Amorphous SiO<sub>2</sub>/C composite as anode material for lithium-ion batteries

Cao, Linmin; Huang, Jilin; Lin, Zhipeng; Yu, Xiang; Wu, Xiaoguang; Zhang, Bodong; Zhan, Yunfeng; Xie, Fangyan; Zhang, Weihong; Chen, Jian; Meng, Hui

doi:10.1557/jmr.2017.298

Cited by 33 publications

(27 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A main strategy to overcome the challenges of silica as an anode material has been to use carbon as a conductive matrix material. Carbon coating provides an effective solution to the above issue, improving the cycling stability by buffering the volume expansion of the silica particles [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. Therefore, it is desirable to design a sustainable and eco-friendly preparation route for C/SiO 2 composites.…”

Section: Introductionmentioning

confidence: 99%

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

Porous silica-based materials are a promising alternative to graphite anodes for Li-ion batteries due to their high theoretical capacity, low discharge potential similar to pure silicon, superior cycling stability compared to silicon, abundance, and environmental friendliness. However, several challenges prevent the practical application of silica anodes, such as low coulombic efficiency and irreversible capacity losses during cycling. The main strategy to tackle the challenges of silica as an anode material has been developed to prepare carbon-coated SiO2 composites by carbonization in argon atmosphere. A facile and eco-friendly method of preparing carbon-coated SiO2 composites using sucrose is reported herein. The carbon-coated SiO2 composites were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetry, transmission and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, cyclic voltammetry, and charge–discharge cycling. A C/SiO2-0.085 M calendered electrode displays the best cycling stability, capacity of 714.3 mAh·g−1, and coulombic efficiency as well as the lowest charge transfer resistance over 200 cycles without electrode degradation. The electrochemical performance improvement could be attributed to the positive effect of the carbon thin layer that can effectively diminish interfacial impedance.

show abstract

Section: Introductionmentioning

confidence: 99%

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

show abstract

“…New applications of HSPs as electrolyte stabilizers or anodes in lithium ion batteries have been reported [17,[99][100][101][102]. In one such example, Zhang et al used HSP-based films filled with liquid electrolytes as solid electrolytes that show lithium-ion conductivities in the order of approximately 1 mS, while being mechanically stable and mitigating the penetration of dendrites [99].…”

Section: Energy Storagementioning

confidence: 99%

“…Cao et al demonstrated that HSPs embedded in porous carbon are promising anodes for lithium ion batteries. Such electrodes can provide a specific capacity of 910 mA h g −1 at a rate of 200 mA g −1 after 150 cycles, while exhibiting reasonable rate capability [100]. HSPs made of carbon-coated silica nanoparticles and several other combinations of carbon and HSPs have also been demonstrated as battery anodes (as shown in Figure 5) [99][100][101][102].…”

Section: Energy Storagementioning

confidence: 99%

“…Such electrodes can provide a specific capacity of 910 mA h g −1 at a rate of 200 mA g −1 after 150 cycles, while exhibiting reasonable rate capability [ 100 ]. HSPs made of carbon-coated silica nanoparticles and several other combinations of carbon and HSPs have also been demonstrated as battery anodes (as shown in Figure 5 ) [ 99 , 100 , 101 , 102 ]. These initial results were encouraging, but at present the use of HSPs in battery applications is not attracting much interest because of the low ionic and electrical conductivity of HSPs.…”

Section: Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Hollow Silica Particles: Recent Progress and Future Perspectives

Sharma

Polizos

2020

Nanomaterials

View full text Add to dashboard Cite

Hollow silica particles (or mesoporous hollow silica particles) are sought after for applications across several fields, including drug delivery, battery anodes, catalysis, thermal insulation, and functional coatings. Significant progress has been made in hollow silica particle synthesis and several new methods are being explored to use these particles in real-world applications. This review article presents a brief and critical discussion of synthesis strategies, characterization techniques, and current and possible future applications of these particles.

show abstract

“…Lithium-ion batteries (LIBs) have been widely used in portable devices, vehicle mounted equipment, and electrochemical energy storage owning to their environmental friendliness, high energy density, and long lifespan [1][2][3][4][5]. As the commercial anode material in LIBs, graphite has a low theoretical capacity of 372 mAh g −1 , which is difficult to meet the ever-growing demands of high-energy-density [6][7][8]. Therefore, momentous efforts have been made to exploring an ideal alternative anode with high lithium storage capacity.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Core-Shell Structured SiO2@Carbon Composite Nanorods for High-Performance Lithium-Ion Batteries

Pang

Zhang

et al. 2020

Nanomaterials

View full text Add to dashboard Cite

Recently, SiO2 has attracted wide attention in lithium-ion batteries owing to its high theoretical capacity and low cost. However, the utilization of SiO2 is impeded by the enormous volume expansion and low electric conductivity. Although constructing SiO2/carbon composite can significantly enhance the electrochemical performance, the skillful preparation of the well-defined SiO2/carbon composite is still a remaining challenge. Here, a facile strategy of in situ coating of polydopamine is applied to synthesis of a series of core-shell structured SiO2@carbon composite nanorods with different thicknesses of carbon shells. The carbon shell uniformly coated on the surface of SiO2 nanorods significantly suppresses the volume expansion to some extent, as well as improves the electric conductivity of SiO2. Therefore, the composite nanorods exhibit a remarkable electrochemical performance as the electrode materials of lithium-ion batteries. For instance, a high and stable reversible capacity at a current density of 100 mA g−1 reaches 690 mAh g−1 and a capacity of 344.9 mAh g−1 can be achieved even at the high current density of 1000 mA g−1. In addition, excellent capacity retention reaches 95% over 100 cycles. These SiO2@carbon composite nanorods with decent electrochemical performances hold great potential for applications in lithium-ion batteries.

show abstract

Amorphous SiO₂/C composite as anode material for lithium-ion batteries

Abstract: Abstract

Cited by 33 publications

References 39 publications

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

Hollow Silica Particles: Recent Progress and Future Perspectives

Facile Synthesis of Core-Shell Structured SiO2@Carbon Composite Nanorods for High-Performance Lithium-Ion Batteries

Contact Info

Product

Resources

About

Amorphous SiO2/C composite as anode material for lithium-ion batteries

Abstract: Abstract

Cited by 33 publications

References 39 publications

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

Carbon-Coated SiO2 Composites as Promising Anode Material for Li-Ion Batteries

Hollow Silica Particles: Recent Progress and Future Perspectives

Facile Synthesis of Core-Shell Structured SiO2@Carbon Composite Nanorods for High-Performance Lithium-Ion Batteries

Contact Info

Product

Resources

About

Amorphous SiO₂/C composite as anode material for lithium-ion batteries