In the design and manufacturing process of power batteries, MPP polypropylene microcellular foams have become an important solution to realize the cushioning and thermal insulation effect between battery modules, between cells, and inside the case. In this paper, we will discuss the key applications of MPP in power batteries and its positive impact on battery performance.
First, MPP plays an important role between battery modules. Battery modules consist of multiple cells, and the assembly thickness tolerances between cells may result in gaps between modules. These gaps can affect the thermal management effectiveness and performance stability of the battery. To solve this problem, MPP polypropylene microcellular foam is used as a cushioning insulation layer between modules. With excellent elasticity and insulation properties, it fills the gaps between modules, compensates for assembly thickness tolerances, and provides stable structural support. By effectively isolating heat transfer, MPP improves the thermal management of the battery pack and ensures the stability of the battery's performance in high or low temperature environments.
Secondly, the application of MPP between cells plays a key role in battery performance and safety. The performance and life of a battery pack is largely dependent on the quality of the connections between the cells, and MPP can be used as a filler material between the cells to compensate for assembly thickness tolerances and to provide proper preload. This ensures good contact between the cells, reduces contact resistance and improves the performance stability of the entire battery pack. In addition, MPP has excellent flame retardant properties, which can improve the safety performance of the battery pack and reduce the risk of fire.
Finally, the application of MPP in the case also plays an important role in the performance and safety of the battery pack. The case is the protective shell of the battery pack, which plays a key role in cushioning, shock absorption, heat insulation and impact resistance.MPP, as a kind of lightweight and high-strength material, can be applied to the bottom guard plate, dummy cells and the end plate of the case. It can effectively reduce the impact of external shocks on the battery and provide good shock absorption. At the same time, MPP has excellent thermal insulation properties, reducing heat dissipation and improving the energy efficiency of the battery pack.
In summary, MPP polypropylene microcellular foams play an important role in cushioning and insulation solutions in power batteries. Through its application between battery modules, between cells, and within the case, MPP provides stable structural support, compensates for assembly thickness tolerances, and offers excellent thermal insulation, impact resistance, and flame retardancy. These properties significantly improve the thermal management effectiveness, performance stability and safety of power battery packs. In the future, as the electric vehicle market continues to develop, MPP polypropylene microcellular foams will continue to play an important role in the field of power batteries and contribute to the further innovation and enhancement of battery technology.
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