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汽车安全与节能学报

JASE ›› 2017, Vol. 08 ›› Issue (01): 15-29.DOI: 10.3969/j.issn.1674-8484.2017.01.002

• 综述与展望 • 上一篇    下一篇

锂离子电池机械完整性研究现状和展望

许骏1,2，王璐冰1,2，刘冰河1,2   

  1. 1. 北京航空航天大学 交通科学与工程学院汽车工程系，北京100191，中国；
    2. 北京航空航天大学 先进载运科学研究中心 (AVRC)，北京100191，中国
  • 收稿日期:2016-09-18 出版日期:2017-03-23 发布日期:2017-03-23
  • 作者简介:许骏，北京航空航天大学“卓越百人”教授、博士生导师、先进载运科学中心主任。入选第12 批国家“青年千人”计划、中国科协首批“青年人才托举工程”。主要研究方向包括：汽车碰撞安全、轻质材料与结构以及应力波传播行为。现任美国机械工程师学会（ASME）断裂与失效专业委员会委员、多功能材料委员会委员，中国复合材料学会理事。
  • 基金资助:

    中央高校基本科研业务费(YWF-16-RSC-011) ；汽车安全与节能国家重点实验室开放基金(KF16142) ；
    国家青年千人计划及北航卓越百人计划教授专项科研启动经费。

Review for mechanical integrity of lithium-ion battery

XU Jun1,2, WANG Lubing1,2, LIU Binghe1,2   

  1. 1. Department of Automotive Engineering, Beihang University, Beijing 100191, China;
    2. Advanced Vehicle Research Center (AVRC), Beihang University, Beijing, 100191, China
  • Received:2016-09-18 Online:2017-03-23 Published:2017-03-23
  • About author:Prof. XU Jun，is one of “Zhuoyue 100” chaired professors and the director of Advanced Vehicle Research Center at the Beihang University in China. He was selected in the 12th National Youth 1000 Plan Program, 1st National Young Elite Science Sponsorship Program by the Chinese Academy of Science and Technology. His major research area includes vehicle crash safety, lightweight materials and structures, and stress wave propagation behaviors. Prof. Xu is now a member of the Fracture and Failure Mechanics Committee, Multifuncational Material Committee of the American Society of Mechanical Engineers (ASME), and a trustee of Chinese Society of Composites.

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摘要：

本文总结了车用锂离子电池机械完整性领域研究现状，指出了存在的问题，并明确未来的重要发展方向。在交通事故中受到机械过载，包括在振动与冲击、大变形、针刺等载荷条件下，锂离子电池会发生内部短路、温度升高、电池体内压强上升，从而导致热逃逸现象，最终有可能引发失火及爆炸等灾难性后果。这将影响车用锂离子电池的安全性，阻碍电动汽车的推广与应用。目前研究者从材料、单体、模组、系统等不同尺度，通过实验、理论、仿真等方法，考虑多物理场耦合机制多方位地对锂离子电池展开研究。

关键词: 电动汽车, 汽车安全, 锂离子电池, 机械完整性, 多物理场耦合

Abstract:

This paper reviews the current status of the mechanical integrity study on electric vehicle lithium-ion batteries, points out shortcomings and unsolved problems, and pinpoints important future research frontiers. Due to the inevitable traffic crash accidents, lithium-ion battery would experience internal short-circuit, temperature rise, pressure increase thus leading to thermal runaway, and finally causing catastrophic consequences such as fire and explosion, subject to mechanical abuse conditions including vibration and shock, large deformation and nail penetration. The possible safety issue may restrain the further spreading and wider pplication of electric vehicles. Researchers have a comprehensive study for lithium-ion battery through experiment, theory and simulation considering multi-physics field from different scale, such as material, cell, modulus and system.

Key words: electric vehicles, vehicles safety, lithium-ion battery, mechanical integrity, multi-physics coupling