Preparation and electrochemical properties of high capacity silicon-based composites for lithium-ion batteries

Ding, Bo; Ahsan, Zishan; Huang, Xuanning; Cai, Zhengyu; Ma, Yangmin; Song, Guowen; Yang, Weidong; Chen, Wen

doi:10.1016/j.synthmet.2020.116324

Cited by 14 publications

(12 citation statements)

References 36 publications

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“…1 below. The XRD pattern for almost all ratios demonstrated about similar pattern where the formation of MgO can be observed at 2θ = 36.5 o , 42.9 o and 62.5 o which are in good agreement with the previous study [5,17]. Meanwhile, Al2O3 was positioned at 2θ of 32.3 o , 39.5 o , 45.2 o , 60.3 o , 66.8 o as indicated recently [18][19][20].…”

Section: Xrd Analysissupporting

confidence: 91%

Sol-gel Synthesis and Characterization of MgCO3 – Al2O3 Composite Solid Electrolytes

Sulaiman¹,

Kadir²,

Mat³

2021

JNMES

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Composite solid electrolytes in the system (1-x)MgCO3 – xAl2O3 with x = 0.1 - 0.9 were synthesized by a sol-gel method and analyzed by X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, energy dispersive X-ray, Fourier transform infrared spectroscopy and alternating current impedance spectroscopy for the determination of the phases and crystallinity, thermal stability, surface morphology, elemental composition, chemical bonding and conductivity, respectively. The composites show that, the crystallinity of the composites decreases as the amount of Al2O3 increase which could lead to higher conductivity. The thermal decomposition studies also indicate that the melting and/or decomposition of the composites occur at lower temperature than the pure MgCO3 which normally take place at 350 oC. The composite with the ratio of x = 0.9 give the highest conductivity value in order of 10-4 S.cm-1 as compared to other ratio due to effective transfer of charge carriers in addition to the formation of MgO-Mg2+ species at the interface.

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Section: Xrd Analysissupporting

confidence: 91%

Sol-gel Synthesis and Characterization of MgCO3 – Al2O3 Composite Solid Electrolytes

Sulaiman¹,

Kadir²,

Mat³

2021

JNMES

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“…Ultimately, better performance such as enhanced capacity and high capacity retention rate are obtained. [21,41,54,[65][66][67][68] Combining with etching, ball mill method can also be used to prepare porous Si-based anode materials. Researchers found that the problems of acid consumption and Si yield can be effectively solved by simply changing the sequence of the ball-milling and acid etching.…”

Section: Mechanical Millingmentioning

confidence: 99%

Research Progress of Silicon/Carbon Anode Materials for Lithium‐Ion Batteries: Structure Design and Synthesis Method

Zhang

Yuan

et al. 2020

ChemElectroChem

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Silicon has been considered as one of the best alternatives to replace widely used graphite anodes for lithium‐ion batteries, owing to its high theoretical capacity, proper working voltage, abundant availability, and environmental friendliness. Nevertheless, there are many obstacles that hamper the practical applications of silicon anode materials such as huge volume change, low electrical and ionic conductivity, and unstable solid electrolyte interface (SEI), which lead to the pulverization of silicon and severe attenuation of capacity. Among numerous solutions, compounding with carbon is a promising and effective one that attracts more and more attention. In silicon/carbon (Si/C) hybrid anodes, Si acts as the active material that provides high capacity and carbon improves the conductivity as well as alleviates the expansion of Si. In this review, research progresses and developments of Si/C anode materials are summarized mainly from the point of structure design and synthesis methods. Issues and possible solutions are also discussed.

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“…As a result, TiO 2 ‐C functions as a synergistic hybrid buffering matrix for the active material with a high theoretical capacity that undergoes a large volume change. High‐energy ball milling (HEBM) is one of the least expensive, yet most prevalent and productive method for synthesizing nanocomposites 32,33 . HEBM is a top‐down approach that functions fundamentally by mechanical friction which induces a mechanochemical solid‐state chemical reaction 34 …”

Section: Introductionmentioning

confidence: 99%

Highly reversible lithiation/delithiation in indium antimonide with hybrid buffering matrix

Hieu

Kim

et al. 2021

Int J Energy Res

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Summary Sb‐based intermetallic materials have been extensively studied as electrodes for lithium‐ion batteries (LIBs) owing to the high discharge capacity and acceptable working voltage range. In this study, InSb nanocrystallites were homogeneously distributed and embedded into a combined matrix of amorphous carbon and rutile TiO2 by a facile two‐time ball‐milling process. The nanostructure of the composite exhibited a favorable synergistic effect of the three components (InSb: high‐capacity active material, TiO2: inorganic crystalline robust matrix, and C: carbonaceous amorphous conductive matrix), which not only supplied a buffering network to suppress the volume expansion of InSb during the Li+ ion intercalation/deintercalation process, but also enhanced the ionic/electronic conductivity of the anode material. Consequently, the InSb‐TiO2‐C anode delivered a long lifespan and remarkable rate performance. In addition, the anode showed a high reversible discharge capacity of 540 mAh g−1 even after 400 cycles at a high current rate of 500 mA g−1. Furthermore, the anode exhibited good capacity retention (87% at 2 A g−1 relative to the capacity at 0.1 A g−1). These results indicate the potential of InSb‐TiO2‐C nanocomposites for LIBs anode materials.

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Preparation and electrochemical properties of high capacity silicon-based composites for lithium-ion batteries

Cited by 14 publications

References 36 publications

Sol-gel Synthesis and Characterization of MgCO3 – Al2O3 Composite Solid Electrolytes

Sol-gel Synthesis and Characterization of MgCO3 – Al2O3 Composite Solid Electrolytes

Research Progress of Silicon/Carbon Anode Materials for Lithium‐Ion Batteries: Structure Design and Synthesis Method

Highly reversible lithiation/delithiation in indium antimonide with hybrid buffering matrix

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