Nonlinear Finite Element Analysis of the Mechanical Properties of Lithium Battery Electrodes
In order to improve the problem of deformation of lithium battery electrodes during the drying process,as well as to use the pressure difference of hot air to suspend the deformation of the electrodes,the deformation law of the electrodes is explored from the perspective of lithium battery electrodes,fundamentally solving the drying problem of the electrodes.Using nonlinear finite element method to study the mechanical properties of polar plates,focusing on understanding the deformation of polar plates under different air pressures,and analyzing geometric nonlinear problems based on the incremental equilibrium equation of triangular plane elements derived from the modified Lagrangian description system.On this basis,the lateral static deformation of the polar plate under external pressure and self gravity in a state similar to a simply supported beam was analyzed.Comparing the calculated deformation data with the specific experimental values,it was found that the results obtained by the designed calculation method were close to the experimental values,proving that the use of mechanical property methods to study the deformation of polar plates in static deformation is very effective.The research results can provide a reasonable scientific basis for designing drying equipment for lithium batteries.
lithium battery electrodesstatic deformationnonlinear finite element
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