Effect of ambient dissipation condition on thermal behavior of a lithium-ion battery using a 3D multi-partition model

Identifying Efficient Cooling Approach of Cylindrical Lithium‐Ion Batteries

“…Considering the planar section of cylindrical cell and the unsteady-state heat condition with internal heat source, the governing heat conduction equation for the cell composite is expressed as Equation ( 1) and (2) for the implementation of FDM in MATLAB software. [18] ρCp…”

“…), temperature at virtual nodes in Figure 1b is calculated. Considering Figure 1b as an example, temperature at virtual node a is calculated by applying Newton's law of cooling at boundary node 4 using Equation ( 16)- (18).…”

“…The diameter and length of the LIB is 18 and 65 mm, respectively. The LIB has nominal capacity of 2200 mAh and nominal voltage of 3.7 V, [18] charging voltage of 4.2 V, and maximum charging current of 2.2 A.…”

“…A relatively less computer intensive 3D analysis using equivalent circuit network (ECN) approach for thermal behavior of cell with multiple tabs and side conductive cooling was performed recently using Python codes. [17] To improve the prediction accuracy and to avoid oversimplification of models, cell-level multipartition modeling using FEM is also a recent approach [18] in addition to several other approaches. [19][20][21][22] However, the capabilities of multipartition modeling for thermal analysis of LIB have not been explored extensively to best of the authors' knowledge.…”

“…Validation of result for the considered thermal model is done by comparing it with the experimental results. [18] Further, the temperature drop at nodes inside the cell (core) and outside the cell (surface) under the natural and forced convection conditions is determined. A parametric study is performed to identify the suitable battery cooling strategy among radial and both-tab for better thermal management by comparing the rate of cooling and temperature distribution.…”