化工学报 ›› 2024, Vol. 75 ›› Issue (11): 3896-3910.DOI: 10.11949/0438-1157.20241152

• 综述与专论 • 上一篇    下一篇

有限元数值模拟在高性能锂二次电池设计中的应用进展

刘朔1(), 宋雪旦2(), 聂全灏2, 张强1, 杨艺1, 于畅1(), 邱介山3()   

  1. 1.大连理工大学化工学院,辽宁省能源材料化工重点实验室,精细化工国家重点实验室,智能材料化工前沿科学中心,辽宁 大连 116024
    2.大连理工大学化学学院,辽宁 大连 116024
    3.北京化工大学化学工程学院,北京 100029
  • 收稿日期:2024-10-18 修回日期:2024-11-25 出版日期:2024-11-25 发布日期:2024-12-26
  • 通讯作者: 宋雪旦,于畅,邱介山
  • 作者简介:刘朔(1999—),男,硕士研究生,shuo_liu@mail.dlut.edu.cn
  • 基金资助:
    国家重点研发计划项目(2022YFB4101602);国家自然科学基金项目(22078052);中央高校基本科研业务费专项资金(DUT23LAB612)

Application progress of finite element method numerical simulation in the design of high-performance lithium secondary batteries

Shuo LIU1(), Xuedan SONG2(), Quanhao NIE2, Qiang ZHANG1, Yi YANG1, Chang YU1(), Jieshan QIU3()   

  1. 1.State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Energy Materials and Chemical Engineering, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
    2.School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
    3.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2024-10-18 Revised:2024-11-25 Online:2024-11-25 Published:2024-12-26
  • Contact: Xuedan SONG, Chang YU, Jieshan QIU

摘要:

锂二次电池凭借成本低、电压平台高和环境友好等优点备受关注,日益复杂的应用场景对锂二次电池的容量、耐候性以及安全性等提出了更高的要求。阐明复杂工况下材料结构与电池性能之间的“构-效”关系并预测不同服役工况下的电池性能,对开发出性能更高和适应场景更宽的锂二次电池至关重要。有限元(FEM)数值模拟是基于电场、温度场和力学场等物理场耦合建立电池数值模型,描述电池内部的物质传递、热量传递及界面反应过程的有效方法,能够揭示不同服役工况下材料结构与电池性能的内在规律关系,为高性能锂二次电池设计和开发提供了理论和技术支撑。本文从多物理场耦合方面介绍了电池体系中FEM数值模拟的算法基础、研究范畴和发展历程,综述了FEM数值模拟在高性能锂二次电池设计中的研究进展,展望了未来发展方向及其在储能器件中的应用前景。

关键词: 电化学, 数值模拟, 有限元, 锂二次电池

Abstract:

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.

Key words: electrochemistry, numerical simulation, finite element method, lithium secondary battery

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