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铷掺杂三元正极材料Li1-xRbxNi0.4Co0.2Mn0.4O2的制备及其电化学性能

  • 李妍 汪小平 张维民 何雨石 马紫峰
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  • 1. 上海交通大学化学化工学院,上海电化学能源器件工程技术研究中心,上海 200240;2. 上海铷戈科技发展有限公司,上海 200433

收稿日期: 2017-08-15

  修回日期: 2017-09-07

  网络出版日期: 2018-04-10

Synthesis and Electrochemical Characterization of Li1?xRbxNi0.4Co0.2Mn0.4O2 Cathode Materials

  • Yan LI Xiaoping WANG Weimin ZHANG Yushi HE Zifeng MA
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  • 1. Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Ruge Technology Development Co., Ltd., Shanghai, 200433, China

Received date: 2017-08-15

  Revised date: 2017-09-07

  Online published: 2018-04-10

摘要

采用共沉淀法制备了三元材料LiNi0.4Co0.2Mn0.4O2,掺杂不同比例铷进行改性,对其进行了结构表征,考察了其电化学性能. 结果表明,Li0.97Rb0.03Ni0.4Co0.2Mn0.4O2样品的结晶度较好,铷掺杂起到了稳定三元材料晶体结构的作用,有效改善了材料的电化学性能,5C倍率下放电比容量达130 mA?h/g.

本文引用格式

李妍 汪小平 张维民 何雨石 马紫峰 . 铷掺杂三元正极材料Li1-xRbxNi0.4Co0.2Mn0.4O2的制备及其电化学性能[J]. 过程工程学报, 2018 , 18(2) : 422 -426 . DOI: 10.12034/j.issn.1009-606X.217296

Abstract

LiNi0.4Co0.2Mn0.4O2 was prepared by coprecipitation method and different proportions of rubidium cations were doped into the materials to enhance the performance. The materials were characterized and the electrochemical performance was investigated. The results showed that the optimized formula is Li0.97Rb0.03Ni0.4Co0.2Mn0.4O2, which obtained an improved electrochemical performance. The incorporation of rubidium can stabilize the crystal structure. The specific reversible capacity of Li0.97Rb0.03Ni0.4Co0.2Mn0.4O2 electrode can still maintain about 130 mA?h/g at 5C.

