Preparation and properties of spherical LiMnPO4/C cathode materials by spray drying method

  • Kai Zhang ,
  • Ao Jiang
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  • 1. Department of Architecture and Environmental Engineering,Sichuan Vocational Technical College,Suining 629000,China
    2. College of Materials and Chemistry and Chemical Engineering,Chengdu University of Technology

Received date: 2020-08-06

  Online published: 2021-01-08

Abstract

One-time spray-drying method was used to prepare spherical LiMnPO4/C cathode materials with lithium hydroxide,manganese acetate,NH4H2PO4 and polyethylene glycol as raw materials.The effect of calcination temperature on the morpho-logy,structure and electrochemical performance of spherical LiMnPO4/C samples was studied.Its structure and morphology were characterized by X-ray diffraction(XRD)and field emission scanning electron microscopy(SEM).The morphology and prechemical properties of LiMnPO4/C obtained after calcination at different temperatures are quite different.The results showed that the spherical LiMnPO4/C calcined at 700 ℃ had olivine-type crystal structure,and it showed a spherical shape composed of one-dimensional nano particles with a diameter of about 50 nm under SEM.The specific discharge capacity of this sample reached 148 mA·h/g for the first time at a rate of 0.1C at room temperature.After 80 cycles,the specific discharge capacity was still around 140 mA·h/g,and the capacity retention rate was 94.6%.

Cite this article

Kai Zhang , Ao Jiang . Preparation and properties of spherical LiMnPO4/C cathode materials by spray drying method[J]. Inorganic Chemicals Industry, 2021 , 53(1) : 54 -58 . DOI: 10.11962/1006-4990.2020-0101

References

[1] Delacourt C, Laffont L, Bouchet R, et al. Toward understanding of electrical limitations(electronic,ionic) in LiMPO4(M=Fe,Mn) el-ectrode materials[J]. Journal of the Electrochemical Society, 2005,152(5):A913-A921.
[2] Padhi A K, Nanjundaswamy K S, Goodenough J B. Phospho-olivines as positive-electrode materials for rechargedeadle lithiu batteries[J]. Journal of the Electrochemical Society, 1997,144(4):1188-1194.
[3] Yang C, Wang X, Liu G, et al. One-step hydrothermal synjournal of Ni-Co sulfide on Ni foam as a binder-free electrode for lithium-sulfur batteries[J]. Journal of Colloid and Interface Science, 2020,565(1):378-387.
[4] Padhi A K, Nanjundaswamy K S, Masquelier C, et al. Effect of struc-ture on the Fe2+/Fe3+ redox couple in iron phosphates[J]. Journal of the Electrochemical Society, 1997,144(5):1609-1613.
[5] Yin S C, Grondey H, Strobel P, et al. Electrochemical property:St-ructure relationships in monoclinic Li3-yV2(PO4)3[J]. ChemInform, 2003,125(34):10402-10411.
[6] Deng C, Zhang S, Ma L, et al. Effects of precipitator on the morpho-logical,structural and electrochemical characteristics of Li[Ni1/3Co1/3Mn1/3]O2 prepared via carbonate co-precipitation[J]. Jo-urnal of Alloys and Compounds, 2011,509(4):1322-1327.
[7] Yang S Y, Wang X Y, Yang X K, et al. Influence of Li source on tap density and high rate cycling performance of spherical Li[Ni1/3Co1/3Mn1/3]O2 for advanced lithium-ion batteries[J]. Journal of Solid State Electrochemistry, 2012,16(3):1229-1237.
[8] Wang L, Zhang L, Lieberwirth I, et al. A Li3V2(PO4)3/C thin film with high rate capability as a cathode material for lithium-ion batteries[J]. Electrochemistry Communications, 2010,12(1):52-55.
[9] Malik R, Burch D, Bazant M, et al. Particle size dependence of the ionic diffusivity[J]. Nano Letters, 2010,10(10):4123-4127.
[10] Kang B, Ceder G. Battery materials for ultrafast charging and disc-harging[J]. Nature, 2009,458(7235):190-193.
[11] Wang L, He X, Sun W, et al. Crystal orientation tuning of LiFePO4 nanoplates for high rate lithium battery cathode materials[J]. Nano Letters, 2012,12(11):5632-5636.
[12] Padhi A K, Archibald W B, Nanjundaswamy K S, et al. Ambient and high-pressure structures of LiMnVO4 and its Mn3+/Mn2+ redox en-ergy[J]. Journal of Solid State Chemistry, 1997,128(2):267-272.
[13] Wei Y J, Liang G C, Wang L, et al. Synjournal and electrochemical performance of LiFe1-xMnxPO4/C cathode material[J]. Advanced Materials Research, 2011,347-353(1):3434-3438.
[14] Jiang A, Wang X, Gao M, et al. Enhancement of electrochemical properties of niobium-doped LiFePO4/C synthesized by sol-gel met-hod[J]. Journal of the Chinese Chemical Society, 2018,65(8):977-981.
[15] Zhou F, Zhu P, Fu X, et al. Comparative study of LiMnPO4 cathode materials synthesized by solvothermal methods using different manganese salts[J]. CrystEngComm, 2013,16(5):766-774.
[16] Wang X, Zhao X, Wang J, et al. Electrospun Li3V2(PO4)3 nanobel-ts:synjournal and electrochemical properties as cathode materials of lithium-ion batteries[J]. Journal of the Chinese Chemical Socie-ty, 2017,64(5):97-104.
[17] Hu P, Zhong K, Zhang C, et al. Spray drying synjournal and electro-chemical performance of lithium ion battery cathode materials LiNi0.5Mn1.5O4[J]. Journal of Synthetic Crystals, 2015,44(8):2184-2190.
[18] Wang Y, Wang X, Jiang A, et al. A versatile nitrogen-doped carbon coating strategy to improve the electrochemical performance of LiFePO4 cathodes for lithium-ion batteries[J]. Journal of Alloys and Compounds, 2019,810(25):151889.
[19] Doan T N L, Bakenov Z, Taniguchi I. Preparation of carbon coated LiMnPO4 powders by a combination of spray pyrolysis with dry ball-milling followed by heat treatment[J]. Advanced Powder Te-chnology, 2010,21(2):187-196.
[20] Fan L, Wu L, Guan M, et al. Preparation of LiFe(1-3y/2)AlyPO4 cathode material by precursor-doping combined room temperature reduc-tion via ball-milling[J]. The Chinese Journal of Nonferrous Metals, 2014,24(2):468-475.
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