Small highly mesoporous silicon nanoparticles for high performance lithium ion based energy storage

Wu, Yen‐Ju; Chen, Yuan; Huang, Chun‐Lung; Su, Jing‐Ting; Hsieh, Cheng‐Ting; Lu, Shih‐Yuan

doi:10.1016/j.cej.2020.125958

Cited by 41 publications

(21 citation statements)

References 53 publications

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“…This deleterious volume change stimulated the development of Si nanomaterials, because Si at the nano scale can withstand swelling without fracture during LiB cycling. This has been demonstrated for a variety of morphologies including Si nanoparticles (SiNP) [ 6 , 7 , 8 , 9 , 10 , 11 ], Si nanowires (SiNW) [ 3 , 12 , 13 , 14 ], Si nanotubes [ 15 , 16 ], and Si porous nanomaterials [ 17 , 18 , 19 ]. However, nanostructuration can be a costly process that needs to be carefully optimized for a dedicated application.…”

Section: Introductionmentioning

confidence: 99%

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

et al. 2021

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Silicon is a promising material for high-energy anode materials for the next generation of lithium-ion batteries. The gain in specific capacity depends highly on the quality of the Si dispersion and on the size and shape of the nano-silicon. The aim of this study is to investigate the impact of the size/shape of Si on the electrochemical performance of conventional Li-ion batteries. The scalable synthesis processes of both nanoparticles and nanowires in the 10–100 nm size range are discussed. In cycling lithium batteries, the initial specific capacity is significantly higher for nanoparticles than for nanowires. We demonstrate a linear correlation of the first Coulombic efficiency with the specific area of the Si materials. In long-term cycling tests, the electrochemical performance of the nanoparticles fades faster due to an increased internal resistance, whereas the smallest nanowires show an impressive cycling stability. Finally, the reversibility of the electrochemical processes is found to be highly dependent on the size/shape of the Si particles and its impact on lithiation depth, formation of crystalline Li15Si4 in cycling, and Li transport pathways.

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Section: Introductionmentioning

confidence: 99%

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

et al. 2021

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“…The rational design of an anode has been considered as an effective strategy to enhance Si-based lithium-ion batteries' performances [13,14]. 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].…”

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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“…Lithium-ion batteries (LIBs) have become the mainstay of energy storage devices due to their high energy density, excellent cycling performance, flexible and lightweight design. [1][2][3][4][5] It is precisely because of the above characteristics that LIBs are widely used in many fields, such as hybrid electrical vehicles, grid-scale batteries, new power-intensive devices, smart grid and so on. [6][7][8][9][10][11] The choice of anode material plays an important role in improving the performance of lithium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

“…In order to solve these issues, tremendous efforts have been made to improve the conductivity and structural stability of WO 3 . In recent years, researchers have been pursuing to reduce the size of WO 3 and synthesize low-dimensional structure to improve the rate and cycle performance of LIBs.…”

Section: Introductionmentioning

confidence: 99%

Embedded Double One‐Dimensional Composites of WO₃@N‐Doped Carbon Nanofibers for Superior and Stabilized Lithium Storage

Yang

et al. 2022

ChemElectroChem

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Tungsten oxide has received plenty of attention as a potential anode material for lithium-ion batteries (LIBs) due to the high intrinsic density and abundant framework diversity. However, the tremendous structural and volumetric changes of tungsten oxide (WO 3 ) restrict the commercial application. A novel embedded one-dimensional (1D) structure composite of the WO 3 and N-doped carbon nanofibers (WO 3 @N-CNFs) has been prepared by combining convenient hydrothermal and electrospinning processes. The WO 3 nanowires are firmly wrapped in the N-CNFs and formed an embedded double 1D structure, which can significantly improve the structure stability of the composite. Therefore, the WO 3 @N-CNFs delivers a high specific capacity of 960 mAh/g after 300 cycles at 0.2 A/g, and 550 mAh/g after 1300 cycles at 2 A/g. Moreover, the initial Coulomb efficiency of WO 3 @N-CNFs is enhanced to more than 80 %. The electrochemical performance is better than those from most WO 3 -based carbon composite materials, which can be ascribed to the synergy effects of the WO 3 nanorods and the nitrogen doping in 1D carbon nanofibers. As a consequence, the WO 3 @N-CNFs can be a promising anode material with the extraordinary long-term cycling performance at high current densities, and provide a new idea for the commercialization of WO 3 -based carbon composite materials.

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Small highly mesoporous silicon nanoparticles for high performance lithium ion based energy storage

Cited by 41 publications

References 53 publications

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

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

Embedded Double One‐Dimensional Composites of WO₃@N‐Doped Carbon Nanofibers for Superior and Stabilized Lithium Storage

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Small highly mesoporous silicon nanoparticles for high performance lithium ion based energy storage

Cited by 41 publications

References 53 publications

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

Effect of Size and Shape on Electrochemical Performance of Nano-Silicon-Based Lithium Battery

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

Embedded Double One‐Dimensional Composites of WO3@N‐Doped Carbon Nanofibers for Superior and Stabilized Lithium Storage

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Embedded Double One‐Dimensional Composites of WO₃@N‐Doped Carbon Nanofibers for Superior and Stabilized Lithium Storage