Capacity Fading Analyses of LiNi _0.5Co _0.2Mn _0.3O₂and LiNi _0.5Co _0.2Mn _0.3O₂/LiFePO₄ Cathode Materials for Lithium-Ion Battery

Authors

Yi HU, chool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou510006, Guangdong, China;Follow
Xiang-zhu HE, chool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou510006, Guangdong, China;
Zhong-de DENG, chool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou510006, Guangdong, China;
Ling-yong KONG, Shenzhen Dynanonic Co., Ltd., SShenzhen, Guangdong 518055, China
Wei-li SHANG, Shenzhen Dynanonic Co., Ltd., SShenzhen, Guangdong 518055, China

Corresponding Author

Yi HU(huyi869607143@163.com)

Abstract

The LiNi _0.5Co _0.2Mn _0.3O₂/LiFePO₄ (NMC532/LFP) composite cathode material for lithium-ion battery was prepared by wet ball-milling. The capacity fading behaviors of LiNi _0.5Co _0.2Mn _0.3O₂ (NMC532) and LiNi _0.5Co _0.2Mn _0.3O₂/LiFePO₄ (NMC532/LFP) were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), charge/discharge and electrochemical impedance spectroscopy (EIS) tests. The results indicated that the capacity retention values of NMC532/LFP were 97.80% and 86.48%, respectively, after 50 cycles and 60℃ high temperature storage. The NMC532/LFP exhibited better cycle performance and high temperature storage performance. Charge transfer impedance (Rct) values increased obviously after 50 cycles and high temperature storage, in particular, the R_ct value of NMC532/LFP was smaller. The I(003)/I(104) values of NMC532 and NMC532/LFP were reduced, while that of NMC532/LFP became larger, illustrating the cation mixed phenomenon was improved. There were no apparent particle cracking and particle fracture phenomena observed after 50 cycles, however, some NMC532 powder particles were obtained. The cracks were obaerved on the surface of NMC532 particles and among particles after high temperature storage, and the slight pulverization occurred on the surface of NMC532/LFP particles. Less ordered material structure, higher degree of cation mixing and increased charge transfer resistance might be mainly responsible for the capacity fading behaviors of NMC532 and NMC532/LFP.

Graphical Abstract

Keywords

wet ball-milling, Li-ion battery, composite cathode material, LiNi 0.5Co 0.2Mn 0.3O2/LiFePO4, capacity fading mechanism

DOI Link

https://doi.org/10.13208/j.electrochem.161229

Publication Date

2017-12-28

Online Available Date

2017-02-23

Revised Date

2017-02-20

Received Date

2016-12-29

Recommended Citation

Yi HU, Xiang-zhu HE, Zhong-de DENG, Ling-yong KONG, Wei-li SHANG. Capacity Fading Analyses of LiNi _0.5Co _0.2Mn _0.3O₂and LiNi _0.5Co _0.2Mn _0.3O₂/LiFePO₄ Cathode Materials for Lithium-Ion Battery[J]. Journal of Electrochemistry, 2017 , 23(6): 161229.
DOI: 10.13208/j.electrochem.161229
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss6/15

References

[1] Andreas K, Peter A, Margret W M. Origin of the synergetic effects of LiFe_0.3Mn_0.7PO₄€“spinel blends via dynamic in situ X-ray Diffraction measurements[J]. Journal of The Electrochemical Society,2016,163(9): A1936-A1940.

[2] Takeshi K, Norihiro K, Yo K, et al. A method of separating the capacities of layer and spinel compounds in blended cathode[J]. Journal of Power Sources,2014,245:1-6.

[3] Ren X Z(任祥忠), Liu T(刘涛), Sun L N(孙灵娜), et al. Preparation and Electrochemical Performances of Li_1.2Mn_0.54-xNi_0.13Co_0.13Zr_xO₂ Cathode Materials for Lithium-Ion Batteries[J].Acta Physico-Chimica Sinica(物理化学学报),2014,30(9),1641-1649.

