A self-driven alloying/dealloying approach to nanostructuring micro-silicon for high-performance lithium-ion battery anodes

Ma, Qiang; Zhao, Zhuqing; Zhao, Yan; Xie, Hongwei; Xing, Pengfei; Wang, Dihua; Yin, Huayi

doi:10.1016/j.ensm.2020.10.021

Cited by 77 publications

(38 citation statements)

References 64 publications

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“…Firstly, the specific surface area ( S ss ) was determined by N 2 -ADI measurements. As shown in Figure 6 , all the samples exhibited Type-IV isotherm curves (classified according to IUPAC), representing the distinctive mesoporous characteristics of the materials [ 33 , 70 ]. Through the BET analysis, the S ss values of the S-Si, R-Si, and B-Si nanocrystals were calculated to be 168.1, 212.4, and 265.6 m 2 /g, respectively.…”

Section: Resultsmentioning

confidence: 99%

Derivation of Luminescent Mesoporous Silicon Nanocrystals from Biomass Rice Husks by Facile Magnesiothermic Reduction

Lee

2021

Nanomaterials

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High-quality silicon (Si) nanocrystals that simultaneously had superior mesoporous and luminescent characteristics were derived from sticky, red, and brown rice husks via the facile and cost-effective magnesiothermic reduction method. The Si nanocrystals were confirmed to comprise an aggregated morphology with spherical nanocrystals (e.g., average sizes of 15–50 nm). Due to the surface functional groups formed at the nanocrystalline Si surfaces, the Si nanocrystals clearly exhibited multiple luminescence peaks in visible-wavelength regions (i.e., blue, green, and yellow light). Among the synthesized Si nanocrystals, additionally, the brown rice husk (BRH)-derived Si nanocrystals showed to have a strong UV absorption and a high porosity (i.e., large specific surface area: 265.6 m2/g, small average pore diameter: 1.91 nm, and large total pore volume: 0.5389 cm3/g). These are indicative of the excellent optical and textural characteristics of the BRH-derived Si nanocrystals, compared to previously reported biomass-derived Si nanocrystals. The results suggest that the biomass BRH-derived Si nanocrystals hold great potential as an active source material for optoelectronic devices as well as a highly efficient catalyst or photocatalyst for energy conversion devices.

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Section: Resultsmentioning

confidence: 99%

Derivation of Luminescent Mesoporous Silicon Nanocrystals from Biomass Rice Husks by Facile Magnesiothermic Reduction

Lee

2021

Nanomaterials

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“…In addition, there are many methods to synthesize porous materials. Metal‐assisted chemical etching, MgR, and dealloying are just a few of the procedures used to create porous Si [109–111] . Huabin Yang et al.…”

Section: Different Structural and Morphological Modifications Of Si−c...mentioning

confidence: 99%

Recent Research Progress of Silicon‐Based Anode Materials for Lithium‐Ion Batteries

Chen

et al. 2022

ChemistrySelect

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Silicon (Si)‐based materials have become one of the most promising anode materials for lithium‐ion batteries due to their high energy density, but in practice, lithium ions embedded in Si anode materials can lead to a maximum volume expansion of nearly three times, which can cause material chalking and shedding, thus affecting the battery cycle life, while the poor electrical conductivity of Si as a semiconductor material also restricts its further development. A lot of research has been carried out based on these problems. This paper reviews the recent research in three aspects: binder, Si surface structure function, and Si carbon composites, summarizes the research lines, methods, and problems of different Si‐based materials, and gives an outlook on their future research.

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“…Structure control is also an effective solution for the interface engineering toward high‐efficiency alloy anode due to the structure of electrode material play an important role on the interface properties and electrochemical performance of batteries 102 . Structure control strategies including core–shell, hollow structure, and porous architecture have been widely explored for alloy anode to mitigate several issues related to volume variation 103–108 . Cho et al designed an ultrathin Si‐coated calendering‐compatible macroporous carbon (MPC)–graphite architecture with an elastic outermost carbon shell (C/Si@MPC‐G) structure as anode 109 .…”

Section: Interface Engineering Strategies Toward Improved Performancementioning

confidence: 99%

Interface engineering towardhigh‐efficiencyalloy anode for next‐generation energy storage device

Wang

Tang

2021

EcoMat

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Alloy materials are considered as the promising anodes for next‐generation energy storage devices attributed to their high theoretical capacities and suitable working voltage. However, further commercialization is hindered by their remarkable volume change during cycling. The interface engineering has been proposed as an effective strategy to alleviate the volume expansion and improve the electrochemical performance of alloy anode. In this review, we discuss the failure mechanisms for alloy anode during charging/discharging processes. Then the mechanisms of interface engineering for alloy anode were proposed. Next, the interface engineering strategies for alloy anode such as artificial solid electrolyte interphase (SEI), structure control, and electrolyte composition design toward improved performance were summarized. Finally, the challenge and perspective of interface engineering of alloy anodes was discussed. This review may promote the development of alloy anode with improved electrochemical performance for practical renewable energy applications.image

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A self-driven alloying/dealloying approach to nanostructuring micro-silicon for high-performance lithium-ion battery anodes

Cited by 77 publications

References 64 publications

Derivation of Luminescent Mesoporous Silicon Nanocrystals from Biomass Rice Husks by Facile Magnesiothermic Reduction

Derivation of Luminescent Mesoporous Silicon Nanocrystals from Biomass Rice Husks by Facile Magnesiothermic Reduction

Recent Research Progress of Silicon‐Based Anode Materials for Lithium‐Ion Batteries

Interface engineering towardhigh‐efficiencyalloy anode for next‐generation energy storage device

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