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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 预览

Combustibility and hazard of lithium iron phosphate power battery components in different aging states
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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。 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 CO 2 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 signi ficantly higher than that of battery components with a capacity retention rate of 75%~65%.
作者 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 GAO Fei;WANG Kangkang;TIAN Baogui;CHEN Qingtao;YANG Kai;SU Zhenxi;ZHANG Mingjie;LIU Wei;FAN Maosong;LIU Hao;GENG Mengmeng;WANG Kaifeng(State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems,China Electric Power Research Institute,Beijing 100192,China;School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;State Grid Anhui Electric Power CO.LTD,Hefei 230000,Anhui,China)
出处 《储能科学与技术》 CSCD 2019年第6期1176-1181,共6页 Energy Storage Science and Technology
基金 国家电网有限公司科技项目:大容量储能锂离子电池系统失控模拟仿真及评测技术研究(DG71-17-006)。
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 lithium iron phosphate power battery cone calorimeter risk assessment analytic hierarchy process(AHP) fire hazard index
作者简介 第一作者: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;联系人:田宝贵,从事锂离子电池安全性研究,E-mail:1159161562@qq.com;联系人: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;.
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