ISNEN, Yazid Zainur. (2022) Optimasi Performansi Baterai Li-Ion Dengan Penambahan Surfaktan Pluronic P123 Pada Katoda Baterai LiMnFeCoPO4/C. Skripsi thesis, Universitas Jenderal Soedirman.

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Abstract

The cathode is the positive electrodes of a battery, and it play role in the discharge process. The cathode modification was carried out by adding a surfactant polymer to improve the performance of the lithium battery. Surfactant pluronic 123 (P123) was used as bleeding on the cathode surface. The cathode in this research is LiMnFeCoPO4/C (LMP/C), it is the development of the LiFePO4 (LFP) cathode. The characterizations used are Electrochemical Impedance Spectroscopy (EIS) and Field Emission Scanning Electron Microscopy (FESEM). The variations of P123 were 0 wt% and 0.2 wt%. EIS characterization was used to determine the resistance and ionic conductivity, while FESEM was used to analyze the morphology and diameter distribution of the cathode particles. The results show that P123 can impact the cathode, such as charge-transfer resistance (Rct), ionic conductivity, and particle diameter distribution. The addition of P123 mass increases the Rct by 217 Ω and 1030 Ω. In addition, the ionic conductivity is 1.14×10-5 S/cm2 and 2.41×10-6 S/cm2. The particle size of the cathode decrease, but there is agglomeration. This study concludes that P123 impacts the morphological structure and electrical performance of LMP/C.

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