Lithium battery pack thermal abuse safety risk assessment method based on multi-physics field simulation
A lithium battery pack, multi-physics technology, applied in data processing applications, design optimization/simulation, electrical digital data processing, etc. Evaluate the thermal safety of lithium battery packs and other issues to achieve the effect of accurate simulation evaluation
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 In order to obtain a clearer understanding of the features and advantages of the present invention, in conjunction with the accompanying drawings, a typical lithium battery pack is taken as an example, and the detailed description is as follows:
 Step 1: Determine the configuration and geometry of the lithium battery pack. Taking a typical 4-parallel 6-series lithium battery pack as an example, the lithium battery cell is an NCR 18,650-B type lithium iron phosphate battery, and the rated voltage and capacity of the battery cell are 4.2V and 3.35A, respectively. Lithium battery pack structure and simulation geometric model such as image 3 As shown, the configuration and series-parallel structure are as follows Figure 4 shown.
 Step 2: Build a thermal abuse-oriented lithium battery pack multiphysics simulation model. The construction starts from the two levels of the battery cell and the module. The model of the lithium battery cell adopts the equival...
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