一种三元锂电池析锂特性以及检测方法研究
Research on Lithium Evolution Characteristics and Detection Method of a Ternary Lithium Battery
摘要: 锂电池在充电过程中会发生不同程度的析锂，析锂会影响电池的正常工作状态，对电池的性能产生影响。本论文以LG4.2V/2.75Ah18650轻型圆柱锂电池为主要的研究对象，探究三元锂电池充电后析锂的发生条件以及影响因素，对锂电池析锂特性进行分析，同时基于弛豫电压微分曲线的方法，寻找一种可行析锂的检测方式，最后通过并联试验对比正常老化与析锂老化两种不同老化模式对电池寿命的影响，探究析锂对电池安全性与可靠性的影响。
Abstract: Lithium batteries will experience varying degrees of lithium evolution during the charging process, which can affect the normal working state of the battery and have an impact on its performance. This paper focuses on the LG4.2V/2.75Ah18650 lightweight cylindrical lithium battery as the main research object, explores the occurrence conditions and influencing factors of lithium evolution af-ter charging ternary lithium batteries, analyzes the lithium evolution characteristics of lithium batteries, and based on the relaxation voltage differential curve method, finds a feasible detection method for lithium evolution. Finally, through parallel experiments, the impact of normal aging and lithium evolution aging on battery life is compared to explore the impact of lithium analysis on bat-tery safety and reliability.
文章引用：吴思杰. 一种三元锂电池析锂特性以及检测方法研究[J]. 建模与仿真, 2024, 13(1): 828-837. https://doi.org/10.12677/MOS.2024.131080

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