[2001 JPS] Development of long life lithium ion battery for power storage.pdf

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1、JournalofPowerSources101@2001)53±59Developmentoflonglifelithiumionbatteryforpowerstoragea,*bbMasatoshiMajima,SatoshiUjiie,ErikoYagasaki,aaKeijiKoyama,ShinjiInazawaaOsakaR&DLaboratory,SumitomoElectricIndustriesLtd.,1-1-3ShimayaKonohana-ku,Osaka554-0024,JapanbTechn

2、icalResearchCenter,TheKansaiElectricPowerCompanyInc.,3-11-20Nakoji,Amagasaki,Hyogo661-0974,JapanReceived12September2000;receivedinrevisedform20December2000;accepted17January2001AbstractWiththeaimofdevelopinglithiumionbatterieswithalonglifeandhighef®ciencyforpower

3、storage,weexperimentallyevaluatedcombinationsofcathodeandanodeactivematerials,inwhichbatteriesareabletoobtainover4000cyclesor10yearsoflife.Anaccelerationmethodwasevaluatedusingcoincells.Wefoundthatchangingthecurrentdensitywaseffectiveforevaluatingbatterylife,sinc

4、ethelogarithmofthecyclelifeshowedalinearrelationshiptocurrentdensity.Basedonthecurrentdensityincreasingmethod,variouscombinationsofcathodeandanodeactivematerialsweretested.ThecellsystemofLiCoO2/Li4/3Ti5/3O4clearlyshowedalonglifeofabout4000cycles.Theenergydensityo

5、fthecellusingtheLi4/3Ti5/3O4anodeisobviouslysmallerthanthatusingagraphiteanode,thecellwithLi4/3Ti5/3O4anodewasthoughttohavesomemeritespeciallyinthelarge-scale-layer-builttypebatterybytheapplicabilityoftheAlanodecollectorandalightweightbatterycase.#2001ElsevierSci

6、enceB.V.Allrightsreserved.Keywords:Lithiumionbattery;Powerstorage;LiCoO2;LiMn2O4;Li4/3Ti5/3O41.Introductionef®ciency.Throughacomprehensivesurveyofelectrodeactivematerialspresentlyavailableinthemarket,testInpreviouspapers[1±3],theauthorsreportedstudiesbatteriesusi

7、ngLiCoO2andLi4/3Ti5/3O4orPCG@arti®cialperformedforthedevelopmentofa1kWhclasslithiumgraphite)asthecathodeandanodeactivematerials,respec-ionbatteryforpowerstorage,usingLiCoO2andnaturaltively,with1MLiPF6dissolvedinEC/DECasanelectro-graphiteascathodeandanodeactivemat

8、erials,respectively,lyte,wereconstructed.Accelerationtestsweredonetowith1MLiPF6dissolvedinethylenecarbonate/diethyldeterminethebatterylife,anditwasfoundthatLiC