Si nanoparticles embedded in porous N-doped carbon fibers as a binder-free and flexible anode for high-performance lithium-ion batteries

Ji, Hengsong; Chen, Qi; Hua, Kang; Ma, Quanwei; Wang, Rui; Zhang, Longhai; Zhang, Chaofeng

doi:10.1016/j.jallcom.2022.168256

Cited by 10 publications

(5 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ID/IG ratio of SVC−11 is approxi 0.88, suggesting a relatively elevated level of graphitization. This enhanced graphit is advantageous as it contributes to the improvement of electrical conductivity wit carbon shell [35]. X-ray photoelectron spectroscopy (XPS) was performed to examine the elemental composition of SVC−11, as depicted in Figure 7.…”

Section: Materials Morphology Structure and Chemical Compositionmentioning

confidence: 99%

See 1 more Smart Citation

Recycling Silicon Waste from the Photovoltaic Industry to Prepare Yolk–Shell Si@void@C Anode Materials for Lithium–Ion Batteries

Liu

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

Silicon is considered to have significant potential for anode materials in lithium–ion batteries (LIBs) with a theoretical specific capacity of 4200 mAh g−1. However, the development of commercial applications is impacted by the volume shift that happens in silicon when charging and discharging. In this paper, a yolk–shell–structured Si@void@C anode material has been developed to address this problem. The silicon nanoparticle yolk material is obtained by recycling kerf loss (KL) Si waste from the process of slicing silicon block casts into wafers in the photovoltaic industry; the carbon shell is prepared by a hydrothermal method with glucose, and the sacrificial interlayer is Al2O3. The produced material is employed in the production of anodes, exhibiting a reversible capacity of 836 mAh g−1 at 0.1 A g−1 after 100 cycles, accompanied by a Coulomb efficiency of 71.4%. This study demonstrates an economical way of transforming KL Si waste into materials with an enhanced value for LIBs.

show abstract

Section: Materials Morphology Structure and Chemical Compositionmentioning

confidence: 99%

“…The I D /I G ratio of SVC−11 is approximately 0.88, suggesting a relatively elevated level of graphitization. This enhanced graphitization is advantageous as it contributes to the improvement of electrical conductivity within the carbon shell [35].…”

Section: Materials Morphology Structure and Chemical Compositionmentioning

confidence: 99%

Recycling Silicon Waste from the Photovoltaic Industry to Prepare Yolk–Shell Si@void@C Anode Materials for Lithium–Ion Batteries

Liu

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…The next generation of high-capacity anode materials (1000–4000 mA h g –1 ), including metals (Si, − Sn − ) and metal oxides (transition metal oxides (CuO, MnO 2 , Mn 2 O 3 , Fe 2 O 3 , and Co 3 O 4 ), have garnered a lot of attention recently. − Unfortunately, even at low current densities, their practical performance falls far short of expectations due to quick capacity fading. , According to studies, this issue is mainly brought about by the significant volume changes that these electrode materials undergo during the cycling processes. As a result, the electrode will continue to disintegrate and pulverize, creating a loss of electrical connections between surrounding particles .…”

Section: Introductionmentioning

confidence: 99%

“…The next generation of high-capacity anode materials (1000–4000 mA h g –1 ), including metals (Si, 8 − 10 Sn 11 − 13 ) and metal oxides (transition metal oxides (CuO, MnO 2 , Mn 2 O 3 , Fe 2 O 3 , and Co 3 O 4 ), have garnered a lot of attention recently. 14 − 22 Unfortunately, even at low current densities, their practical performance falls far short of expectations due to quick capacity fading.…”

