In most cases, experimental investigations are limited to surface temperatures measurements combined to the analytical or thermal modeling of heat transfer in order to obtain internal temperatures and to quantify the battery total heat generation.
According to the heat generation mechanism, the heat generation in the battery Q voltage-based (Verma and Rakshit, 2022) is defined by Eq. (1): (1) where I, U, T and represents the current, the voltage, temperature and the entropy coefficient, respectively.
He (2022) found that the main heat generation source of the battery is at the negative electrode by building a heat generation model of the battery in different dimensions and when the convective heat transfer coefficient of the battery surface was smaller, HGR of the battery was higher.
It is evident that LIB heat generation is influenced by factors such as the initial and final state of charge, chemistry, construction, charge or discharge rate, and battery temperature. The literature review indicates a scarcity of studies on the influence of configurational parameters using battery calorimeters with computational fluid dynamics.
The simulation ensured that the average battery temperature of the simulation was consistent with the average temperature of the experiment by obtaining a battery HGR using the trial-and-error method.
According to the definitions of C-rate, the charging currents for 0.5C and 1C are 140A and 280A, respectively. The technical parameters of the lithium-ion battery used in this study are summarized in Table 1.
Experimental research on thermal-electrical behavior and …
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Lithium-Ion Batteries: Latest Advances and Prospects
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Experiment 6: Ohm''s Law, RC and RL Circuits
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The research in this paper provides a theoretical basis for the electrical safety design of lithium-ion batteries caused by the arc, fills the gaps in the field of battery system arc simulation, and is of great significance for improving the safety performance of …
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Experimental investigation on heat generation behaviors of the …
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