Tailoring the interfaces of silicon/carbon nanotube for high rate lithium-ion battery anodes

Zhang, Ziqi; Han, Xiang; Li, Lianchuan; Su, Pengfei; Huang, Wei; Wang, Jianyuan; Xu, Jianfang; Li, Cheng; Chen, Songyan; Yang, Yong

doi:10.1016/j.jpowsour.2019.227593

Cited by 58 publications

(35 citation statements)

References 49 publications

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“…Interestingly, in the process of CVD preparation, Cu 3 Si patches formed from Si and Cu were able to stabilize the contact points due to their conductive and chemical inert. [ 141 ] Compared with other micron Si anode materials, this PMSi/CNT/C anode owned higher specific capacity and better cycle stability (Figure 10J‐M).…”

Section: Contact Engineeringmentioning

confidence: 99%

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The influence of contact engineering on silicon‐based anode for li‐ion batteries

Chen

Liu

2020

Nano Select

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Silicon is considered as the desirable anode material for lithium‐ion batteries due to its suitable discharge potential, abundant reserve, and ultra‐high specific capacity. However, poor conductivity and unstable battery performance caused by large volume change during cycling limit the further development of silicon anode. In order to avoid the unstable solid electrolyte interface layer caused by the direct contact between silicon and electrolyte, and to eliminate the structural collapse caused by the volume change during cycling, dimension size reduction, reserved voids, and novel structural framework are usually adopted. Although these methods can effectively improve the defects, a new problem is introduced and cannot be ignored: contact engineering between the coating layer and silicon core. Herein, contact engineering is classified into three categories: face to face (F2F), line to line (L2L), and point to point (P2P) according to the contact modes between the coating and core. There is utilizability of the structure categories of different contact modes and their influence on electrochemical performance. Therefore, in the future research of silicon anode, contact engineering is a non‐negligible aspect in the structural design process. Finally, feasible strategies based on contact engineering have been indicated.

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Section: Contact Engineeringmentioning

confidence: 99%

Section: Contact Engineeringmentioning

confidence: 99%

The influence of contact engineering on silicon‐based anode for li‐ion batteries

Chen

Liu

2020

Nano Select

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“…The resulting electrode showed a promising rate performance (463 mAh g À at A g À 1 ). [264] In addition, Si/C nanocomposites with yolk-shell structure were synthesised and applied as active materials in anodes recently. [265] This unique structure overcame the poor conductivity and cyclic stability caused by Si, because the internal Si particles expanded/shrunk freely within a well-confined space without damaging the exterior carbon shell.…”

Section: Other Anode Materialsmentioning

confidence: 99%

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

“…As shown in Figure c, when the mechanical fracture of PMSi occurred, CNTs could still connect the fractured silicon pieces because one end of the CNT was embedded in the carbon shell while the other was fixed in the holes on the silicon surface by Cu 3 Si silicide. The resulting electrode showed a promising rate performance (463 mAh g −1 at 20 A g −1 ) . In addition, Si/C nanocomposites with yolk‐shell structure were synthesised and applied as active materials in anodes recently .…”

Section: Acceleration Of Electrochemical Kinetics By Nanotechnologymentioning

confidence: 99%

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Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Zhou

et al. 2020

ChemSusChem

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techniques, based on either electrochemical or radiology methodologies, are covered as well. In addition, state-of-the-art research findings are provided to illustrate the effect of nanomaterials and nanostructures in promoting the rate performance of lithium ion batteries. Finally, several challenges and shortcomings of applying nanotechnology in fabricating highrate lithium ion batteries are summarised.

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Dispersant‐Free Colloidal and Interfacial Engineering of Si‐Nanocarbon Hybrid Anode Materials for High‐Performance Li‐Ion Batteries

Lee,

Cho,

Kim

et al. 2023

Adv Funct Materials

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Highly conducting nanomaterials have garnered significant attention owing to their potential application in Li‐ion batteries for stable electrodes. However, concerns persist regarding their dispersion and effective hybridization with active materials. This study reports a novel approach to enhance Si‐based anode materials using less defective graphene oxide (C‐GO) and highly oxidized single‐walled carbon nanotubes (C‐SWCNTs) fabricated using chlorate‐based oxidation. The method involves encapsulating Si alloy (SiA) particles with C‐GO and C‐SWCNTs, eliminating the need for additional additives. Composite structures with lithiophilic N‐doped SWCNTs and highly crystalline reduced C‐GO coatings on SiA surfaces are created through spray drying and subsequent chemical reduction. This unique combination yields high capacities, stable retention behaviors, and remarkable initial capacities (1224 mAh g−1) with excellent retention rates (82.3% at 100 cycles, 0.1 C). A LIB full‐cell with a SiA/nanocarbon anode exhibited a high energy density of 350 Wh kg−1, while maintaining 65% capacity retention after 200 cycles. The findings demonstrate the potential of this hybrid approach, which eliminates the need for other conducting additives while maintaining a minimal binder content (5 wt.%). This study presents a promising approach for enhancing Si‐based anode materials in lithium‐ion batteries, addressing the dispersion and hybridization challenges in nanomaterial‐enabled electrode design.

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Tailoring the interfaces of silicon/carbon nanotube for high rate lithium-ion battery anodes

Cited by 58 publications

References 49 publications

The influence of contact engineering on silicon‐based anode for li‐ion batteries

The influence of contact engineering on silicon‐based anode for li‐ion batteries

Recent Developments of Nanomaterials and Nanostructures for High‐Rate Lithium Ion Batteries

Dispersant‐Free Colloidal and Interfacial Engineering of Si‐Nanocarbon Hybrid Anode Materials for High‐Performance Li‐Ion Batteries

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