Investigation of CrSi2 and MoSi2 as anode materials for lithium-ion batteries

Courtel, Fabrice M.; Duguay, Dominique; Abu-Lebdeh, Yaser; Davidson, Isobel

doi:10.1016/j.jpowsour.2011.11.047

Cited by 43 publications

(41 citation statements)

References 22 publications

(43 reference statements)

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“…graphite, graphene, nanotubes, amorphous or porous carbons , , . Next to carbon, the use of various types of silicon oxides (SiO x ), as well as the combination of Si with a variety of different metals, among others Mg, Cr, Ni,, Fe, or Ti, in form of alloys or intermetallic phases has been intensively investigated. Fässler et al reported various intermetallic phases, including for example Li 15– x M x Si 4 ( M = Mg, Zn, and Al), Li 15– x Al x Si 4 (0.4 < x < 0.8), or Li 12 Si 7– x Ge x , which may have promising characteristics as advanced anode materials for LIBs .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Comparative Investigation of Silicon Transition Metal Silicide Composite Anodes for Lithium Ion Batteries

Ruttert

Siozios

Winter

et al. 2019

Zeitschrift anorg allge chemie

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A significant increase in energy density of lithium ion batteries (LIBs) can be achieved by using high-capacity, silicon (Si)-based negative electrode materials. Several challenges arise from the enormous volumetric changes of Si during lithiation/delithiation, such as disintegration/pulverization of the active material and the electrode as well as ongoing electrolyte decomposition, leading to rapid capacity fading. Here, we synthesize and comparatively investigate three different porous transition metal-Si-carbon composite materials that are composed of an active Si phase and the corresponding inactive metalsilicide phases. In this material design, the inactive phases, as well as the pores serve as a buffer to attenuate the previously mentioned * Prof. Dr. M. Winter

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Section: Introductionmentioning

confidence: 99%

Synthesis and Comparative Investigation of Silicon Transition Metal Silicide Composite Anodes for Lithium Ion Batteries

Ruttert

Siozios

Winter

et al. 2019

Zeitschrift anorg allge chemie

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“…Lithiation and delithiation properties of silicides have not yet been investigated in ionic liquid electrolytes. On the other hand, in organic electrolytes, some groups have reported the charge‐discharge properties of some silicides . However, the groups have performed insufficient characterization: they characterized prepared samples by only X‐ray diffraction (XRD), which detects the crystalline material but cannot detect amorphous ones.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, in organic electrolytes, some groups have reported the charge-discharge properties of some silicides. [23][24][25][26] However, the groups have performed insufficient characterization: they characterized prepared samples by only X-ray diffraction (XRD), which detects the crystalline material but cannot detect amorphous ones. Assuming that the synthesized samples include amorphous Si (a-Si), an estimated reversible capacity should largely differ.…”

Section: Introductionmentioning

confidence: 99%

Lithiation and Delithiation Reactions of Binary Silicide Electrodes in an Ionic Liquid Electrolyte as Novel Anodes for Lithium‐Ion Batteries

et al. 2018

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We investigated the lithiation and delithiation properties of pure binary silicide electrodes in an ionic liquid electrolyte as novel anodes for lithium‐ion batteries. Some electrodes maintain a high reversible capacity in the electrolyte, whereas they show a poor cycling performance in an organic electrolyte. The superior performance results from the high affinity for the transition metal that composes the silicide with Li. Based on reaction behavior analysis, the crystal structure of silicide is maintained during the cycling, and phase separation does not occur. The ionic liquid electrolyte suppresses the formation of cracks and exfoliation of the silicide layer from a substrate. In addition, a surface film formed on the silicide electrode through the reductive decomposition of the electrolyte has different components than that on a Si electrode, even in the same ionic liquid electrolyte. Soft X‐ray emission spectroscopy demonstrates that the pure silicide itself reacts with Li. The obtained results will provide significant insights into novel alloy‐based anode materials for lithium‐ion batteries.

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“…5 However, Si-based anodes also suffer from a signicant volume change of up to 400% during Li insertion and extraction, which leads to rapid capacity fading upon cycling. Tremendous work has been conducted to address this issue by reducing the particle size, 6,7 producing porous structures, [8][9][10][11][12] forming silicon-metal alloys, 13,14 fabricating thin lms, [15][16][17] creating Si/C composites, [18][19][20] dispersing silicon nanoparticles into an inactive/active matrix, [21][22][23] etc. Unfortunately, the practical applications of Si-based anodes in LIBs have not been realized.…”

Section: Introductionmentioning

confidence: 99%

Linking particle size to improved electrochemical performance of SiO anodes for Li-ion batteries

Huang

Yang

et al. 2017

RSC Adv.

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Investigation of CrSi2 and MoSi2 as anode materials for lithium-ion batteries

Cited by 43 publications

References 22 publications

Synthesis and Comparative Investigation of Silicon Transition Metal Silicide Composite Anodes for Lithium Ion Batteries

Synthesis and Comparative Investigation of Silicon Transition Metal Silicide Composite Anodes for Lithium Ion Batteries

Lithiation and Delithiation Reactions of Binary Silicide Electrodes in an Ionic Liquid Electrolyte as Novel Anodes for Lithium‐Ion Batteries

Linking particle size to improved electrochemical performance of SiO anodes for Li-ion batteries

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