Recent advances and perspectives of 2D silicon: Synthesis and application for energy storage and conversion

An, Yongling; Tian, Yuan; Wei, Chuanliang; Zhang, Yuchan; Xiong, Shenglin; Feng, Jinkui; Qian, Yitai

doi:10.1016/j.ensm.2020.07.006

Cited by 89 publications

(56 citation statements)

References 244 publications

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“…The most important aspect for the dimensionality matching includes enhancing electronic conduction between the interface of different dimensions and ensuring dynamic interface adaptation during volume change in cycling noncarbons. [ 48 ]…”

Section: Dimensionality Manipulation Of Functional Carbon Materials In Energy Storagementioning

confidence: 99%

Dimensionality, Function and Performance of Carbon Materials in Energy Storage Devices

Xiao

Han

Zhang

et al. 2021

Advanced Energy Materials

119

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Carbon materials show their importance in electrochemical energy storage (EES) devices as key components of electrodes, such as active materials, conductive additives and buffering frameworks. To meet the requirements of vastly developing markets related to EES, especially for electric vehicles and large scale energy storage, the rational design of functional carbon materials with the basis of a deep understanding of the structure‐property relationships is demanded, in which dimensionality variations and hybridizations of the carbon materials play critical roles in improving electrochemical performances of EES devices. This review focuses on the dimensionality manipulation in functional carbon materials, including transition, matching and integration, to optimize the reaction space, interface and framework in electrodes, respectively. This review gives a comprehensive review on how the dimensionality manipulation improves performance of the carbon‐based electrodes in kinetics optimization, electron transfer acceleration, mechanical stabilization and thermal dissipation upon charging/discharging. The report ends with a critical perspective on the future challenges facing carbon‐based electrodes with dimensionality dependence. The progress highlighted here is expected to provide a guidance for the precise design and targeted synthesis of dimensionality varied carbon‐based electrode materials towards safe and high performance EES devices and the resulting optimized energy deployments.

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Section: Dimensionality Manipulation Of Functional Carbon Materials In Energy Storagementioning

confidence: 99%

Dimensionality, Function and Performance of Carbon Materials in Energy Storage Devices

Xiao

Han

Zhang

et al. 2021

Advanced Energy Materials

119

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“…), which may destroy the structure of 2D Si due to its strong interaction with the substrates. [ 35 ] 2D Si can also be synthesized from the precursors with layered structures by the chemical exfoliation process. [ 21–23,27 ] Because of the Van der Waals force between layers, however, it is difficult to obtain thin Si nanosheets (Si‐NSs, commonly tens of nanometers).…”

Section: Introductionmentioning

confidence: 99%

“…[ 21–23,27 ] Because of the Van der Waals force between layers, however, it is difficult to obtain thin Si nanosheets (Si‐NSs, commonly tens of nanometers). [ 35 ] In addition, 2D Si is usually coated with carbon by CVD or hydrothermal method, which leads to the aggregation/accumulation of nanosheets, thus significantly increasing their thickness. Furthermore, the inert silicon carbide phase tends to be formed due to the reaction between Si and the decomposed carbon sources in the reducing atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin Si Nanosheets Dispersed in Graphene Matrix Enable Stable Interface and High Rate Capability of Anode for Lithium‐ion Batteries

Ren

Xiang

Yin

et al. 2022

Adv Funct Materials

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Owing to the thinness and large lateral size, 2D Si materials exhibit very promising prospects as the high-performance anodes of lithium-ion batteries (LIBs). However, the facile synthesis of ultrathin 2D Si nanosheets (Si-NSs) and their efficient application still remain a great challenge. Herein, the fabrication of ultrathin Si-NSs with the average thickness of <2 nm is demonstrated using a unique etching-reduction protocol. After hybridizing with graphene, the as-prepared Si-NSs@rGO material delivers ultrahigh rate capability (2395.8 mAh g −1 at 0.05 A g −1 and 1727.3 mAh g −1 at 10 A g −1 ), long cycling lifespan (1000 cycles at 2 A g −1 with a capacity decay rate of 0.05% per cycle) and high average Coulombic efficiency (99.85% during 1000 cycles). The superior performance is attributed to the ultrathinness of Si-NSs that greatly improves the diffusivity and reversibility of Li + ions. This work provides a strategy for fabricating a high-rate-capability anode material to meet the growing demand for high power density LIBs.

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“…To address the issues associated with Si, especially volume expansion, massive efforts have been made, including: avoiding materials pulverization via the design of silicon nanostructures, ( An et al, 2020 ; Qi et al, 2020 ; Sun et al, 2022a ; Sun et al, 2022b ; Li et al, 2022 ) improving cycling stability through SiO/SiO x -based anode materials, ( Wang et al, 2020a ; Tian et al, 2022 ) and increasing electronic/ionic conductivities through utilizing advanced electrolyte additives and novel binders. ( Huang et al, 2019 ; Zhao et al, 2021 ; Zhou et al, 2021 ; Zhu et al, 2021 ) The 3D porous Si-based materials have enough internal voids to accommodate volume expansion due to the existence of their large pores, so that their structures can maintain their integrity during the processes of lithiation/delithiation, avoiding pulverization of silicon-based materials.…”

Section: Introductionmentioning

confidence: 99%

Advances of Synthesis Methods for Porous Silicon-Based Anode Materials

Zhang

Zhu

et al. 2022

Front. Chem.

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Silicon (Si)-based anode materials have been the promising candidates to replace commercial graphite, however, there are challenges in the practical applications of Si-based anode materials, including large volume expansion during Li+ insertion/deinsertion and low intrinsic conductivity. To address these problems existed for applications, nanostructured silicon materials, especially Si-based materials with three-dimensional (3D) porous structures have received extensive attention due to their unique advantages in accommodating volume expansion, transportation of lithium-ions, and convenient processing. In this review, we mainly summarize different synthesis methods of porous Si-based materials, including template-etching methods and self-assembly methods. Analysis of the strengths and shortages of the different methods is also provided. The morphology evolution and electrochemical effects of the porous structures on Si-based anodes of different methods are highlighted.

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Recent advances and perspectives of 2D silicon: Synthesis and application for energy storage and conversion

Cited by 89 publications

References 244 publications

Dimensionality, Function and Performance of Carbon Materials in Energy Storage Devices

Dimensionality, Function and Performance of Carbon Materials in Energy Storage Devices

Ultrathin Si Nanosheets Dispersed in Graphene Matrix Enable Stable Interface and High Rate Capability of Anode for Lithium‐ion Batteries

Advances of Synthesis Methods for Porous Silicon-Based Anode Materials

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