|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
铝锂混合掺杂尖晶石相Li_(1+x)Al_yMn_(2-y)O_4材料结构性能的研究
, PP. 433-438
Keywords: 锂离子电池,LiMn2O4,掺杂,红外光谱
Abstract:
采用一种简单的合成工艺,将铝和锂混合掺入到主尖晶石相锰酸锂中,研究不同掺杂铝量对材料的初始容量及循环稳定性能的影响.结果表明同时掺杂铝锂的材料要比单独掺杂铝或锂的循环稳定性好.利用扫描电镜、粉末X_射线衍射仪、红外光谱仪对材料形貌及结构进行研究,结果表明所合成的掺杂铝锂材料颗粒细小、分布均匀,具有较好的结晶性能,较高的初始容量和良好的循环稳定性,其初始容量达119mAh/g,循环200次后容量仍然保持在106mAh/g
| [1] | XiaYongyao,ZhouYunhong,YoshioMasakiCapacityfadingoncyclingof4VLi/LiMn2O4[J].J.Elec trochem.Soc.,1997,144:2593～2600.
|
| [2] | GummowRJ ,KockAde,ThackerayMM .Improvedcapacityretentioninrechargeable4Vlithiumman ganeseoxide(spinel)cells[J].SolidstateIonics,1994,69:59～67.
|
| [3] | ThackerayMM ,Shao～HornY ,KahaianAJ .Structuralfatigueinspinelelectrodesinhighvoltage(4V)Li/LixMn2O4 cells[J].ElectrochemSolidStateLett.,1998,1:7～8.
|
| [4] | LeeJongH ,HongJinK ,JangDongH ,etal.DegradationmechanismsindopedspinelsofLiM0.05Mn1.95O4(M =Li,B ,Al,Co,andNi)forLisecondarybatteries[J].J .PowerSources,2000,89:7～14.
|
| [5] | AroraP ,PopovBN ,WhiteRE .Electrochemicalinvestigationsofcabalt_dopedLiMn2O4 ascathodematerialforlithium_ionbatteries[J].J .Electrochem.,Soc.,1998145:807～814.
|
| [6] | TarasconJM ,MckinnonWR ,CoowarF ,etal.SynthesisconditionsandoxygenstoichiometryeffectsonLiinsertionintothespinelLiMn2O4[J].J .Electrochem.Soc.,1994,141:1424～1431.
|
| [7] | VoglerC ,ButzA ,DittrichH ,etal.Electrochemicalandstructuralcomparisonofdopedlithiummanganesespinels[J].J.PowerSources1999,84:243～247.
|
| [8] | TarasconJM ,WangE ,ShokoohiF ,K .ThespinelphaseofLiMn2O4 asacathodeinsecondarylithiumcells[J].J .Electrochem.Soc.,1991,138:2859～2864.
|
| [9] | RobertsonAD ,LuSH ,HowardWF .M3+_modifiedLiMn2O4 spinelintercalationcathodesⅡElectro chemicalstabilizationbyCr3+[J].J .Electrochem.Soc.,1997,144:3500～3512.
|
| [10] | Wohifahrt_MehrensM ,ButzA ,OestenR .Theinfluenceofdopingontheoperationoflithiummanganeseoxidespinel[J].J.Electrochem.Soc.,1997,68:582～585.
|
| [11] | LiGuohua,IkutaH ,VchidaT ,WakiharaM .ThespinelphasesLiMyMn2yO4(M =Co,Cr,Ni)asthecath odeforrechargeablelithiumbatteries[J].J.Electrochem.Soc.,1996,143:178～182.
|
| [12] | AroraP .PopovBN ,WhiteRE .Electrochmicalinvestigatonsofcobalt_dopedLiMn2O4 ascathodematerialforlithium_ionbatteries[J].J .Electrochem.Soc.,1998,145:807～815.
|
| [13] | PereamuageD ,AbrahamKM .PreparationandelectrochemicalcharacterizationofoverlithiatedspinelLiMn2O4[J].J .Electrochem.Soc.,1998,145:1131～1136.
|
| [14] | WangGX ,BradhurstDH ,LiuHK ,etal.ImprovementofelectrochemicalpropertiesofthespinelLiMn2O4 usingaCrdopanteffect[J].SolidStateInics,1999,120:95～101.
|
| [15] | SongD ,IkutaH ,UchidaT ,WakiharaM .ThespinelphasesLiAlyMn2_yO4(y=0,1/12,1/9,1/6,1/3)andLi(Al,M )1/6Mn11/6O4(M =Cr,Co)asthecathodeforrechargeablelithiumbatteries[J].SolidStateInics,1999,117:151～156.
|
| [16] | OhzukuT ,KitagawaM ,HiraiT .ElectrochemistryofmanganesedioxideinlithiumnonaqueouscellⅢ.X_raydiffractionalstudyonthereductionofspinel_relatedmanganes4edioxide[J].E .J .Electrochem.Soc.,1990,137:769～775
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
