Porous carbon-coated silica macroparticles as anode materials for lithium ion batteries: Effect of boric acid

Kim, Young-Kuk; Moon, Jong-Woo; Lee, Jung Goo; Baek, Youn-Kyung; Hong, Seong-Hyun

doi:10.1016/j.jpowsour.2014.08.128

Cited by 43 publications

(16 citation statements)

References 28 publications

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“…After 50 cycles two broad derivative peaks appear in discharge around 0.1 and 0.4 V, and in charge around 0.2 and 0.6 V sign that the reaction between the electrode and the electrolyte has started. In the literature, these positions are assigned to the formation of lithium silicates (Li x SiO y )/Li 2 O (bellow 0.4 V) and also to Li-Si alloy (Li 15 Si 4 , 0.25e0.45 V) [22,34,35] and mainly depend of the characteristics of SiO 2 material.…”

Section: Methodsmentioning

confidence: 99%

“…Liu et al [21] synthesized SiO 2 shells covered by carbon through hydrolysis of TEOS, followed by the addition of sucrose dissolved in an acidic water/ethanol solution, ultrasonication and heat treatment in Ar at 800 C. The reversible capacity continuously increased during the 160 cycles studied, reaching a maximum of 649 mAhg À1 for an optimum SiO 2 /carbon ratio adjusted by sucrose variation. Preparation of carbon-coated porous silica particles was also reported as anode for Li-ion batteries [22]. The SiO 2 particles preparation involved a silica source (TEOS), several polymeric templates, centrifugation, hexane washing and calcinations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

Niță

Fullenwarth

Monconduit

et al. 2019

Carbon

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A fast, simple and environmentally friendly one-pot route to obtain carbon/SiO 2 hybrid materials is reported in this work. This consists in simple mixture of carbon and silica precursors, followed by thermal annealing at different temperatures. An interpenetrating hybrid network composed of hard carbon and amorphous SiO 2 nanoparticles (2e5 nm) homogeneously distributed was achieved. Increasing the annealing temperature from 600 C up to 1200 C, the material porosity and oxygen functional groups are gradually removed, while the amorphous nature of SiO 2 is conserved. This allows to diminish the irreversible capacity during the first charge-discharge cycle and to increase the reversible capacity. An excellent cycling capability, with a reversible capacity up to 535 mA hg-1 at C/5 constant current rate was obtained for C/SiO 2 materials used as anodes for Li-ion batteries. An atypical increase of the capacity during the first 50 cycles followed by a stable plateau up to 250 cycles was observed and related to electrolyte wettability limitation through the materials, particularly for those annealed at high temperatures which are more hydrophobic, less porous and the SiO 2 nanoparticles less accessible. The SiO 2 lithiation mechanism was evaluated by XRD, TEM and XPS post-mortem analyses and revealed the formation of reversible lithium silicate phases.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

Niță

Fullenwarth

Monconduit

et al. 2019

Carbon

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show abstract

“…Liu et al discussed a similar state as that explained by Wu et al, 133 which has a low specific capacity and CE in the first cycle due to incomplete electrochemical reactions. In contrast, a gradual increase in capacity was described by Yan et al 20 and Kim, 164 which is due to the gradual growth of the Si phase during lithiation/ delithiation.…”

Section: Sio 2 Content In Composite Sio 2 /Cmentioning

confidence: 93%

A Review: The Development of SiO2/C Anode Materials for Lithium-Ion Batteries

Ja’farawy

Hikmah

Riyadi

et al. 2021

J. Electron. Mater.

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Lithium-ion batteries are promising energy storage devices used in several sectors, such as transportation, electronic devices, energy, and industry. The anode is one of the main components of a lithium-ion battery that plays a vital role in the cycle and electrochemical performance of a lithium-ion battery, depending on the active material. Recently, SiO 2 has garnered attention for use as an anode in lithium-ion batteries. SiO 2 has a high specific capacity, good cycle stability, abundance, and low-cost processing. However, the high expansion and shrinkage of the SiO 2 volume during lithiation/delithiation, low conductivity, and solid electrolyte interphase formation resulted in damage to the electrode structure and caused a decrease in SiO 2 performance as an anode for a lithium-ion battery. The modified properties of SiO 2 and the use of carbon materials as composites of SiO 2 are effective strategies to overcome these problems. This review focuses on analyzing the role of various carbon materials in composite SiO 2 /C to enhance the performance of SiO 2 materials.

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“…Then aer about 20 cycles, the specic capacity began to increase gradually. This is because the gradual increase in the Si phase during the late lithiation-delithiation cycle, 44,45 and the Li 4 SiO 4 matrix formed by the reaction 2 alleviate the volume expansion during the cycle. Therefore, as shown in Fig.…”

Section: Electrochemical Performancementioning

confidence: 99%

Preparation of SiO₂nanowire arrays as anode material with enhanced lithium storage performance

Wang

et al. 2018

RSC Adv.

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Porous carbon-coated silica macroparticles as anode materials for lithium ion batteries: Effect of boric acid

Cited by 43 publications

References 28 publications

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

A Review: The Development of SiO2/C Anode Materials for Lithium-Ion Batteries

Preparation of SiO₂nanowire arrays as anode material with enhanced lithium storage performance

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Porous carbon-coated silica macroparticles as anode materials for lithium ion batteries: Effect of boric acid

Cited by 43 publications

References 28 publications

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

Eco-friendly synthesis of SiO2 nanoparticles confined in hard carbon: A promising material with unexpected mechanism for Li-ion batteries

A Review: The Development of SiO2/C Anode Materials for Lithium-Ion Batteries

Preparation of SiO2nanowire arrays as anode material with enhanced lithium storage performance

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Product

Resources

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Preparation of SiO₂nanowire arrays as anode material with enhanced lithium storage performance