Facile synthesis of Si-C nanocomposites with yolk-shell structure as an anode for lithium-ion batteries

Ma, Yiheng; Tang, Haoqing; Zhang, Yao; Li, Zhoufu; Zhang, Xinhe; Tang, Zhiyuan

doi:10.1016/j.jallcom.2017.02.083

Cited by 59 publications

(22 citation statements)

References 39 publications

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“…Si nanostructures such as nanoparticles, nanowires, nanotubes and nanosheets are designed to relieve mechanical strain. Porous Si, hollow spheres, yolk–shell structures, and their carbon composites are also designed to provide appropriate space for Si expansion. For the Si/C composite, Si particles are distributed in a conductive carbon matrix to ease Si volume variation and keep the mechanical integrity of the whole composite electrode.…”

Section: Challenges Of Si‐based Anodes and Strategies To Address Themmentioning

confidence: 99%

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

et al. 2020

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Section: Challenges Of Si‐based Anodes and Strategies To Address Themmentioning

confidence: 99%

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

et al. 2020

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“…For the planer electrode design, the delithiation capacity drops to 60% of its original capacity at 1.8 mAh/cm 2 loading after 28 cycles; whereas for electrodes using secondary particles, the capacity decay is minimum. The high current density delithiation (2500 mAh/g) is also improved as lithium‐ion transport improves within the composite secondary particle based electrode …”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

An overview on efforts to enhance the Si electrode stability for lithium ion batteries

2019

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This report summarizes the challenges and developments related to the cycle stability of Si anodes. It describes the two-component material concepts using polymer blends and the approaches to material optimization for more stable Si anodes. Since the anode behavior also depends strongly on the Si particle size (and in polymer mixtures no uniform Si particle size is given), the properties of the Si anodes depending on the Si particle size and the underlying fundamental processes at the solid-electrolyte interface were described shortly. Bicomponent silicon-based composites (carbon additives, inorganic nanoparticles and polymers) on the anode behavior were compared by two properties: specific capacity and cycle number of the anodes. This article focuses on Si-polymer blends where the polymer can act as a binder or/and as a solid-state electrolyte. To help further the understanding the role of polymer we have gathered together useful data from the literature on solubilities, flexibility and hardness for the polymers generally used. We offer a perspective for polymer hydrogels that will enable a promising material composition for stable Si anodes. K E Y W O R D Sconductive polymers, hydrogels, lithium ion battery, silicon anode, solid-electrolyte interphase 2 | CHALLENGES FOR SI ELECTRODES Si based anodes are quite instable, capacity decay, cracks on anode, failure of electrical conductivity and inhibition are problems to be solved.

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“…The YS structure with unique buffering space, large surface area and short diffusion distance shows great superiority as next-generation LIBs anodes [ 97 – 99 ]. Silicon is one of the promising materials for LIBs anodes [ 100 – 103 ]. Cui et al [ 104 ] fabricated a YS Si@C spherical structure at room temperature.…”

Section: Performance Of Yolk–shell Materials In Lithium Batteriesmentioning

confidence: 99%

A Review: Enhanced Anodes of Li/Na-Ion Batteries Based on Yolk–Shell Structured Nanomaterials

Tong

et al. 2018

Nano-Micro Lett.

112

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Lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) have received much attention in energy storage system. In particular, among the great efforts on enhancing the performance of LIBs and SIBs, yolk–shell (YS) structured materials have emerged as a promising strategy toward improving lithium and sodium storage. YS structures possess unique interior void space, large surface area and short diffusion distance, which can solve the problems of volume expansion and aggregation of anode materials, thus enhancing the performance of LIBs and SIBs. In this review, we present a brief overview of recent advances in the novel YS structures of spheres, polyhedrons and rods with controllable morphology and compositions. Enhanced electrochemical performance of LIBs and SIBs based on these novel YS structured anode materials was discussed in detail.

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Facile synthesis of Si-C nanocomposites with yolk-shell structure as an anode for lithium-ion batteries

Cited by 59 publications

References 39 publications

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

An overview on efforts to enhance the Si electrode stability for lithium ion batteries

A Review: Enhanced Anodes of Li/Na-Ion Batteries Based on Yolk–Shell Structured Nanomaterials

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