Section: Introductionmentioning

confidence: 99%

Blackberry Seeds-Derived Carbon as Stable Anodes for Lithium-Ion Batteries

Bongu,

Khan,

Arsalan

et al. 2024

ACS Omega

View full text Add to dashboard Cite

The suitability of biocarbons derived from blackberry seeds as anode materials in lithium-ion batteries has been assessed for the first time. Blackberry seeds have antibacterial, anticancer, antidysentery, antidiabetic, antidiarrheal, and potent antioxidant properties and are generally used for herbal medical purposes. Carbon is extracted from blackberries using a straightforward carbonization technique and activated with KOH at temperatures 700, 800, and 900 °C. The physical characterization demonstrates that activated blackberry seeds-derived carbon at 900 °C (ABBSC-900 °C) have well-ordered graphene sheets with high defects compared to the ABBSC-700 °C and ABBSC-800 °C. It is discovered that an ABBSC-900 °C is mesoporous, with a notable Brunauer−Emmett−Teller surface area of 65 m 2 g −1 . ABBSC-900 has good electrochemical characteristics, as studied under 100 and 1000 mA g −1 discharge conditions when used as a lithium intercalating anode. Delivered against a 500 mA g −1 current density, a steady reversible capacity of 482 mA h g −1 has been achieved even after 200 cycles. It is thought that disordered mesoporous carbon with a large surface area account for the improved electrochemical characteristics of the ABBSC-900 anode compared to the other ABBSC-700 and ABBSC-800 carbons. The research shows how to use a waste product, ABBSC, as the most desired anode for energy storage applications.

show abstract

“…Moreover, as anode materials for LIBs, Si-based CNFs not only retain the high conductivity of graphite materials but also possess the high theoretical specific capacity of Si materials. Therefore, they not only exhibit excellent reversible capacity but also demonstrate relatively good cycling performance, making them the preferred approach for achieving efficient LIBs. − By reasonably optimizing the parameters of Si-based CNFs such as the carbon crystal structure, Si grain size, pore size, and porosity, the capacity and reversibility of anode materials can be further improved . However, these Si-based CNFs obtained by blending electrospinning exhibit some granular and mushroom-like structures after multiple charging and discharging cycles of LIBs, which is due to the significant swelling and shrinkage of Si NPs after repeated Li + insertion/extraction .…”

Section: Introductionmentioning

confidence: 99%

Self-Supporting Silicon-Based Hierarchical Carbon Nanofibers As Anodes for Lithium-Ion Batteries

Wang,

2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Si-based anodes have demonstrated significant potential for application in lithium-ion batteries (LIBs) owing to their high-energy density. Nevertheless, commercial application of Si-based anodes is hindered by their substantial volume expansion and poor conductivity. In this paper, a straightforward, efficient, and environmentally friendly method was proposed to prepare self-supporting Si-based hierarchical carbon nanofibers (Si@SiO x / HPCNFs) derived from coaxial electrospun nanofibers as high-performance anodes for LIBs. By introducing an oxide layer onto the surface of Si nanoparticles (NPs), the swelling of Si during charging and discharging was alleviated, and sufficient hydrogen bonds and active sites were provided for the adequate binding between Si@SiO x and precursors. Meanwhile, the hierarchical porous structure of carbon nanofibers (CNFs) provided sufficient space for the swelling of Si NPs in their core layer, and the shell layer of CNFs had a barrier effect to prevent direct contact between the electrolyte and Si NPs, thus facilitating Li + transport and ensuring the cyclic stability of the material. Accordingly, the Si@SiO x /HPCNF anode demonstrated a large reversible capacity (686.0 mAh g −1 ) after 100 cycles at 100 mA g −1 and retained its original fiber structure well, suggesting that the self-supporting Si@SiO x /HPCNF anode has great potential in advanced energy storage.

show abstract

Si nanoparticles embedded in porous N-doped carbon fibers as a binder-free and flexible anode for high-performance lithium-ion batteries

Cited by 10 publications

References 44 publications

Recycling Silicon Waste from the Photovoltaic Industry to Prepare Yolk–Shell Si@void@C Anode Materials for Lithium–Ion Batteries

Recycling Silicon Waste from the Photovoltaic Industry to Prepare Yolk–Shell Si@void@C Anode Materials for Lithium–Ion Batteries

Blackberry Seeds-Derived Carbon as Stable Anodes for Lithium-Ion Batteries

Self-Supporting Silicon-Based Hierarchical Carbon Nanofibers As Anodes for Lithium-Ion Batteries

Contact Info

Product

Resources

About