车用锂电池PP隔膜机械失效导致内部微短路的机理研究*

doi:10.19562/j.chinasae.qcgc.2020.04.006

摘要/Abstract

摘要： 车用锂电池在工作过程中会经受机电热的耦合作用,其中机械滥用是引发锂电池内部短路的最主要风险之一,很可能导致严重的起火事故。隔膜的机械完整性是防止锂电池在机械滥用条件下发生内部短路的关键因素。通过综合的力学测试发现,不同尺寸的压头导致PP隔膜两种截然不同的变形和失效模式。最后分析了触发锂电池内部微短路的机理,并通过力学试验和理论分析提出了锂电池内部微短路下的隔膜临界位移准则。

关键词: 锂电池, 机械滥用, 隔膜, 失效模式, 内部微短路

Abstract: The lithium-ion batteries for electric vehicle in the course of work will withstand the coupling of mechanical, electrical and thermal effects, in which mechanical abuse is one of the most important risks leading to the internal short circuit of lithium-ion batteries, which is likely to result in serious fire accidents. The mechanical integrity of separator is a key factor in preventing the internal short circuit of lithium-ion battery under the condition of mechanical abuse. Through comprehensive mechanical tests, it is found that different sizes of punches will lead to two distinct deformation and failure modes of PP separator. Finally, the mechanism of triggering internal micro-short circuit in lithium-ion battery is analyzed and a critical displacement criterion of separator under the internal micro-short circuit of lithium-ion battery is put forward based on mechanical tests and theoretical analysis

Key words: li-ion battery, mechanical abuse, separator, failure modes, internal micro-short circuit

李志杰, 陈吉清, 兰凤崇, 杨威. 车用锂电池PP隔膜机械失效导致内部微短路的机理研究^*[J]. 汽车工程, 2020, 42(4): 454-461.

Li Zhijie, Chen Jiqing, Lan Fengchong, Yang Wei. Study on Mechanism of Internal Micro-short Circuit in EV Li-IonBattery Caused by Mechanical Failure of PP Separator[J]. Automotive Engineering, 2020, 42(4): 454-461.

参考文献

[1] WEN Jianwu, YU Yan, CHEN Chunhua. A review on lithium-ion batteries safety issues: existing problems and possible solutions[J]. Material Express,2012,2(3):197-212.
[2] ZHANG Songan, ZHOU Qing, XIA Yong. Influence of mass distribution of battery and occupant on crash response of small lightweight electric vehicle[C]. SAE Paper 2015-01-0575.
[3] LEISING R A, PALAZZO M J, TAKEUCHI E S, et al. Abuse testing of lithium-ion batteries: characterization of the overcharge reaction of LiCoO2/graphite cells[J]. Journal of the Electrochemical Society,2001,148(8):A838-A844.
[4] TAKAHASHI M, KOMATSU K, MAEDA K. The safety evaluation test of lithium-ion batteries in vehicles: investigation of overcharge test method[J]. ECS Transactions,2012,41(30):27-41.
[5] 李贺,于申军,陈志奎,等.锂离子电池内部短路失效的反应机理[J].电化学,2010,16(2):185-190.
[6] SANTHANAGOPALAN S, RAMADASS P, ZHANG J. Analysis of internal short-circuit in a lithium ion cell[J]. Journal of Power Sources,2009,194(1):550-557.
[7] XU Jun, WANG Lubing, GUAN Juan, et al. Coupled effect of strain rate and solvent on dynamic mechanical behaviors of separators in lithium ion batteries[J]. Materials & Design,2016,95(5):319-328.
[8] ZHANG Xiaowei, SAHRAEI E, WANG Kai. Deformation and failure characteristics of four types of lithium-ion battery separators[J]. Journal of Power Sources,2016,327(30):693-701.
[9] SHEIDAEI A, XIAO Xinran, HUANG Xiaosong, et al. Mechanical behavior of a battery separator in electrolyte solutions[J]. Journal of Power Sources,2011,196(20):8728-8734.
[10] LEE Hun, YANILMAZ M, TOPRAKCI O, et al. A review of recent developments in membrane separators for rechargeable lithium-ion batteries[J]. Energy Environ. Sci.,2014(12):3857-3886.
[11] MARCICKI J, BARTLETT A, YANG Xiaoguang, et al. Battery abuse case study analysis using LS-DYNA[C]. 14^th International LS-DYNA Users Conference,2016.
[12] ZHANG Xiaowei, SAHRAEI E, WANG Kai. Li-ion battery separators, mechanical integrity and failure mechanisms leading to soft and hard internal shorts[J]. Scientific Reports,2016(6):32578-32586.
[13] ARORA P, ZHANG Zhengming. Battery separators[J]. Chem. Rev.,2004,104(10):4419-4462.
[14] CANNARELLA J, LIU X, LENG C Z, et al. Mechanical properties of a battery separator under compression and tension[J]. Journal of The Electrochemical Society,2014,16(11):F3317-F3122.
[15] CAI Wei, WANG Hsin, MALEKI H, et al. Experimental simulation of internal short circuit in Li-ion and Li-ion-polymer cells[J]. Journal of Power Sources,2011,196(18):7779-7783.

