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Journal of Inorganic Materials, Volume. 36, Issue 7, 718(2021)

Microwave-assisted Synthesis and Co, Al Co-modification of Ni-rich LiNi0.8Mn0.2O2 Materials for Li-ion Battery Electrode

Yukun FU1... Min ZENG1, Xianfa RAO1, Shengwen ZHONG1, Huijuan ZHANG2 and Wenli YAO1,* |Show fewer author(s)
Author Affiliations
  • 11. Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
  • 22. School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200240, China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(17)
    SEM images of (a, b) NM-82, (c-l) NMCA-n (n=0, 1, 2, 3, 5)
    1. SEM images of (a, b) NM-82, (c-l) NMCA-n (n=0, 1, 2, 3, 5)

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    XRD patterns of NM-82 and NMCA-n (n=0, 1, 2, 3, 5)
    2. XRD patterns of NM-82 and NMCA-n (n=0, 1, 2, 3, 5)

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    (a) Total survey and (b) Ni2p, (c) Co2p, (d) Al2p XPS spectra of NM-82 and NMCA-2
    3. (a) Total survey and (b) Ni2p, (c) Co2p, (d) Al2p XPS spectra of NM-82 and NMCA-2

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    (a,c) TEM images, (b,d)HR-TEM images and (insets in (b, d)) the corresponding FFT graphs of NM-82 and NMCA-2
    4. (a,c) TEM images, (b,d)HR-TEM images and (insets in (b, d)) the corresponding FFT graphs of NM-82 and NMCA-2

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    (a-c) Charge/discharge curves and (d-f) corresponding dQ/dV plots of NM-82, NMCA-0 and NMCA-2
    5. (a-c) Charge/discharge curves and (d-f) corresponding dQ/dV plots of NM-82, NMCA-0 and NMCA-2

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    Cycling performance and corresponding capacity retention rate (inset) of different materials
    6. Cycling performance and corresponding capacity retention rate (inset) of different materials

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    (a-c) CV curves, (d-f) EIS plots and (insert in (d)) corresponding equivalent electrical circuit of NM-82, NMCA-0 and NMCA-2
    7. (a-c) CV curves, (d-f) EIS plots and (insert in (d)) corresponding equivalent electrical circuit of NM-82, NMCA-0 and NMCA-2

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    Schematic diagram of microwave assisted coprecipitation
    S1. Schematic diagram of microwave assisted coprecipitation

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    SEM image and TEM-EDS elemental mappings of NMCA-2
    S2. SEM image and TEM-EDS elemental mappings of NMCA-2

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    (a, b) Particle size distributions, (c) nitrogen adsorption-desorption isotherms and (d) pore size distributions of NM-82 and NMCA-2
    S3. (a, b) Particle size distributions, (c) nitrogen adsorption-desorption isotherms and (d) pore size distributions of NM-82 and NMCA-2

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    Schematic diagram of layered material structure
    S4. Schematic diagram of layered material structure

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    Rietveld refinement results of (a) NM-82, (b) NMCA-0 and (c) NMCA-2
    S5. Rietveld refinement results of (a) NM-82, (b) NMCA-0 and (c) NMCA-2

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    Rate performances of different cathode materials
    S6. Rate performances of different cathode materials

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    DSC curves of NM-82, NMCA-0 and NMCA-2
    S7. DSC curves of NM-82, NMCA-0 and NMCA-2

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    • Table 1. Parameters of Rietveld refinement for NM-82, NMCA-0 and NMCA-2

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      Table 1. Parameters of Rietveld refinement for NM-82, NMCA-0 and NMCA-2

      Samplea/nmc/nmc/aI(003)/I(104)
      NM-820.28751.42324.95071.3197
      NMCA-00.28771.42294.94571.3945
      NMCA-20.28721.42434.95931.5888

    • Table 2. Specific discharge capacities of materials at different rates/(mAh·g-1)

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      Table 2. Specific discharge capacities of materials at different rates/(mAh·g-1)

      Sample0.2C0.5C1C2C3C4C5C0.2C
      NM-82195.57183.52175.03164.59157.33149.26141.49185.66
      NMCA-0192.45182.66176.69166.91160.88157.05153.17183.80
      NMCA-1189.79182.60177.43169.72165.24162.25158.83187.36
      NMCA-2189.70183.05177.84172.80169.08164.76160.03189.25
      NMCA-3187.28180.32174.85168.60162.63158.61156.14187.50
      NMCA-5186.04178.28173.83167.08163.41157.97150.84181.33

    • Table 3. EIS fitting data of NM-82, NMCA-0 and NMCA-2

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      Table 3. EIS fitting data of NM-82, NMCA-0 and NMCA-2

      SampleCycle numberRs/ΩRsf /ΩRct/Ω
      NM-8253.8520.2046.65
      503.0949.3264.95
      1007.2794.06138.40
      NMCA-051.8929.2420.19
      502.0158.1372.25
      1004.0482.55114.90
      NMCA-255.1131.8519.80
      503.3051.7872.70
      1004.0867.3267.88
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    Yukun FU, Min ZENG, Xianfa RAO, Shengwen ZHONG, Huijuan ZHANG, Wenli YAO. Microwave-assisted Synthesis and Co, Al Co-modification of Ni-rich LiNi0.8Mn0.2O2 Materials for Li-ion Battery Electrode[J]. Journal of Inorganic Materials, 2021, 36(7): 718

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Sep. 7, 2020

    Accepted: --

    Published Online: Nov. 25, 2021

    The Author Email: YAO Wenli (wenliyao@126.com)

    DOI:10.15541/jim20200522

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology