Lithium secondary batteries(LSBs)have attracted attention due to their low cost,high voltage platform and environmentally friendly nature.As application scenarios become more complex,the demands on the capacity,durability and safety of LSBs are increasing.To develop LSBs with higher performance and greater adaptability to different scenarios,it's essential to elucidate the relationship between material structure and battery performance under complex operating conditions,and to predict battery performance under different operating conditions.Finite element method(FEM)numerical simulation is an effective method to establish a numerical model of the battery by using physical fields such as electric field,temperature field and displacement field to describe the mass transfer,heat transfer and interfacial reaction process within the battery.FEM numerical simulation can reveal the intrinsic relationship between material structure and battery performance under different operating conditions,providing theoretical and technical support for the design and development of high-performance lithium batteries.This paper first introduces the algorithm basis,research scope and development history of FEM numerical simulation in battery system from the perspective of multi-physical field coupling,summarizes the research progress of FEM numerical simulation in the design of high-performance lithium secondary batteries,and looks forward to the future development direction and its application prospects in energy storage devices.
关键词
电化学/数值模拟/有限元/锂二次电池
Key words
electrochemistry/numerical simulation/finite element method/lithium secondary battery
维普
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