Controlled synthesis of nanosized Si by magnesiothermic reduction from diatomite as anode material for Li-ion batteries

Guo, Liang; Zhang, Shiyun; Xie, Jian; Zhen, Dong; Jin, Yuan; Wan, Kang-yan; Zhuang, Dagao; Zheng, Wenquan; Zhao, Xinbing

doi:10.1007/s12613-019-1900-z

Cited by 30 publications

(17 citation statements)

References 40 publications

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“…Longer reaction time can lead to the lower amount of Mg 2 Si. However, excessive reaction time may result in the exhaustion of Mg, leading to the formation of MgO and Mg silicates, as well as the sintering of both MgO and silicon (Waitzinger et al, 2015;Yan and Guo, 2019;Guo et al, 2020).…”

Section: Temperature and Time (Phase Transition Of Products Under Difmentioning

confidence: 99%

Mechanisms and Product Options of Magnesiothermic Reduction of Silica to Silicon for Lithium-Ion Battery Applications

Tan

Jiang

2021

Front. Energy Res.

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Lithium-ion batteries (LIBs) have been one of the most predominant rechargeable power sources due to their high energy/power density and long cycle life. As one of the most promising candidates for the new generation negative electrode materials in LIBs, silicon has the advantages of high specific capacity, a lithiation potential range close to that of lithium deposition, and rich abundance in the earth’s crust. However, the commercial use of silicon in LIBs is still limited by the short cycle life and poor rate performance due to the severe volume change during Li++ insertion/extraction, as well as the unsatisfactory conduction of electron and Li+ through silicon matrix. Therefore, many efforts have been made to control and stabilize the structures of silicon. Magnesiothermic reduction has been extensively demonstrated as a promising process for making porous silicon with micro- or nanosized structures for better electrochemical performance in LIBs. This article provides a brief but critical overview of magnesiothermic reduction under various conditions in several aspects, including the thermodynamics and mechanism of the reaction, the influences of the precursor and reaction conditions on the dynamics of the reduction, and the interface control and its effect on the morphology as well as the final performance of the silicon. These outcomes will bring about a clearer vision and better understanding on the production of silicon by magnesiothermic reduction for LIBs application.

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Section: Temperature and Time (Phase Transition Of Products Under Difmentioning

confidence: 99%

Mechanisms and Product Options of Magnesiothermic Reduction of Silica to Silicon for Lithium-Ion Battery Applications

Tan

Jiang

2021

Front. Energy Res.

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“…The nanostructured Si possessing the framework of the precursor DE, subsequently played the role of a template for MnO 2 , therefore obtaining a nanocomposite for supercapacitor applications. Potential energy applications involving the use of diatomite as a precursor for silicon-based materials are mostly batteries 44,49,59,60,111 , photovoltaics, 112 supercapacitors 110 and thermoelectrics 36 as shown in Fig. 4.…”

Section: Precursor For Silicon Based Materials For Energy Applicationsmentioning

confidence: 99%

“…Over the past few years, a number of researchers working with silicon-based anode materials have included this silica type in their synthesis protocols. 49,59,60,62,63,111 The choice of this siliceous component is justied by earlier recommendations to produce silicon-based anodes with nanoscale morphologies capable of remedying setbacks with their bulk counterparts. 22,210 As the only naturally occurring siliceous material with attractive nanoscale morphology, DE presents a pathway to obtain nanostructured silicon based anodic materials or templates for other potential ones.…”

Section: Battery Technologymentioning

confidence: 99%

On the diatomite-based nanostructure-preserving material synthesis for energy applications

et al. 2021

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“…In addition, given their high energy density, LIBs will be an ideal choice for integration with renewable energy sources in grid-level energy storage systems, in which LIBs store the generated electrical energy for use with a minimal cost to end consumers when demanded [14]. In recent years, LIBs have been successfully developed, with remarkable improvements in performance [15][16][17]. Various excellent review articles have focused on the fundamentals and investigation of LIBs, which will not be discussed in detail in the present perspective, and interested readers that hope to obtain further details can refer to previously reported studies [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Applications of Lithium-Ion Batteries in Grid-Scale Energy Storage Systems

Chen¹,

Jin²,

et al. 2020

Trans. Tianjin Univ.

387

150

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In the electrical energy transformation process, the grid-level energy storage system plays an essential role in balancing power generation and utilization. Batteries have considerable potential for application to grid-level energy storage systems because of their rapid response, modularization, and flexible installation. Among several battery technologies, lithium-ion batteries (LIBs) exhibit high energy efficiency, long cycle life, and relatively high energy density. In this perspective, the properties of LIBs, including their operation mechanism, battery design and construction, and advantages and disadvantages, have been analyzed in detail. Moreover, the performance of LIBs applied to grid-level energy storage systems is analyzed in terms of the following grid services: (1) frequency regulation; (2) peak shifting; (3) integration with renewable energy sources; and (4) power management. In addition, the challenges encountered in the application of LIBs are discussed and possible research directions aimed at overcoming these challenges are proposed to provide insight into the development of grid-level energy storage systems.

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Controlled synthesis of nanosized Si by magnesiothermic reduction from diatomite as anode material for Li-ion batteries

Cited by 30 publications

References 40 publications

Mechanisms and Product Options of Magnesiothermic Reduction of Silica to Silicon for Lithium-Ion Battery Applications

Mechanisms and Product Options of Magnesiothermic Reduction of Silica to Silicon for Lithium-Ion Battery Applications

On the diatomite-based nanostructure-preserving material synthesis for energy applications

Applications of Lithium-Ion Batteries in Grid-Scale Energy Storage Systems

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