Scalable Upcycling Silicon from Waste Slicing Sludge for High-performance Lithium-ion Battery Anodes

Bao, Qi; Huang, Yao-Hui; Lan, Chun-Kai; Chen, Bing-Hong; Duh, Jenq‐Gong

doi:10.1016/j.electacta.2015.04.155

Cited by 45 publications

(13 citation statements)

References 44 publications

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“…To solve these problems, many researchers, including the authors of this paper, have been attempting to use waste silicon powders from semiconductor manufacturing processes as a raw material for LIB anodes [37][38][39][40][41][42][43]. During Si ingot slicing for wafer manufacturing, a large quantity of waste Si powder is produced.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Pillar Size on the Electrochemical Performance of Laser-Induced Silicon Micropillars as Anodes for Lithium-Ion Batteries

et al. 2019

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Silicon micropillars with tunable sizes are successfully fabricated on copper foils by using nanosecond-pulsed laser irradiation and then used as anodes for lithium-ion batteries. The size of the silicon micropillars is manipulated by using different slurry layer thicknesses ranging from a few microns to tens of microns. The effects of the pillar size on electrochemical properties are thoroughly investigated. The smaller the pillars, the better the electrochemical performance. A capacity of 1647 mAh g−1 at 0.1 C current rate is achieved in the anode with the smallest pillars, with 1215, 892, and 582 mAh g−1 at 0.2, 0.5, and 1.0 C, respectively. Although a significant difference in discharge capacity is observed in the early period of cycling among micropillars of different sizes, this discrepancy becomes smaller as a function of the cycle number. Morphological studies reveal that the expansion of micropillars occurred during long-term cycling, which finally led to the formation of island-like structures. Also, the formation of a solid electrolyte interphase film obstructs Li+ diffusion into Si for lithiation, resulting in capacity decay. This study demonstrates the importance of minimizing the pillar size and optimizing the pillar density during anode fabrication.

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Section: Introductionmentioning

confidence: 99%

Effect of the Pillar Size on the Electrochemical Performance of Laser-Induced Silicon Micropillars as Anodes for Lithium-Ion Batteries

et al. 2019

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“…Thus, Si nanoparticles have been prepared from Si sawdust for LIBs, by means of plasma jet treatment 18 , ultrasonic spray-draying 19 , and high energy ball milling 20 . They show high capacity (1000–2000 mAh g −1 ) at early cycles, but the capacity is faded by 50–150 cycles 18 19 20 , and the cyclability should be improved much more for practical application. The reason for the insufficient cyclability could be the morphology of the materials prepared from Si sawdust, i.e.…”

mentioning

confidence: 99%

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

Kasukabe

Nishihara

Kimura

et al. 2017

Sci Rep

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Nowadays, ca. 176,640 tons/year of silicon (Si) (>4N) is manufactured for Si wafers used for semiconductor industry. The production of the highly pure Si wafers inevitably includes very high-temperature steps at 1400–2000 °C, which is energy-consuming and environmentally unfriendly. Inefficiently, ca. 45–55% of such costly Si is lost simply as sawdust in the cutting process. In this work, we develop a cost-effective way to recycle Si sawdust as a high-performance anode material for lithium-ion batteries. By a beads-milling process, nanoflakes with extremely small thickness (15–17 nm) and large diameter (0.2–1 μm) are obtained. The nanoflake framework is transformed into a high-performance porous structure, named wrinkled structure, through a self-organization induced by lithiation/delithiation cycling. Under capacity restriction up to 1200 mAh g−1, the best sample can retain the constant capacity over 800 cycles with a reasonably high coulombic efficiency (98–99.8%).

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“…One of the main problems of Si is its large volume fluctuation with a repetitive lithiation/delithiation process, which leads to pulverization of the Si particles, which in turn causes fast capacity fading during cycling 13 . Another problem is that a solid electrolyte interface (SEI) film will be repeatedly formed at each cycle because of the exposure to the newly created fresh surface of the Si associated with the repeated volume changes during cycling 14 15 . These two restrictions create low coulombic efficiency and poor cycling stability of the Si anode electrode.…”

mentioning

confidence: 99%

“…The Si-GR hybrid materials are expected to improve the electrochemical performances of Si: acceptable volume change of Si particles and high electrical conductivity in the presence of the GR matrix. Recently, a few studies were conducted to produce Si-GR composites using commercial Si nanoparticles for LIBs using chemical reduction in a liquid-phase reaction, steam etching, and ball milling 14 20 21 . Yi et al .…”

mentioning

confidence: 99%

One-Step Formation of Silicon-Graphene Composites from Silicon Sludge Waste and Graphene Oxide via Aerosol Process for Lithium Ion Batteries

Kim

Chang

et al. 2016

Sci Rep

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Over 40% of high-purity silicon (Si) is consumed as sludge waste consisting of Si, silicon carbide (SiC) particles and metal impurities from the fragments of cutting wire mixed in ethylene glycol based cutting fluid during Si wafer slicing in semiconductor fabrication. Recovery of Si from the waste Si sludge has been a great concern because Si particles are promising high-capacity anode materials for Li ion batteries. In this study, we report a novel one-step aerosol process that not only extracts Si particles but also generates Si-graphene (GR) composites from the colloidal mixture of waste Si sludge and graphene oxide (GO) at the same time by ultrasonic atomization-assisted spray pyrolysis. This process supports many advantages such as eco-friendly, low-energy, rapid, and simple method for forming Si-GR composite. The morphology of the as-formed Si-GR composites looked like a crumpled paper ball and the average size of the composites varied from 0.6 to 0.8 μm with variation of the process variables. The electrochemical performance was then conducted with the Si-GR composites for Lithium Ion Batteries (LIBs). The Si-GR composites exhibited very high performance as Li ion battery anodes in terms of capacity, cycling stability, and Coulombic efficiency.

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Scalable Upcycling Silicon from Waste Slicing Sludge for High-performance Lithium-ion Battery Anodes

Cited by 45 publications

References 44 publications

Effect of the Pillar Size on the Electrochemical Performance of Laser-Induced Silicon Micropillars as Anodes for Lithium-Ion Batteries

Effect of the Pillar Size on the Electrochemical Performance of Laser-Induced Silicon Micropillars as Anodes for Lithium-Ion Batteries

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

One-Step Formation of Silicon-Graphene Composites from Silicon Sludge Waste and Graphene Oxide via Aerosol Process for Lithium Ion Batteries

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