2023.3Vol.47No.3研究与设计收稿日期：2022-08-29作者简介：苏晓倩(1986—)，女，天津市人，高级工程师，主要研究方向为化学电源。锂原电池高温贮存寿命及其衰降机理研究苏晓倩1，陈昱霖1，刘慕霄2，孟云1，张洋1(1.中国电子科技集团公司第十八研究所，天津300384，2.海军装备部驻天津地区第二军事代表室，天津300061)摘要：开展了锂氟化碳电池(Li/CFx)和锂氟化碳/二氧化锰复合电池(Li/CFx-MnO2)高温贮存的研究，分别考察了不同电池体系、不同贮存温度、不同电池封装形式对电池高温性能方面的影响，发现锂氟化碳电池高温贮存性能优于锂氟化碳/二氧化锰复合电池，且圆柱形电池贮存性能优于软包装电池。同时通过交流阻抗、电池DPA分析等对电池贮存后容量衰降的原因进行了分析，明确了其容量衰降的原因，为锂氟化碳电池的贮存模型开发、贮存性能改善提供了理论基础。关键词：锂氟化碳电池；高温贮存；失效机理中图分类号：TM911文献标识码：A文章编号：1002-087X(2023)03-0302-06DOI:10.3969/j.issn.1002-087X.2023.03.007StudyonhightemperaturestoragelifeanddegradationmechanismoflithiumprimarybatterySUXiaoqian1,CHENYulin1,LIUMuxiao2,MENGYun1,ZHANGYang1(1.TianjinInstituteofPowerSources,Tianjin300384,China;2.TheSecondMilitaryRepresentativeOfficeoftheNavalEquipmentDepartmentinTianjin,Tianjin300061,China)Abstract:Thehigh-temperaturestorageoflithiumcarbonfluoridebattery(Li/CFx)andlithiumcarbonfluoride/manganesedioxidecompositebattery(Li/Li/CFx-MnO2)werestudied.Theeffectsofdifferentbatterysystems,storagetemperaturesandbatterypackagingformsonthehigh-temperatureperformanceofthebatterywereinvestigatedrespectively.Itwasfoundthatthehigh-temperaturestorageperformanceoflithiumcarbonfluoridebatterywasbetterthanthatoflithiumcarbonfluoride/manganesedioxidecompositebattery,andthestorageperformanceofcylindricalbatterywasbetterthanthatofsoftpackagingbattery.Atthesametime,throughtheanalysisofACimpedanceandbatteryDPA,thecausesofbatterycapacitydeclineafterstoragewereanalyzed,andthecausesofbatterycapacitydeclinewereclarified,whichprovidedatheoreticalbasisforthedevelopmentofstoragemodelandtheimprovementofstorageperformanceoflithiumcarbonfluoridebattery.Keywords:lithi...
