Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (3): 852-865.doi: 10.19799/j.cnki.2095-4239.2022.0047

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Multiscale research strategy of lithium ion battery safety issue: Experimental and simulation methods

Luyu GAN1,2(), Rusong CHEN1,2, Hongyi PAN1,2, Siyuan WU1,2, Xiqian YU1,2(), Hong LI1,2   

  1. 1.Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
    2.College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-01-21 Revised:2022-02-05 Online:2022-03-05 Published:2022-03-11
  • Contact: Xiqian YU E-mail:ganluyu@qq.com;xyu@iphy.ac.cn

Abstract:

As a new emerging electrochemical energy storage device, lithium-ion batteries (LIBs) show excellent value in consumer electronics, transportation power systems, and grid energy storage. However, there are occasional safety accidents during LIB commercialization, affecting large-scale applications. This study reviews crucial research methods for battery safety based on three research scales: material, cell, and system, including experimental methods based on physical samples and simulation methods based on computer numerical models. The basic principles of these methods are introduced, and applicable scenarios and functions are demonstrated through typical cases. The relationship between experimental and simulation methods is discussed. Representative methods are introduced, such as thermal analysis and in situ temperature-dependent characterization of materials, accelerating rate calorimetry, and numerical cell simulation. Based on a systematic review of multiscale research strategies, the research on lithium battery safety in each scale should be conducted jointly. The safety research of the next-generation lithium battery, such as solid-state and lithium metal batteries, is prospected. The safety research of these systems is in an early stage, and research on the material and cell is a crucial topic currently.

Key words: lithium ion battery, safety, experimental methods, numerical simulation, solid state battery, lithium metal battery

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