不同衰退状态磷酸铁锂动力电池组件的燃烧性及危险性研究

doi:10.12028/j.issn.2095-4239.2019.0133

储能科学与技术 ›› 2019, Vol. 8 ›› Issue (6): 1176-1181.doi: 10.12028/j.issn.2095-4239.2019.0133

不同衰退状态磷酸铁锂动力电池组件的燃烧性及危险性研究

高飞¹, 王康康¹, 田宝贵², 陈庆涛³, 杨凯¹, 苏镇西³, 张明杰¹, 刘伟³, 范茂松¹, 刘皓¹, 耿萌萌¹, 王凯丰¹

1 中国电力科学研究院有限公司新能源与储能运行控制国家重点实验室, 北京 100192;
2 北京科技大学材料科学与工程学院, 北京 100083;
3 国网安徽省电力有限公司, 安徽合肥 230000

收稿日期:2019-06-11 修回日期:2019-06-13 出版日期:2019-11-01 发布日期:2019-07-31
通讯作者: 杨凯,博士,研究方向为大规模电池储能技术,E-mail:yangkai@epri.sgcc.com.cn;田宝贵,从事锂离子电池安全性研究,E-mail:1159161562@qq.com。
作者简介:高飞(1981-),男,高级工程师,研究方向为储能锂离子电池安全性研究,E-mail:gaofei2@epri.sgcc.com.cn
基金资助:
国家电网有限公司科技项目：大容量储能锂离子电池系统热失控模拟仿真及评测技术研究（DG71-17-006）。

Combustibility and hazard of lithium iron phosphate power battery components in different aging states

GAO Fei¹, WANG Kangkang¹, TIAN Baogui², CHEN Qingtao³, YANG Kai¹, SU Zhenxi³, ZHANG Mingjie¹, LIU Wei³, FAN Maosong¹, LIU Hao¹, GENG Mengmeng¹, WANG Kaifeng¹

1 State Key Laboratory of Operation and Control of Renewable Energy&Storage Systems, China Electric Power Research Institute, Beijing 100192, China;
2 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3 State Grid Anhui Electric Power CO. LTD, Hefei 230000, Anhui, China

Received:2019-06-11 Revised:2019-06-13 Online:2019-11-01 Published:2019-07-31

摘要/Abstract

摘要： 选用四种衰退状态，容量保持率（capacity retention ratio，CRR）分别为100%、85%、75%及65%的磷酸铁锂动力电池为研究对象，采用锥形量热仪（CONE）对电池关键组件（含电解液的正极片、负极片及隔膜）的燃烧性和生烟性进行了研究，并运用层次分析法（analytic hierarchy process，AHP）综合评价了不同衰退状态电池组件的火灾危险性。结果表明，随着电池容量保持率的下降，电池组件中负极的有效燃烧热值有所下降，并且电池组件的CO₂产率和总生烟量逐渐降低；容量保持率100%~85%的电池组件的归一化危险性指数要明显大于75%~65%的电池组件。

关键词: 磷酸铁锂电池, 锥形量热仪, 危险性评价, 层次分析法(AHP), 火灾危险指数

Abstract: In this paper, four kinds of aging states, capacity retention ratio (CRR) of 100%, 85%, 75% and 65% lithium ion phosphate power battery were selected as the research objects. The combustibility and smoke generation of key components of the battery (positive, negative and separator, all containing electrolyte) were studied by cone calorimeter. The fire risk assessment index system of batteries with different aging states was established by using AHP (analytic hierarchy process). The results show that the effective combustion heat value of the negative electrode decreases as the battery CRR declines, And the yield of CO₂ and total smoke production of battery components gradually decrease. The normalized risk index of battery components with a capacity retention rate of 100%~85% is significantly higher than that of battery components with a capacity retention rate of 75%~65%.

Key words: lithium iron phosphate power battery, cone calorimeter, risk assessment, analytic hierarchy process (AHP), fire hazard index

中图分类号:

X932

高飞, 王康康, 田宝贵, 陈庆涛, 杨凯, 苏镇西, 张明杰, 刘伟, 范茂松, 刘皓, 耿萌萌, 王凯丰. 不同衰退状态磷酸铁锂动力电池组件的燃烧性及危险性研究[J]. 储能科学与技术, 2019, 8(6): 1176-1181.

GAO Fei, WANG Kangkang, TIAN Baogui, CHEN Qingtao, YANG Kai, SU Zhenxi, ZHANG Mingjie, LIU Wei, FAN Maosong, LIU Hao, GENG Mengmeng, WANG Kaifeng. Combustibility and hazard of lithium iron phosphate power battery components in different aging states[J]. Energy Storage Science and Technology, 2019, 8(6): 1176-1181.

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不同衰退状态磷酸铁锂动力电池组件的燃烧性及危险性研究

Combustibility and hazard of lithium iron phosphate power battery components in different aging states

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