This research shows improved thermal uniformity and performance in lithium-ion batteries for UAVs, indicating the advantages of a new virtual interconnection method.
This study comparatively investigates the electrical and thermal performances of four different lithium-ion battery configurations (1S1P, 2S1P, 2S2P, 3S1P) for unmanned aerial vehicles (UAVs) at 0.5C-3C discharge rates. The main innovations of the study are as follows: (1) A new virtual connection method is developed that eliminates the need for physical busbars, which reduces the battery pack weight by ~15% while increasing the thermal uniformity by up to 20%. This method, validated by NTGK electrochemical-thermal model simulations and experimental studies, provides a significant advantage in the design of compact and lightweight energy systems for UAVs. (2) Parallel topologies (especially 2S2P) are shown to perform better than series-weighted configurations - voltage drop is limited to
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Uzun et al. (2025) studied this question.
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