[4] Wang J, He X, Paillard E, et al. Lithium- and Manganese-Rich Oxide Cathode Materials for High-Energy Lithium Ion Batteries[J]. Advanced Energy Materials,2016,6:1-17.

[5] Hashem A M A, Abdel-Ghany A E, Eid A E, et al. Study of the surface modification of LiNi_1/3Co_1/3Mn_1/3O₂ cathode material for lithium ion battery[J]. Journal of Power Sources,2011,196(20): 8632-8637.

[6] Rao C V, Reddy A L M, Ishikawa Y, et al. LiNi_1/3Co_1/3Mn_1/3O₂-graphene composite as a promising cathode for lithium-ion batteries[J]. ACS Applied Materials and Interfaces,2011,3(8):2966-2972.

[7] Wu K C, Wang F, Gao L L, et al. Effect of precursor and synthesis temperature on the structural and electrochemical properties of Li(Ni_0.5Co_0.2Mn_0.3)O₂[J]. Electrochimica Acta,2012,75:393-398.

[8] Xu J G, Deshpande R D, Pan J, et al. Electrode Side Reactions, Capacity Loss and Mechanical Degradation in Lithium-Ion Batteries[J]. Journal of The Electrochemical Society,2015,162(10):A2026-A2035.

[9] Noh H J, Youn S, Yoon C S, et al. Comparison of the structural and electrochemical properties of layered Li[Ni_xCo_yMn_z]O₂(x=1/3,0.5,0.6,0.7,0.8 and 0.85) cathode material for lithium ion battery[J]. Journal of Power Sources,2013,233:121-130.

[10] Fulvio P F, Veith G M, Adcock J L, et al. Fluorination of €œbrick and mortar€ soft-templated graphitic ordered mesoporous carbons for high power lithium-ion battery[J]. Journal of Materials Chemistry A,2013(1):9414-9417.

[11] Ohzuku T, Ueda A, Nagayama Y, et al. Comparative study of LiCoO₂, LiNi_1/2Co_1/2O₂ and LiNiO₂ for 4-volt secondary lithium cells[J]. Electrochimica Acta, 1993,38:1159-1167.

[12] Whitfield P S, Davidson I J, Cranswick L M D, et al. Investigation of possible superstructure and cation disorder in the lithium battery cathode materical Li(Mn_1/3Ni_1/3Co_1/3)O₂ using neutron and anomalous dispersion powder diffraction [J]. Solid State Ionics,2005,176:463-471.

[13] Padhi K A, Nanjundawamy K S, Goodenough J B. Phospho-olivine as positive electrode materials for rechargeable lithium batteries [J]. Journal of The Electrochemical Society,1997,144:1188-1194.

[14] Verma P, Maire P, Novák P. A review of the features and analyses of the solid electrolyte interphase in Li-ion batteries[J].Electrochimica Acta,2010,55(22):6332-6341.

[15] Li X Y, Choe S Y, Joe W T. A reduced order electrochemical and thermal model for a pouch type lithium ion polymer battery with LiNi_xMn_yCo_1-x-yO₂/LiFePO₄ blended cathode[J]. Journal of Power Sources,2015,294:545-555.

[16] Nan C Y, Lu J, Li L H, et al. Size and shape control of LiFePO₄ nanocrystals for better lithium ion battery cathode materials [J]. Nano Research,2013,6(7),469-477.

[17] Zhao X, Zhuang Q C, Wu C, et al. Impedance Studies on the Capacity Fading Mechanism of Li(Ni_0.5Co_0.2Mn_0.3)O₂ Cathode with High-Voltage and High-Temperature[J]. Journal of The Electrochemical Society,2015,162(14):A2770-A2779.

[18] Li J(李佳), Xie X H(谢晓华), Xia B J(夏保佳), et al. Fading mechanisms of a graphite/Li(Ni_1/3Co_1/3Mn_1/3)O₂ cell after storage[J]. Battery Bimonthly(电池),2011,41(6):293-296.

