【作者】 熊鑫； 汪玉洁； 陈宗海；

【Author】 Xiong Xin;Wang Yu-Jie;Chen Zong-Hai;Department of Automation,University of Science and Technology of China;

【机构】 中国科学技术大学自动化系；

【摘要】 锂离子电池作为一种高效、可持续的储能载体,其充放电过程中伴随着电化学、热和机械等特性的变化。电池系统的安全性与其内部电极、隔膜、电解液等材料的形变、破碎和老化等状态密切关联,锂离子电池的机械特性能够内在的表现其健康和故障信息。因此,研究锂离子电池的机械特性形成和演化机理、分析锂离子电池机械特性建模及其应用方法,对提高锂离子电池系统的故障早期诊断能力以及健康状态预测水平,进而提高电池系统的安全性具有重要意义。本文对国内外锂离子电池机械特性形成机理、建模和应用的研究进行了综述,分析了机械特性的多时间尺度特性及其形成机理和应用方法。最后,对未来锂离子电池机械特性的研究和应用方向进行了展望。更多还原

【Abstract】 As an efficient and sustainable energy storage carrier, lithium-ion batteries are accompanied by changes in electrochemical, thermal, and mechanical properties during charging and discharging. The safety of the battery system is closely related to the deformation, fragmentation and aging of its internal electrodes, separators, electrolytes and other materials, and the mechanical properties of lithium-ion batteries can intrinsically express their health and fault information.Therefore, it is of great significance to study the formation and evolution mechanism of mechanical characteristics of lithium-ion batteries, analyze the modeling of mechanical characteristics and their application methods, and improve the ability of early diagnosis and the state of health prediction of lithium-ion battery systems, thereby improving the safety of battery systems. In this paper, the research on the formation mechanism, modeling and application of mechanical characteristics of lithium-ion batteries at home and abroad is reviewed, and the multi-scale characteristics of mechanical properties and their formation mechanisms and application methods are analyzed. Finally, the research and application direction of mechanical properties of lithium-ion batteries in the future are prospected.更多还原