Application of recycled Si from industrial waste towards Si/rGO composite material for long lifetime lithium-ion battery

Pham, Tuan Kiet; Shin, Ji Hye; Karima, Neema Cyril; Jun, Yun Seok; Jeong, Soon-Ki; Cho, Namchul; Lee, Young-Woo; Cho, Younghyun; Lim, Sung Nam; Ahn, Wook

doi:10.1016/j.jpowsour.2021.230244

Cited by 21 publications

(4 citation statements)

References 54 publications

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“…In addition, the Si/SiOC electrode exhibits a low Warburg slope owing to its low Li ion diffusivity compared to that of the Si/rGO/SiOC electrode. 64,65 This proves that the electrical conductivity was improved by the presence of a small amount of rGO, and volumetric expansion was effectively suppressed by the SiOC matrix.…”

Section: Resultsmentioning

confidence: 75%

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Park

Kim

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 75%

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Park

Kim

et al. 2023

J. Mater. Chem. A

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“…The peak deconvolution of the XPS spectra was conducted based on previous literature reports. [11,20,33,[62][63][64][65][66] As for the C 1s spectra (Figure 3c), the SiNP/GO composite shows a dominant C─O peak and a C═O shoulder peak, while the SiNP/LSG has very small C─O and C═O peaks. Therefore, GO has been successfully reduced to LSG by the laser irradiation process.…”

Section: Physical and Chemical Properties Of Si/lsg Compositesmentioning

confidence: 99%

“…[8][9][10] One of the biggest challenges of the Si anode is its poor cyclability. [6,8,11,12] The large volume expansion of Si during the phase transition through lithiation and de-lithiation processes (≈300%) pulverizes Si particles, creating fresh surfaces where solid-electrolyte interface (SEI) layers grow. This leads to the continuous fragmentation and regrowth of SEI layers which comprises energy storage capacity.…”

Section: Introductionmentioning

confidence: 99%

A Rapid, Scalable Laser‐Scribing Process to Prepare Si/Graphene Composites for Lithium‐Ion Batteries

Katsuyama,

Yang,

Thiel

et al. 2024

Small

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Silicon has gained significant attention as a lithium‐ion battery anode material due to its high theoretical capacity compared to conventional graphite. Unfortunately, silicon anodes suffer from poor cycling performance caused by their extreme volume change during lithiation and de‐lithiation. Compositing silicon particles with 2D carbon materials, such as graphene, can help mitigate this problem. However, an unaddressed challenge remains: a simple, inexpensive synthesis of Si/graphene composites. Here, a one‐step laser‐scribing method is proposed as a straightforward, rapid (≈3 min), scalable, and less‐energy‐consuming (≈5 W for a few minutes under air) process to prepare Si/laser‐scribed graphene (LSG) composites. In this research, two types of Si particles, Si nanoparticles (SiNPs) and Si microparticles (SiMPs), are used. The rate performance is improved after laser scribing: SiNP/LSG retains 827.6 mAh g−1 at 2.0 A gSi+C−1, while SiNP/GO (before laser scribing) retains only 463.8 mAh g−1. This can be attributed to the fast ion transport within the well‐exfoliated 3D graphene network formed by laser scribing. The cyclability is also improved: SiNP/LSG retains 88.3% capacity after 100 cycles at 2.0 A gSi+C−1, while SiNP/GO retains only 57.0%. The same trend is found for SiMPs: the SiMP/LSG shows better rate and cycling performance than SiMP/GO composites.

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“…Some studies have reported that coating or doping can effectively reduce the large volume changes and the subsequent accumulation of excessive stress during lithiation-delithiation cycles [15][16][17][18][19]. Especially, Si nanospheres are combined with carbon materials, a strategy that aims to provide extra space to accommodate volumes' expansion and improve the electrical conductivity of the electrode, such as Si/ reduced graphene oxide (rGO) and Si/Carbon Nanotube (CNT) [20][21][22]. However, the size gap between Si nanospheres and rGO sheets is large, and Si nanospheres tend to agglomerate and do not easily migrate uniformly into the rGO sheets to form a stable structure.…”

Section: Introductionmentioning

confidence: 99%

Sea Urchin-like Si@MnO2@rGO as Anodes for High-Performance Lithium-Ion Batteries

Liu

Wang

et al. 2022

Nanomaterials

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Si is a promising material for applications as a high-capacity anode material of lithium-ion batteries. However, volume expansion, poor electrical conductivity, and a short cycle life during the charging/discharging process limit the commercial use. In this paper, new ternary composites of sea urchin-like Si@MnO2@reduced graphene oxide (rGO) prepared by a simple, low-cost chemical method are presented. These can effectively reduce the volume change of Si, extend the cycle life, and increase the lithium-ion battery capacity due to the dual protection of MnO2 and rGO. The sea urchin-like Si@MnO2@rGO anode shows a discharge specific capacity of 1282.72 mAh g−1 under a test current of 1 A g−1 after 1000 cycles and excellent chemical performance at different current densities. Moreover, the volume expansion of sea urchin-like Si@MnO2@rGO anode material is ~50% after 150 cycles, which is much less than the volume expansion of Si (300%). This anode material is economical and environmentally friendly and this work made efforts to develop efficient methods to store clean energy and achieve carbon neutrality.

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Application of recycled Si from industrial waste towards Si/rGO composite material for long lifetime lithium-ion battery

Cited by 21 publications

References 54 publications

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

A Rapid, Scalable Laser‐Scribing Process to Prepare Si/Graphene Composites for Lithium‐Ion Batteries

Sea Urchin-like Si@MnO2@rGO as Anodes for High-Performance Lithium-Ion Batteries

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