Electrochemical behaviors of Si/C composite synthesized from F-containing precursors

Liu, Y.; Wen, Zhenhai; Wang, X.Y.; Hirano, Atsushi; Imanishi, Nobuyuki; Takeda, Yasuo

doi:10.1016/j.jpowsour.2008.08.016

Cited by 60 publications

(45 citation statements)

References 16 publications

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“…247 SiC has been reported to form more readily from PVDF than from other polymers. 254 Kumpta's group has found that the formation of SiC could be effectively suppressed during the ball milling of Si and C by using polymer additives that act as diffusion barriers between Si and graphite, inhibiting their reaction. 255, 256 Despite the general agreement that the SiC phase is inert in Si−C composites, it has been reported that some forms of SiC are active toward lithiation.…”

Section: Alloys Of the Active Elementsmentioning

confidence: 99%

Alloy Negative Electrodes for Li-Ion Batteries

2014

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Section: Alloys Of the Active Elementsmentioning

confidence: 99%

Alloy Negative Electrodes for Li-Ion Batteries

2014

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“…Chlorine content in polymers and the ratio of polymer in Si/polymer mixtures were both found to be effective in affecting the electrode performance. Takeda et al aimed at finding a suitable precursor for the pyrolyzed Si/C composites, and they found the fluorine‐containing precursors have a substantial improvement over the bare nano‐Si particles . In their study, Si/C composite with PVDF‐generated carbon showed significant improvement in stability over bare Si NPs.…”

Section: Versatile Si‐based Compositesmentioning

confidence: 99%

Silicon‐Based Anodes for Lithium‐Ion Batteries: From Fundamentals to Practical Applications

Feng

Liu

et al. 2018

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Silicon has been intensively studied as an anode material for lithium-ion batteries (LIB) because of its exceptionally high specific capacity. However, silicon-based anode materials usually suffer from large volume change during the charge and discharge process, leading to subsequent pulverization of silicon, loss of electric contact, and continuous side reactions. These transformations cause poor cycle life and hinder the wide commercialization of silicon for LIBs. The lithiation and delithiation behaviors, and the interphase reaction mechanisms, are progressively studied and understood. Various nanostructured silicon anodes are reported to exhibit both superior specific capacity and cycle life compared to commercial carbon-based anodes. However, some practical issues with nanostructured silicon cannot be ignored, and must be addressed if it is to be widely used in commercial LIBs. This Review outlines major impactful work on silicon-based anodes, and the most recent research directions in this field, specifically, the engineering of silicon architectures, the construction of silicon-based composites, and other performance-enhancement studies including electrolytes and binders. The burgeoning research efforts in the development of practical silicon electrodes, and full-cell silicon-based LIBs are specially stressed, which are key to the successful commercialization of silicon anodes, and large-scale deployment of next-generation high energy density LIBs.

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“…One of the most promising methods is to disperse Si into a carbon matrix [6][7][8], in which the carbon phase acts as both a structural buffer and an electrochemically active material. Graphite, mesophase microbeads (MCMB), pyrolyzed polyvinyl chloride (PVC), and other carbonaceous materials have been used as matrices for Si [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%