[19] Hayashi T, Okada J, Toda E, et al. Degradation Mechanism of LiNi_0.82Co_0.15Al_0.03O₂ Positive Electrodes of a Lithium-Ion Battery by a Long-Term Cycling Test[J]. Journal of The Electrochemical Society,2014,161(6):A1007-A1011.

[20] Agubra V A, Fergus J W, Fu R J, et al. Analysis of effects of the state of charge on the formation and growth of the deposit layer on graphite electrode of pouch type lithium ion polymer batteries[J]. Journal of Power Sources,2014,270:213-220.

[21] Li Y, Bettge M, Polzin B, et al. Understanding long-term cycling performance of Li_1.2Ni_0.15Mn_0.55Co_0.1O₂-graphite lithium-ion cells[J]. Journal of The Electrochemical Society,2013,160(5):A3006-A3019.

[22] Mohanty D, Li J L, Nagpure S C, et al. Understanding the structure and structural degradation mechanisms in high-voltage, lithium-manganese-rich lithium-ion battery cathode oxides: A review of materials diagnostics[J]. MRS Energy＆Sustainability:A Review Journal,2015,16:1-24.

[23] Sun G H, Sui T, Song B H, et al. On the fragmentation of active material secondary particles in lithium ion battery cathodes induced by charge cycling[J]. Extreme Mechanics Letters,2016,9:449-458.

[24] Li J, Downie L E, Ma L, et al. Study of the Failure Mechanisms of LiNi_0.8Mn_0.1Co_0.1O₂ Cathode Material for Lithium Ion Batteries[J]. Journal of The Electrochemical Society,2015,162(7):A1401-A1408.

[25] Song H G, Park Y J. LiLaPO₄-coated Li[Ni_0.5Co_0.2Mn_0.3]O₂ and AlF₃-coated Li[Ni_0.5Co_0.2Mn_0.3]O₂ blend composite for lithium ion batteries[J]. Materials Research Bulletin,2012,47:2843-2846.

[26] Zhuang Q C, Wei T, Du L L, et al. An Electrochemical Impedance Spectroscopic Study of the Electronic and Ionic Transport Properties of Spinet LiMn₂O₄[J]. J. Physical Chemistry C,2010,114(18),8614-8621.

[27] Qiu X Y, Zhuang Q C, Zhang Q Q, et al. Electrochemical and electronic properties of LiCoO₂ cathode investigated by galvanostatic cycling and EIS[J]. Phys. Chem. Chem. Phys.,2012,14(8),2617-2630.

[28] Yoshida T, Takahashi M, Morikawa S, et al. Degradation Mechanism and Life Prediction of Lithium-Ion Batteries[J]. Journal of The Electrochemical Society,2006,153(3):A576-A582.

[29] Liu W(刘文), Wang M(王苗), Chen J T(陈继涛), et al. Synthesis of LiNi_0.5Co_0.2Mn_0.3O₂ for Lithium Ion Batteries and the Mechanism of Capacity Fading at High Temperature[J]. Journal of Electrochemistry(电化学),2012,18(2):118-124.

[30] Yang Z X, Song Z L, Chu G, et al. Surface modification of LiCo_1/3Ni_1/3Mn_1/3O₂ with CoAl-MMO for lithium-ion batteries [J]. Journal of Materials Science, 2012, 47: 4205-4209.

[31] Jung S K, Gwon H, Hong J, et al. Understanding the Degradation Mechanisms of LiNi_0.5Co_0.2Mn_0.3O₂ Cathode Material in Lithium Ion Batteries[J]. Advanced Energy Materials,2014,4:1-7.

[32] Hausbrand R, Cherkashinin G, Ehrenberg H, et al. Fundamental degradation mechanisms of layered oxide Li-ion battery cathode materials:Methodology, insights and novel approaches[J]. Materials Science and Engineering B,2015,192:3-25.

[33] Wu L M, Xiao X H, Wen Y H, et al. Three-dimensional finite element study on stress generation in synchrotron X-ray tomography reconstructed nickel-manganese-cobalt based half cell[J]. Journal of Power Sources,2016,336:8-18.