profile after cycling
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