车用锂电池PP隔膜机械失效导致内部微短路的机理研究^*

Study on Mechanism of Internal Micro-short Circuit in EV Li-IonBattery Caused by Mechanical Failure of PP Separator

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 12

Metrics

本文评价

推荐阅读 10

[1]	郭文超,杨林,邓忠伟,李济霖,范志先. 云端数据驱动的锂电池故障分级预警研究[J]. 汽车工程, 2023, 45(9): 1677-1687.
[2]	王俊峰,陈吉清,兰凤崇,刘青山. 矢量-角度几何映射的方向重要抽样分布函数近似化方法及多失效模式可靠性分析[J]. 汽车工程, 2023, 45(6): 1081-1089.
[3]	段志勇,马菁. 锂电池热管-液冷板式冷却结构多目标优化[J]. 汽车工程, 2023, 45(11): 2047-2057.
[4]	陈光,魏晨阳,李晓宇,景国玺. 基于梁单元简化模型的锂电池组碰撞安全临界条件的判定[J]. 汽车工程, 2022, 44(5): 722-729.
[5]	刘首彤,黄沛丰,白中浩. 锂离子电池机械滥用失效机理及仿真模型研究进展[J]. 汽车工程, 2022, 44(4): 465-475.
[6]	吴晓刚,齐明山,杜玖玉,Shchurov N. I.,Shtang A. A.. 不同充电倍率下锂离子电池组冷却系统结构设计[J]. 汽车工程, 2022, 44(4): 482-494.
[7]	常润泽,郑斌,冯旭宁,徐成善,王淮斌,陈立铎,王有镗. 隔热层对锂电池模组热失控蔓延特性影响的实验研究[J]. 汽车工程, 2021, 43(10): 1448-1456.
[8]	靳博文, 乔慧敏, 潘天红, 陈山. 基于内阻功率消耗的锂电池SOC估计^*[J]. 汽车工程, 2020, 42(8): 1008-1015.
[9]	陈吉清, 刘蒙蒙, 周云郊, 兰凤崇, 骆济焕. 不同滥用条件下车用锂电池安全性实验研究^*[J]. 汽车工程, 2020, 42(1): 66-73.
[10]	靳立强, 孙志祥, 刘志茹, 李建华, 杨名. 不同温度下锂电池剩余电量估算的仿真研究^*[J]. 汽车工程, 2019, 41(5): 590-598.
[11]	宋凯,陈旭,成艾国. 考虑温度影响和滞回效应的锂电池特性建模^*[J]. 汽车工程, 2019, 41(3): 334-339.
[12]	徐宁, 楼狄明, 谭丕强, 胡志远. 电动公交客车增程器开关控制策略和等效能耗最小化策略优化^*[J]. 汽车工程, 2018, 40(12): 1377-1384.