Design and Simulation of Green Packaging Structure for Lithium-Ion Batteries Based on Silicone Gel Material

Currently, lithium-ion battery packaging has poor sealing and positive and negative electrodes are easily damaged by humid environments; therefore, we design a structure in which the inner packaging uses HL-1029 silicone gel to wrap the lithium-ion battery, and the outer packaging is packed in a corrugated carton. According to the lithium-ion battery model and size, the thickness of HL-1029 inclusions was calculated, the packaging model was established, and the stress contour plot diagram of HL-1029 inclusions and lithium-ion batteries under the 1200 mm drop height and two drop postures in the finite element environment was analyzed; the maximum stress of the lithium-ion battery did not exceed the yield strength of its material. Based on the energy method, the reliability analysis of the final finite element simulation results is carried out. When the two drop postures are 1200 mm in height, the maximum stresses of the lithium-ion batteries are 4.367 MPa and 4.555 MPa, respectively, and the ratios of the hourglass of energy to the internal energy of the packaging system are 0.700% and 1.190%, respectively. Based on the finite element analysis results and reliability verification, HL-1029 inclusions can provide sufficient protection during lithium-ion battery transportation and have high recyclability.