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Abstract

The spinel Li intercalation compound LiMn 2O 4 was prepared and studied using ac impedance and cyclic voltammogram techniques. It was first discussed that the impedance behaviors of LiMn 2O 4 electrode varied as lithium ion was intercalated in or out the electrode with the help of fractal theory. The Li reversible behaviors in LiMn 2O 4 electrode were shown by the cyclic voltammogram results.

Keywords

Spinel LiMn 2O 4, Lithium battery, Cyclic voltammogram, Ac impedance, X ray

Publication Date

1997-02-28

Online Available Date

1997-02-28

Revised Date

1997-02-28

Received Date

1997-02-28

References

1FaulI,KnightJ.Lithiumrechargeablebateries:Areviewofrecenttrends.ChemandInd,1989,24:8202TarasconJM,McKinnonWR,CoowarF,BowmerTN,AmatucciG,GuyomardD.SynthesisconditionsandoxygenstoichiometryefectsonLiinsertionintothespinelLiMn2O4.J.ElectrochemSoc.,1994,141:14213RossowMH,DeKockA,PicciotoLADe,ThackerayMM,DavidWIF,IbersonRM.Structuralas-pectsoflithiummanganese-oxideelectrodesforrechargeablelithiumbateries.MaterResBul,1990,25:1734TarasconJM,GuyomardD.Limetal-freerechargeablebateriesbasedonLi1-XMn2O4cathodes(0≤x≤1)andcarbonanodes.J.ElectrochemSoc.,1991,138:28645GuyomardD,TarasconJM.Limetal-freerechargeableLiMn2O4/carboncels:theirunderstandingandop-timization.J.ElectrochemSoc.,1992,139:9376BrucePG,Lisowska-OleksiakA,SaidiMY,VicentCA.Vacancydifusionintheintercalationelectrodelithiumnickeloxide(Li1-XNiO2).SolidStateIonics,1992,57:2537HildebrandFB.AdvancedCalculusforApplication(PrenticeHal.EnglewoodClifs).1962:513

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