Design and Manufacture of Industrial Lithium Ion Batteries to Evaluate the Engineering of the Electrode Coating Process and the Effect of Cathode Coating Thickness on the Performance of Manufactured Lithium Ion Batteries

In this research, the effect of electrode thickness on the performance of the batteryhas been investigated. In the first stage, with the use of the simulation method, the optimum value of the thickness of the NCM and LFP electrode was investigated. In the next step,the electrode thickness was optimized in practical and lab-scale for both LFP and NCM cathodic materials. Finally, based on simulation data and observations, the effect of electrode thickness on the electrochemical parameters of battery with LFP cathodic material, in industry scale was investigated. Based on laboratory data, LFP electrode with ۳۴, ۴۵, ۶۲, ۷۰, ۷۵, ۹۸, ۱۰۶, ۱۲۲, ۱۴۷ and ۱۵۹ μm thickness show ۶۶, ۹۶, ۱۱۴, ۱۱۸, ۱۲۴, ۱۳۲, ۱۲۸, ۱۰۲, ۶۷ mAh .g-۱ discharge capacities and NCM electrode with ۳۰, ۴۱, ۵۹, ۶۵, ۷۳, ۹۲, ۱۰۵, ۱۲۰, ۱۴۸ and ۱۶۱ thickness has ۵۹, ۸۲, ۱۰۴, ۱۰۶, ۱۰۸, ۱۰۹, ۹۵, ۸۳, ۵۵ and ۴۲ mAh .g-۱ discharge capacities in the ۰.۱C rate, respectively. The industrial LFP electrode with ۷۵, ۱۱۲.۵, and ۱۵۰ μmwas produced and investigated in ۰.۵, ۱, ۲, ۳, ۴, ۵, ۶, ۷, ۸, ۹, and ۱۰C rates. The electrode with ۱۱۲.۵ μm thickness shows the best reversibility. The EIS impedance was donefor all industrial batteries in different cycle states.