Morlet小波
锂(药物)
锂离子电池
电镀(地质)
材料科学
小波变换
锂电池
电池(电)
可靠性工程
计算机科学
离子
小波
化学
人工智能
工程类
离散小波变换
物理
医学
功率(物理)
有机化学
热力学
内科学
地球物理学
离子键合
作者
Kai Lyu,Xinwei Li,Siwen Chen,Shiyou Xing,Yang Guo,Jinlei Sun
出处
期刊:Lecture notes in electrical engineering
日期:2024-01-01
卷期号:: 571-578
标识
DOI:10.1007/978-981-97-0873-4_57
摘要
Lithium-ion batteries (LIBs) are widely used in electric vehicles (EVs) and energy storage systems for their high energy density, high power density and long service life. The phenomenon of lithium plating (LP) has always threatened the safe operation of LIBs, and the detection of LP by electrochemical impedance spectroscopy (EIS) has become the focus of industry and academia. Therefore, in order to solve the time-consuming problem of existing LP detection method, this paper proposes a method of EIS calculation and LP detection method based on complex Morlet wavelet transform (CMWT). Firstly, the boundary conditions of LP phenomenon in LIBs under different rates and ambient temperatures were investigated through LP induction experiments. Then, the EIS of the battery was extracted quickly by current excitation pulse and CMWT. Finally, the EIS variation rules in different SOC intervals after LP are studied, and the LP criterion is formed. The LP detection method in this paper can promote the reduction of EIS detection time.
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