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用化学沉淀法(CP)合成出了锂离子电池正极材料前驱体.研究了干燥方式、反应物浓度、滤饼含水量等因素对前驱体组成及振实密度的影响.结果表明,干燥方式以及滤饼的含水量和NaOH浓度对产物的振实密度影响最大.最佳条件下可以得到振实密度为1.92g/cm2的产物.用此前驱体和LiNO3-LiOH低共熔盐制得的产物LiCoO2振实密度达到2.95g/cm3,高于球形LiCoO2(2.8g/cm3)正极材料.用此前驱体制得的LiCoO2正极材料I003/I104达到26.65,首次充放电比容量为157和151mAh/g.

参考文献

[1] 梅佳,钟盛文,张骞,何立强,王茹英,刘庆国.高性能LiCoO2的制备与性能表征[J].电源技术,2007(02):128-130.
[2] Broussely M .[J].Journal of Power Sources,1999,81-82:137-139.
[3] 郭鸣风;杨瑞敏;张泽波 等.[J].电化学,1995,1:70-71.
[4] 应皆荣,万春荣,姜长印.高密度球形LiCoO2的制备及性能研究[J].电源技术,2004(09):525-527.
[5] Alexander B;Oleg B;Pascal H .[J].Solid State Iomcs,2002,151(1-4):259-263.
[6] Liao Cheng-Lung;Lee Yueh-Hsun;Fung Kuan-Zong .[J].Journal of Alloys and Compounds,2007,436:303-308.
[7] He Ping;Wang Haoran;Qi Lu et al.[J].Journal of Power Sources,2006,158:529-534.
[8] Ying Jierong;Jiang Changyin;Wan Chunrong .[J].Journal of Power Sources,2004,138:271-273.1717-1719.
[9] 汤宏伟,朱志红,常照荣,陈中军.高密度锂离子正极材料前驱体Ni0.8Co0.2(OH)2的制备[J].功能材料,2007(10):1717-1719.
[10] Kato et al.[P].US Patent,No.6083642,2000.
[11] Casella I G;Guascito M R .[J].Journal of Electroanalytical Chemistry,1999,476:54-63.
[12] Desimoni E;Casella I G;Salvi A M .[J].Carbon,1992,30:521.
[13] Frost D C;McDowell C A;Woolsey I S .[J].Chemical Physics Letters,1972,17(03):320.
[14] Mitton D B;Walton J;Thompson G E .[J].Surface and Interface Analysis,1993,20:36.
[15] McIntyre N S;Cook M G .[J].Analytical Chemistry,1975,47:2208.
[16] Barr T L .[J].Journal of Physical Chemistry,1978,82(16):1801.
[17] Briggs D;Gibson V A .[J].CHEMICAL PHYSICS LETTERS,1974,25:493.
[18] Kim K S .[J].Physical Review,1975,11:2177.
[19] Cataldi T R I;Casella I G;Desimoni E .[J].Anal Chim Acts,1992,270:161.
[20] Rougier A.;Delmas C.;Gravereau P. .OPTIMIZATION OF THE COMPOSITION OF THE LI1-ZNI1+ZO2 ELECTRODE MATERIALS - STRUCTURAL, MAGNETIC, AND ELECTROCHEMICAL STUDIES[J].Journal of the Electrochemical Society,1996(4):1168-1175.
[21] Baker J;koksbang R;Saidi M Y .[J].Solid State Ionics,2005,89(1-2):25-35.
[22] Gao Y;Yakovleva M;Wang H H et al.[P].US Patent,No.6620400,2003.
[23] 刘景,温兆银,吴梅梅,顾中华,曹佳弟,林祖缓.LiCoO2正极材料的络合法合成及其电化学性能研究[J].无机材料学报,2002(06):1157-1162.
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