参考文献

[1]Tarascon J. M., Armand M...Issues and challenges facing rechargeable lithium batteries[J].[J].Nature, 2001, 414(6861):359-367
[2] John B, Goodenough, Park K S. .The Li-ion Rechargeable Battery: A Perspective[J].2013, 135: 1167-1176.[J].J. Am. Chem. Soc., 2013, 135(4):1167-1176
[3] Hu Z Q, Deng Z J, Wei Q P, et al.Roles of Al-doped ZnO (AZO) modification layer on improving electrochemical performance of LiNi1/3Co1/3Mn1/3O2 thin film cathode[J]. [J]., 2017, 96:1-12
[4] Duan J G, Wu C, Cao Y B, et al.Enhanced electrochemical performance and thermal stability of LiNi0.80Co0.15Al0.05O2 via nano-sized LiMnPO4 coating[J]. [J].Electrochim. Acta, 2016, 221:14-22
[5] Arumugam R S, Ma L, Li J, et al.Special synergy between electrolyte additives and positive electrode surface coating to enhance the performance of Li[Ni0.6Mn0.2Co0.2]O2/graphite cells[J].[J].J. Electrochem. Soc., 2013, 163(13):A2531-A2538
[6] Kong J Z, Chong R, Tai G A, et al.Ultrathin ZnO coating for improved electrochemical performance of LiNi0.5Co0.2Mn0.3O2 cathode material[J]. [J].J. Power Sources, 2014, 266(266):433-439
[7]Hwang B J, Tsai Y W, Chen C H, et al.Influence of Mn content on the morphology and electrochemical performance of LiNi1-x-yCoxMnyO2 cathode materials[J].J. Mater. Chem., 2003, 13(8):1962-1968
[8]Shaju K M, Subba Rao G V, Chowdari B V R.Performance of layered Li(Ni13Co13Mn13)O2 as cathode for Li-ion batteries[J].Electrochim. Acta, 2002, 48(2):145-151
[9] Kim U H, Lee E J, Chong S Y, et al.Compositionally graded cathode material with long-term cycling stability for electric vehicles application[J].[J].Adv. Energy Mater, 2016, 6(5):1601417-1601424
[10]Zhang G Q, Han E S, Zhu L Z, et al.Synthesis and electrochemical properties of Li(Ni0.56Co0.19Mn0.24Al0.01)1-yAlyO2 as cathode material for lithium-ion batteries[J].[J]., 2017, :1-9
[11]Zhang Y, Wang Z B, Lei J, et al.Investigation on performance of Li(Ni0.5Co0.2Mn0.3)1-xTixO2 cathode materials for lithium-ion battery[J].[J].Ceram. Int., 2015, 41(7):9069-9077
[12]Ding Y H, Zhang P, Long Z L, et al.Morphology and electrochemical properties of Al-doped LiNi1/3Co1/3Mn1/3O2 nanofibers prepared by electrospinning[J]. [J].J. Alloys Compd, 2009, 487(1):507-510
[13]Park S H, Shin S S, Sun Y K.The effects of Na doping on performance of layered Li1.1-xNax[Ni0.2Co0.3Mn0.4]O2 materials for lithium secondary batteries[J]. [J].Mater. Chem. Phys., 2006, 95(2):218-221
[14]Li Q, Li G S, Fu C C, et al.K+-doped Li1.2Mn0.54Co0.13Ni0.13O2: a novel cathode material with an enhanced cycling stability for lithium-ion batteries[J]. [J].ACS Appl. Mater. Interfaces, 2014, 6(13):10330-10341
[15]Xie D J, Li G S, Li Q, et al.Improved cycling stability of cobalt-free Li-rich oxides with a stable interface by dual doping[J]. [J].Electrochim. Acta, 2016, 196:505-516
[16]Zhao R R, Yang Z L, Liang J X, et al.Understanding the role of Na-doping on Ni-rich layered oxide LiNi0.5Co0.2Mn0.3O2[J].[J].J. Alloys Compd. 2016, 689: 318-325., 2016, 689:318-325
[17]Lee E J, Chen Z H, Noh H J, et al.Developmen of microstrain in aged lithium transition metal oxides[J].[J].Nano Lett., 2014, 14(8):4873-4880
[18]Shi S J, Mai Y J, Tang Y Y, et al.Preparation and electrochemical performance of ball-like LiMn0.4Ni0.4Co0.2O2 cathode materials[J].[J].Electrochim. Acta., 2012, 77(9):39-46
[19]Zhang J, Lu Q W, Fang J H, et al.Polymide encapsulated lithium-rich cathode material for high voltage lithium-ion battery[J]. [J].ACS Appl. Mater. Interfaces., 2014, 6(20):17965-17973
[20]Hua W B, Zhang J B, Zheng Z, Liu W Y, et al.Na doped Ni-rich LiNi0.5Co0.2Mn0.3O2 cathode material with both high rate capability and high tap density for lithium ion batteries[J]. [J].Dalton Trans., 2014, 43(39):14824-14832
[21]Hua W B, Guo X D, Zheng Z, et al.Uncovering a facile large-scale synthesis of LiNi1/3Co1/3Mn1/3O2 nanoflowers for high power lithium-ion batteries[J]. [J].J. Power Sources., 2015, 275:200-206
[22]Kang K S, Meng Y S, Bréger J L, et al.Electrodes with high power and high capacity for rechargeable lithium batteries[J].[J].Science., 2006, 311(5763):977-980
[23]Wang D, Liu M H, Wang X Y, et al.Facile synthesis and performance of Na-doped porous lithium-rich cathodes for lithium ion batteries[J]. [J].RSC Adv., 2016, 6(62):57310-57319
[24]Wang X Y, Hao H, Liu J L, et al.A novel method for preparation of macroposous lithium nickel manganese oxygen as cathode material for lithium ion batteries[J]. [J].Electrochim. Acta., 2011, 56(11):4065-4069
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