本文以水合氢氧化锂 (LiOH .H2 O)、水合硝酸锰 (Mn(No3) 2 .6H2 O) ,水合氯化锂 (LiCl.H2 O)为原料 ,用类溶胶 凝胶法制备了LiMn2 O4 δClδ,并且以此作正极进行了电化学测试 .结果表明 ,掺氯的尖晶石LiMn2 O4 正极材料具有优异的稳定性 ,且循环稳定后 ,容量几乎没有衰减 .
陈召勇
,
贺益
,
刘兴泉
,
李志结
,
于作龙
. 类溶胶-凝胶法制备LiMn_2O_(4-δ)Cl_δ正极材料[J]. 电化学, 2001
, 7(1)
: 132
-135
.
DOI: 10.61558/2993-074X.1419
LiMn 2O 4 δ Cl δ was synthesized by like sol gel methode, with calculated LiOH.H 2O, Mn(No 3) 2.6H 2O and LiCl.H 2O, and made electrochemical test with these compounds as positive materials. Result demostrated that LiMn 2O 4 δ Cl δ cathode material has exellent stability and nearly no capacity loss after reaching stability.
[1] P .Arora ,B .N .Popov ,R .E .White .Electrochemicalinvestigationsofcobalt dopedLiMn2 O4 ascathoedma terialsforlithium ionbatteries[J].J .Electrochem .Soc .,1998,145,80 7.
[2 ] J .M .Tarascon ,D .Guyomand .TheLi1+xMn2 O4 /Crocking chairsystem :areview[J].Electrochemica .Ac ta .,1993,38,12 2 1 12 31.
[3] A .D .Roberson ,S .H .Lu ,W .F .Howard .M3+ modifiedLiMn2 O4 spinelintercalationcathodes[J].J.Elec trochem .Soc .,1999,146 ,1351.
[4 ] N .Hayashi,H .ikuta ,M .Wakihara .CathodeofLiMgyMn2 yO4 andLiMgyMn2 yO4 spinelphasesforlithiumsecondarybatteries[J].J .Electrochem .Soc .,1998,146 ,1351.
[5] P .Arora ,B .N .Popov ,R .E .White .Electrochemicalinvestigationsofcobalt dopedLiMn2 O4 ascathodema terialsforlithium ionbatteries[J].J .Electrochem .Soc .,1998,145,84 7.
[6 ] J .R .Dahn ,Taozheng ,C .L .Thomas .StructureandelectrochemistryofLiCrxMn2 xO4 for 1.0 .x .1.5[J].J .Electrochem .Soc .,1998,145,851.
[7] Qimingzhong ,ArmanBonakarpour,Meijiezhang ,YuanGao .synthesisandelectrochemistryofLiNixMn2 xO4 [J].J .electrochem .Soc .,1997,144 ,2 0 5.
[8] YongyaoXia ,YasufumiHideshima ,NaokiKumada .StudiesonLi Mn Ospinelsystemasacathodefor 4vlithiumbatteries[J].JournalofPowerSources74 ,1998,2 4 2 8.
[9] M .R .Palacin ,F .LeCras,L .Seguin .Insitustrucualstudyof 4v rangelithiumextration/insertioninflu oeine substitutedLiMn2 O4 [J].JournalofSolidStateChemistry 144 ,1999,36 1 371.
[10 ] G .G .Amatucci,N .Pereira ,T .Zheng .EnhancementoftheelectrochemicalpropertiesofLi1Mn2 O4 throughchemicalsubstitution[J].JournalofPowerSources81 82 ,1999,39 4 3.
[11] ZhaoyongChen ,XinquanLiu ,ZuolongYu .ElectrochemicalpropertiesofspinelLiMn2 O4 δFδforcathodematerialsofsecondaryLithium ionbatter[J].chinesechemicalletters ,2 0 0 0 ,11,4 55 4 58.
[12 ] W .Liu ,K .Kowal,G .C .Farrington .MechanismoftheelectrochemicalinsertionoflithiumintoLiMn2 O4spinels[J].J .Electrochem .Soc .,1998,145,4 59.