Si@Si3N4@C composite with egg-like structure as high-performance anode material for lithium ion batteries

Xiao, Zhexi; Lei, Chao; Yu, Chunhui; Xiao, Chen; Zhu, Zhenxing; Jiang, Helen; Wei, Fei

doi:10.1016/j.ensm.2019.06.031

Cited by 121 publications

(89 citation statements)

References 52 publications

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“…The Si thin films obtained via CVD usually have polycrystalline structures. In preparation of Si/C anode materials, CVD can not only achieve uniform Si growth in carbon matrix or outside of CNT, [44,56,73,74] but also obtain amorphous carbon or CNT outside of Si [40,47,51,75–83] . Sometimes, both Si and carbon can be prepared by CVD [84–87,89] …”

Section: Synthesis Methods Of Silicon/carbon Anodesmentioning

confidence: 99%

“…In preparation of Si/C anode materials, CVD can not only achieve uniform Si growth in carbon matrix or outside of CNT, [44,56,73,74] but also obtain amorphous carbon or CNT outside of Si. [40,47,51,[75][76][77][78][79][80][81][82][83] Sometimes, both Si and carbon can be prepared by CVD. [84][85][86][87]89] Wilson et al [88] firstly obtained nano-dispersed Si in carbon using CVD and they found that the silicon was mainly located in the unorganized regions of the carbon without disturbing the organized regions.…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

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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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Section: Synthesis Methods Of Silicon/carbon Anodesmentioning

confidence: 99%

Section: Chemical Vapor Depositionmentioning

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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“…The smaller R ct values of pristine and cycled rGO@CVO electrode demonstrate that the rGO@CVO electrode possesses stable structure and good electrical conductivity, revealing the fast electron transfer and reaction kinetics of rGO@CVO electrode. The Na + diffusion coefficient (D Na+ ) is calculated by the equation of [39,40]. The b is the Warburg factor, which is the slope of the line Z' = R e + R ct + bω −1/2 [41].…”

Section: Lithium Ion Batteriesmentioning

confidence: 99%

Co3V2O8 Nanoparticles Supported on Reduced Graphene Oxide for Efficient Lithium Storage

Shang

2020

Nanomaterials

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Co3V2O8 (CVO) with high theoretical specific capacity derived from the multiple oxidation states of V and Co is regarded as a potential electrode material for lithium-ion batteries (LIBs). Herein, reduced graphene oxide (rGO)-supported ultrafine CVO (rGO@CVO) nanoparticles are successfully prepared via the hydrothermal and subsequent annealing processes. The CVO supported on 2D rGO nanosheets possess excellent structural compatibility for the accommodation of volume variation to maintain the structural integrity of an electrode during the repeated lithiation/delithiation process. On the other hand, the rGO, as a highly-conductive network in the rGO@CVO composite, facilitates rapid charge transfer to ensure fast reaction kinetics. Moreover, the CV kinetic analysis indicates that the capacity of rGO@CVO is mainly dominated by a pseudocapacitive process with favorable rate capability. As a result, the rGO@CVO composite exhibits improved specific capacity (1132 mAh g−1, 0.1 A g−1) and promising rate capability (482 mAh g−1, 10 A g−1).

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“…Furthermore, it has been known that the kinetic property of the electrode is mainly related to the diffusion of Li + . [30][31][32] In this study, the conductive agent is a key factor to inuence the diffusion of Li + . The GITT analysis was conducted to determine the Li + diffusion coefficient of two representative SP and LCNT (Fig.…”

Section: Electrochemical Analysismentioning

confidence: 99%

Effects of the aspect ratio of the conductive agent on the kinetic properties of lithium ion batteries

Song

Çakmakçı

2019

RSC Adv.

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Si@Si3N4@C composite with egg-like structure as high-performance anode material for lithium ion batteries

Cited by 121 publications

References 52 publications

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

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

Co3V2O8 Nanoparticles Supported on Reduced Graphene Oxide for Efficient Lithium Storage

Effects of the aspect ratio of the conductive agent on the kinetic properties of lithium ion batteries

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