The study and analysis of chemical main materials in Li-ion polymer batteries for UAV
DOI:
https://doi.org/10.54939/1859-1043.j.mst.208.2025.75-82Keywords:
Li-polymer; Li-ion; Electrode material; Battery, UAV.Abstract
For modern UAVs, the power source is usually a Li-ion polymer battery. Using modern physicochemical analysis methods such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), differential thermogravimetry (TGA), specific surface area (BET) and infrared spectroscopy (FT-IR), we determined the chemical composition of some of the main materials in Li-ion polymer batteries used for drones. We used the method of determining the corresponding size, voltage, and internal resistance to determine some of the main technical indicators of this type of battery. The analysis results show that the Li-ion polymer battery used for UAV has a cubic shape, dimensions of 281×72×5.2 mm (LxWxH), voltage of 3.78 V, internal resistance of 0.456 mΩ, positive electrode material is LiNi0.6Co0.2Mn0.2O2 coated on Al foil, negative electrode material is graphite coated on Cu foil, separator is polyethylene, binder is polyvinylidene fluoride (PVDF), positive electrode side leaf is Al, negative electrode side leaf is Cu. The analysis results also show that both negative and positive electrodes are made of fine, micrometer-sized, uniform powdered materials.
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