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Lithium batteries have been widely used because of their unique advantages, and they are indispensable in the fields of energy storage and new energy vehicle batteries. However, safety problems such as thermal runaway of the battery during use will not only cause a lot of economic losses but also restrict the further development of lithium batteries. Therefore, it is urgent to achieve accurate and effective detection of the health status of lithium batteries.The numerical simulation method with low cost and short time can realize the effective simulation of the lithium battery in all aspects. Therefore, the full three-dimensional electrochemical and thermal coupling model of the lithium battery is established in this paper. It includes the controlling equation of model building and the concrete process of model building. Then the effects of different battery parameters and external environmental factors on the electrochemical and thermal behavior of the battery were investigated.

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Electrochemical-Thermal Coupling Simulation Calculation Technique and Equivalent Processing Method for Lithium-Ion Battery Thermal Control

  • 会议论文

  • 发表日期：

    2025年

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  • Xiaoyong Nie,
  • Xiaoming Wang,
  • Tingting Li,
  • Xiangyu Lin,
  • Xuanren Meng

摘要

Lithium batteries have been widely used because of their unique advantages, and they are indispensable in the fields of energy storage and new energy vehicle batteries. However, safety problems such as thermal runaway of the battery during use will not only cause a lot of economic losses but also restrict the further development of lithium batteries. Therefore, it is urgent to achieve accurate and effective detection of the health status of lithium batteries.The numerical simulation method with low cost and short time can realize the effective simulation of the lithium battery in all aspects. Therefore, the full three-dimensional electrochemical and thermal coupling model of the lithium battery is established in this paper. It includes the controlling equation of model building and the concrete process of model building. Then the effects of different battery parameters and external environmental factors on the electrochemical and thermal behavior of the battery were investigated.