电源学报

基于电化学-热-应力耦合模型的锂离子电池析锂分析

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贾琼男 , 锁要红

电源学报 | 新能源发电与储能 2026,24(5): 131-138

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电源学报 |新能源发电与储能 2026 , 24 (5) : 131 -138

基于电化学-热-应力耦合模型的锂离子电池析锂分析

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贾琼男, 锁要红

作者信息

福州大学先进制造学院，泉州　362200

通讯作者:

锁要红（1976—　），女，通信作者，博士，教授。研究方向：锂离子电池中的多场耦合。E-mail：t17019@fzu.edu.cn。

作者简介:

贾琼男（1995—　），男，硕士研究生。研究方向：锂离子电池多物理场耦合。E-mail：218527116@fzu.edu.cn。

Analysis of Lithium Plating Based on Electrochemical-thermal-stress Coupling Model for Lithium-ion Batteries

Qiongnan JIA, Yaohong SUO

Affiliations

School of Advanced Manufacturing, Fuzhou University, Quanzhou 362200, China

出版时间: 2026-05-30 doi: 10.13234/j.issn.2095-2805.2026.5.131

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摘要

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析锂是锂离子电池性能下降、温升及电池膨胀变形的主要原因。为了探究锂离子电池充电过程中的析锂量、电池温度变化及负极颗粒的破坏规律，建立了基于析锂的电化学-热-应力耦合模型，然后分析了不同充电倍率下锂离子电池的负极电势和析锂量随容量的变化，最后讨论了初始温度、充电方式和负极颗粒半径对锂离子电池析锂量、平均温度和负极颗粒冯∙米塞斯（Von Mises）应力的影响。结果表明，析锂量随着充电倍率的增大逐渐增加；为了减小锂离子电池在充电过程中的析锂量、温升及负极颗粒的Von Mises应力，应避免电池在初始温度较低时充电，或减小负极颗粒半径，或采用多阶段恒流恒压充电（4C充电至6 A∙h切换3C，3C充电至截止电压进行恒压充电）。所得研究结果将为抑制析锂提供思路。

关键词

析锂 / 锂离子电池 / 电化学-热-应力耦合 / Von Mises应力

Abstract

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The lithium plating is the main reason for the performance degradation, temperature rise and expansion deformation of lithium-ion batteries (LIBs). In order to investigate the lithium plating amount (LPM), temperature variation and the damage of the cathodic particles during the charging of LIBs. Firstly, an electrochemical-thermal-stress coupling model with lithium plating is developed. Then, the influences of charge rate on the cathodic electrical potential and LPM are analyzed. Finally, the effects of the initial temperature, charging mode and cathodic particle radius on the LPM, average temperature and Von Mises stress of cathodic particle are discussed, respectively. Numerical results show that LPM increases with the increase of charge rate. In order to reduce LPM, temperature rise and Von Mises stress during the charge, the charge at lower initial temperature should be avoided, the cathodic particle radius should be reduced or multi-stage constant current and constant voltage charging (4C to 6 A∙h, 3C to the cutoff voltage and constant voltage charging) should be used. This work will provide some guidance for reducing lithium plating.

Key words

Lithium plating / lithium-ion battery / electrochemical-thermo-stress coupling / Von Mises stress

引用本文

贾琼男, 锁要红. 基于电化学-热-应力耦合模型的锂离子电池析锂分析. 电源学报, 2026 , 24 (5) : 131 -138 . DOI: 10.13234/j.issn.2095-2805.2026.5.131

Qiongnan JIA, Yaohong SUO. Analysis of Lithium Plating Based on Electrochemical-thermal-stress Coupling Model for Lithium-ion Batteries[J]. Journal of Power Supply, 2026 , 24 (5) : 131 -138 . DOI: 10.13234/j.issn.2095-2805.2026.5.131

基金

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国家自然科学基金资助项目(12272095)

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2026年第24卷第5期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.5.131

接收时间：2023-12-21
首发时间：2026-10-29
出版时间：2026-05-30

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出版历史

收稿日期：2023-12-21
修回日期：2024-03-15
录用日期：2024-04-01

基金

National Natural Science Foundation of China(12272095)

国家自然科学基金资助项目(12272095)

作者信息

福州大学先进制造学院，泉州　362200

通讯作者:

锁要红（1976—　），女，通信作者，博士，教授。研究方向：锂离子电池中的多场耦合。E-mail：t17019@fzu.edu.cn。

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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