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利用具有低共熔组成的LiOH-LiNO3混合锂盐体系,与高密度前驱体混合,经3阶段恒温烧结制备出高密度锂离子电池正极材料LiNi0.8Co0.15Mo0.05O2.X射线衍射分析表明合成的材料具有规整的层状α-NaFeO2结构.SEM显示材料的颗粒均匀.电性能测试表明,在0.2C放电倍率和3.0~4.3V的电压范围内,LiNi0.8Co0.15Mo0.05O2首次放电比容量达175mAh/g,且具有良好的循环性能.

参考文献

[1] Cho Jaephil;Jung HyunSook .Electrochemical Properties and Thermal Stability of Li_aNi_(1-x)Co_xO_2 Cathode Materials[J].Journal of the Electrochemical Society,2000(1):15-20.
[2] Sivaprakash S;Majumder S B;Nieto S et al.Crystal chemistry modification of lithium nickel cobalt oxide cathodes for lithium ion rechargeable batteries[J].Journal of Power Sources,2007,170:433.
[3] Li Xinlu;Kang Feiyu;Shen Wanci et al.Improvement of structural stability and electrochemical activity of a cathode material LiNi0.7Co0.3O2 by chlorine doping[J].Electrochimica Acta,2007,53(04):1761.
[4] 徐秋红,曹允洁,常照荣.锂离子电池正极材料LiCoO2的制备及电化学性能测试[J].河南师范大学学报(自然科学版),2006(04):87-91.
[5] J. Kim;K. Amine .The effect of tetravalent titanium substitution in LiNi_(1-x)Ti_xO_2 (0.025 ≤ x ≤ 0.2) system[J].Electrochemistry communications,2001(2):52-55.
[6] Stoyanova R.;Kuzmanova E.;Alcantara R.;Lavela P.;Tirado JL.;Zhecheva E. .Aluminium coordination in LiNi1-yAlyO2 solid solutions[J].Solid state ionics,2000(1/4):1-10.
[7] Subramanian V.;Fey GTK. .Preparation and characterization of LiNi0.7Co0.2Ti0.05M0.05O2 (M=Mg, Al and Zn) systems as cathode materials for lithium batteries[J].Solid state ionics,2002(3/4):351-358.
[8] Sivaprakash S;Majumder S B;Nieto S et al.Crystal chemistry modification of lithium nickel cobalt oxide cathodes for lithium ion rechargeable batteries[J].Journal of Power Sources,2007,170(02):433.
[9] 汤宏伟,朱志红,常照荣.熔融盐法合成球形锂离子电池正极材料LiNi0.8Co0.2O2[J].河南师范大学学报(自然科学版),2008(04):89-92.
[10] Yuan Gao;M. V. Yakovleva;W. B. Ebner .Novel LiNi_(1-x) Ti_(x/2)Mg_(x/2)O_2 Compounds as Cathode Materials for Safer Lithium-Ion Batteries[J].Electrochemical and solid-state letters,1998(3):117-119.
[11] Cho J;Kim G;Lim H S .Effect of preparation methode of LiNi1-xCoxO2 cathode materials on their chemical structure and electrode performance[J].Journal of the Electrochemical Society,1999,146(10):3571.
[12] Na SH;Kim HS;Moon SI .The effect of Si doping on the electrochemical characteristics of LiNixMnyCo((1-x-y))O-2[J].Solid state ionics,2005(3/4):313-317.
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