Nanostructured Si/Sn–Ni/C composite as negative electrode for Li-ion batteries

Edfouf, Zineb; Cuevas, Fermín; Latroche, M.; Georges, Cécile; Jordy, Christian; Hézèque, T.; Caillon, Georges; Jumas, Jean‐Claude; Sougrati, Moulay Tahar

doi:10.1016/j.jpowsour.2011.01.046

Cited by 48 publications

(23 citation statements)

References 24 publications

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“…The electrochemical reactivity of the electrodes were analyzed by cyclic voltammetry tests, and the results are given in Figure . As shown in the Figure , the cathodic peaks observed around 1.0 to 1.25 V during the 5 cycles is obtained because of the solid electrolyte interface formation, which is related with the formation of a passivating film over the electrode surface also reported by Edfouf et al…”

Section: Resultssupporting

confidence: 67%

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

et al. 2018

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Summary In this paper, nanosized Ni3Sn4 nanoparticles were synthesized by chemical reduction technique. A facile strategy is also developed to synthesize the yolk‐shell Ni3Sn4 nanoparticles decorated between the layers of multilayer graphene to obtain high‐capacity, long service life with comparable cost Li‐ion batteries. Ni3Sn4 nanoparticles in the form of yolk‐shell morphology were synthesized between 30 and 130 nm in size and homogeneously anchored on graphene layers as spacers preventing the layers merging after vacuum filtration. The characterization of the as‐synthesized composite electrodes was performed by scanning electron microscopy and X‐ray diffraction methods. As an anode electrode, yolk‐shell Ni3Sn4/graphene composite electrodes revealed a stable capacity of 324.5 mAh g−1 after 250 cycles, indicating that the composites might have a promising future application in Li‐ion batteries. The results have shown that unique yolk‐shell Ni3Sn4/graphene hybrid composite structure shows extraordinary electrochemical performance with superior reversible capacity and improved cyclic performance, indicating that the stacking of the active electrode nanoparticles between the graphene layers is a good method for maximum specific capacity outputs.

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Section: Resultssupporting

confidence: 67%

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

et al. 2018

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“…Thereafter, enough space for the expansion of silicon was provided. In addition, the presence of aluminum further enhanced the conductivity and the rate performance of the anodes . In the work described in the paper, coin lithium ion batteries were assembled using the prepared materials as anodes and commercial ternary material LiNi 0.6 Co 0.2 Mn 0.2 O 2 as cathodes, which showed excellent electrochemical activities.…”

Section: Methodsmentioning

confidence: 99%

“…The Brunauer‐Emmett‐Teller (BET) specific surface area of MSBC was calculated to be 7.91 m 2 /g. Since a large specific surface area indicates a high surface SEI, the SEI films on the smaller particles have larger challenge of overgrowth and higher irreversible lithium ions consumption . Thus, in the commercial batteries design, the parameters of particle size and specific area must meet a certain requirement, and those of the prepared composite just laid in such range.…”

Section: Methodsmentioning

confidence: 99%

Improving the Performance of SiO_x/Carbon Materials for High Energy Density Commercial Lithium‐Ion Batteries Based on Montmorillonite

et al. 2020

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Silicon is recognized as the most promising anode material for the next-generation battery. In order to improve the processing and electrochemical performances, a silicon-based anode composite was synthesized using silicon, montmorillonite and carboxymethylcellulose (CMC) as raw materials. The processing parameters, such as particle size and specific surface area, were ameliorated to be consistent with those of commercial lithium-ion battery (LIB) anode materials. As an anode composite, it perfectly matched with high nickel ternary cathode materials and showed excellent electrochemical properties. The discharge capacities were all above 1000 mAh/g and the coulombic efficiency of each step was over 99 % throughout the 50 cycles at 1 C (1100 mA/g). Its superior performances are attributed to the unique layered structure, which buffers the volume expansion and enhances the stability of the solid electrolyte interface (SEI) film on the anodic electrode, suggesting a perspective future in designing high energy density commercial LIBs.

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“…The [47,48]. The slope line at low frequency corresponds to the Warburg impedance (Z w ), which is related to the Li-ion diffusion in the electrodes [45].…”

Section: Impedance Spectroscopymentioning

confidence: 99%

Li4Ti5O12/TiO2-SiO2 and Li4Ti5O12/SiO2 composites as an anode material for Li-ion batteries

Kurc

2017

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The commercial electrode Li 4 Ti 5 O 12 was modified with SiO 2 and TiO 2 -SiO 2 . All samples were characterized by scanning electron microscope (SEM), particle size distribution (PSD), porous structure parameters (low-temperature N 2 sorption), galvanostatic charge-discharge test, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Appropriate amount of TiO 2 -SiO 2 and SiO 2 could effectively reduce the electrochemical polarization of Li 4 Ti 5 O 12 and enhance electrochemical reaction kinetics of Li + insertion/ deinsertion. Moreover, Li 4 Ti 5 O 12 /TiO 2 -SiO 2 provides a high rate capacity of 165 mAh g −1 at the high current density of 0.5 C. To investigate cycle stability of the electrode materials at high current density, the measurements were directly carried out at 3 C. SEM images of the LTO/TiO 2 -SiO 2 , LTO, and LTO/SiO 2 particles after galvanostatic charging/discharging show that they were coated by a uniform layer (the SEI layer).

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Nanostructured Si/Sn–Ni/C composite as negative electrode for Li-ion batteries

Cited by 48 publications

References 24 publications

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

Improving the Performance of SiO_x/Carbon Materials for High Energy Density Commercial Lithium‐Ion Batteries Based on Montmorillonite

Li4Ti5O12/TiO2-SiO2 and Li4Ti5O12/SiO2 composites as an anode material for Li-ion batteries

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Nanostructured Si/Sn–Ni/C composite as negative electrode for Li-ion batteries

Cited by 48 publications

References 24 publications

Intermetallic Ni3Sn4-based graphene@carbon hybrid composites for lithium-ion batteries

Intermetallic Ni3Sn4-based graphene@carbon hybrid composites for lithium-ion batteries

Improving the Performance of SiOx/Carbon Materials for High Energy Density Commercial Lithium‐Ion Batteries Based on Montmorillonite

Li4Ti5O12/TiO2-SiO2 and Li4Ti5O12/SiO2 composites as an anode material for Li-ion batteries

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Product

Resources

About

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

Intermetallic Ni₃Sn₄-based graphene@carbon hybrid composites for lithium-ion batteries

Improving the Performance of SiO_x/Carbon Materials for High Energy Density Commercial Lithium‐Ion Batteries Based on Montmorillonite