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Journal of Inorganic Materials, Volume. 40, Issue 7, 772(2025)

Composition-gradient Design of Silicon Electrodes to Mitigate Mechanochemical Coupling Degradation

Bowen TAN, Shuanglong GENG, Kai ZHANG*, and Bailin ZHENG*
Author Affiliations
  • School of Aerospace and Mechanics, Tongji University, Shanghai 200092, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (18)
    References (33)
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    Figures & Tables(12)
    Mass fraction distributions of Si in 3 types of electrodes
    1. Mass fraction distributions of Si in 3 types of electrodes

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    Schematic of PPM of Si electrode half-cell
    S1. Schematic of PPM of Si electrode half-cell

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    Schematic diagram of the electrode scale model
    S2. Schematic diagram of the electrode scale model

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    Schematic of electrode preparation and battery assembly
    2. Schematic of electrode preparation and battery assembly

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    Schematic of PPM of Si electrode half-cell
    3. Schematic of PPM of Si electrode half-cell

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    Electrochemical performance of different lithium-ion batteries
    4. Electrochemical performance of different lithium-ion batteries

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    Characterization of Si nanoparticles
    5. Characterization of Si nanoparticles

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    SEM images of the electrode surfaces and cross-sections after cycling
    6. SEM images of the electrode surfaces and cross-sections after cycling

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    Rate performance of lithium-ion batteries and resistances of electrodes
    7. Rate performance of lithium-ion batteries and resistances of electrodes

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    Results of multi-scale electro-chemo-mechanical coupled model
    8. Results of multi-scale electro-chemo-mechanical coupled model

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    • Table 1. Composition ratios of different Si mass fractions (%, in mass)

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      Table 1. Composition ratios of different Si mass fractions (%, in mass)

      Si/%SP/%SA/%
      107020
      206020
      305020
      404020
      503020
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    Bowen TAN, Shuanglong GENG, Kai ZHANG, Bailin ZHENG. Composition-gradient Design of Silicon Electrodes to Mitigate Mechanochemical Coupling Degradation[J]. Journal of Inorganic Materials, 2025, 40(7): 772

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    Paper Information

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    Received: Nov. 11, 2024

    Accepted: --

    Published Online: Sep. 3, 2025

    The Author Email: Kai ZHANG (kaizhang@tongji.edu.cn), Bailin ZHENG (blzheng@tongji.edu.cn)

    DOI:10.15541/jim20240472

    Topics

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