Industrial waste micron-sized silicon use for Si@C microspheres anodes in low-cost lithium-ion batteries

Zhang, Wenyuan; Wang, Donghua; Shi, Haofeng; Jiang, He; Wang, Chengdeng; Niu, Xingxin; Lu, Yu; Zhang, Xiao; Ji, Zhen; Cheng, Xiaoqin

doi:10.1016/j.susmat.2022.e00454

Cited by 9 publications

(13 citation statements)

References 41 publications

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“…The nanostructure and voids of the carbon-coated SiNPs enhanced the electrochemical performance, providing a high specific capacity of 948 mA h g −1 at 0.5 C and after 500 cycles when used as an anode. 165 The waste photovoltaic material with silicon is also an ideal material for silicon anode preparation. 163 Xian et al used an improved silver-assisted chemical etching process to treat the raw photovoltaic silicon cutting waste to prepare a porous Si@SiO x nanosilver composite with nano/micropores and a natural SiO x layered structure (Fig.…”

Section: Lithium-ion Batteries (Libs)mentioning

confidence: 99%

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Waste to wealth: direct utilization of spent materials for electrocatalysis and energy storage

Yan

Jiang

et al. 2023

Green Chem.

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Section: Lithium-ion Batteries (Libs)mentioning

confidence: 99%

Section: Waste To Wealth In Energy Storagementioning

confidence: 99%

Waste to wealth: direct utilization of spent materials for electrocatalysis and energy storage

Yan

Jiang

et al. 2023

Green Chem.

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“…15,17 The above issues bring about the crack and disintegration of the electrode and the formation of an unstable solid electrolyte interface (SEI), resulting in rapid attenuation of specific capacity. 18,19 In the last few years, many scientific researchers were committed to solving the inherent bottleneck of silicon anodes to successfully apply silicon waste to high-performance lithiumion batteries. The relevant studies have shown that grinding silicon waste to the nanoscale can availably enhance the cycle stability of electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…Silicon is deemed to be the most prospective anode material for lithium-ion batteries and has attracted widespread attention. Nevertheless, the practical application of silicon anodes is greatly hindered by the huge volume expansion during insertion/extraction of lithium ions (300%) and the poor intrinsic electronic conductivity (4 × 10 –4 S cm –1 ). , The above issues bring about the crack and disintegration of the electrode and the formation of an unstable solid electrolyte interface (SEI), resulting in rapid attenuation of specific capacity. , …”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Porous Si@SiOx/Ag/CN Anode Derived from Deposition Silicon Waste toward High-Performance Li-Ion Batteries

Li,

Chen,

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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The application of photovoltaic (PV) solid waste to the field of lithium-ion batteries is deemed to be an effective solution for waste disposal, which can not only solve the problem of environmental pollution but also avoid the loss of secondary resources. Herein, based on the volatile deposited waste produced by electron beam refining polysilicon, a simple and environmentally friendly method was designed to synthesize P-Si@SiOx/Ag/CN as an anode material for lithium-ion batteries. Remarkably, the presence of silver and the formation of a carbon−nitrogen network can enhance the electrical conductivity of the composite and boost the transport efficiency of lithium ions. Furthermore, the porous Si@SiOx structure is generated by silverassisted chemical etching (Ag-ACE), and the carbon−nitrogen grid architecture is formed after lyophilization with NaCl as a template, which can jointly provide sufficient buffer space for the volume change of silicon during lithiation/delithiation. Benefitting from these advantages, the P-Si@SiOx/Ag/CN anode exhibits outstanding cycling performance with 759 mA h g −1 over 300 cycles at 0.5 A g −1 . Meanwhile, the lithium-ion batteries employing the P-Si@SiOx/Ag/CN anodes present a superior rate capability of 950 mA h g −1 at 2 A g −1 and retain a high reversible specific capacity of 956 mA h g −1 at 1 A g −1 after 50 cycles. This work opens up a new economic strategy for the fabrication of high-performance silicon anodes and affords a promising avenue for the recycling of PV silicon waste.

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“…Silicon is considered as an attractive candidate anode material for the next generation of LIBs due to its high theoretical specific capacity of up to 4200 mAh g –1 (Li 22 Si 5 ) . In addition, silicon has the advantages of rich reserves, low operating voltage (<0.4 V vs Li/Li + ), and environmental-friendly characteristics. , The lithium storage mechanism of silicon is alloying, which makes silicon with high capacity but also brings about serious volume expansion . In the subsequent cycles, severe volume variation will lead to particle fragmentation, loss of electrical contact between the active material and the collector, and unstable solid electrolyte interphase (SEI) film .…”

Section: Introductionmentioning

confidence: 99%

Design and Construction of Porous Silicon Materials as Stable Anodes for Lithium-Ion Batteries

Duan

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Silicon is considered to be the most promising anode material for the next generation of lithium-ion batteries (LIBs), but its application is limited by the severe capacity decline due to volume expansion of up to 300%. Considering the inward accumulation of the stress produced during the actual lithiation process and the stabilizing effect of oxygen element, structural design and surface oxygen content regulation work together to improve the cyclic stability of silicon. Herein, we report the design and construction of novel porous silicon materials with regulated pore structure and surface oxygen content. The facile strategy for the synthesis of the materials is using Mg 2 Si and tetraethyl orthosilicate (TEOS) as Si resource, and the oxygen in the feedstock is ingeniously used at the same time. A series of Si anode materials with different pore structure and surface oxygen content were obtained by adjusting the proportion of Mg 2 Si and TEOS. Using 0.5 g of Mg 2 Si and 1 g of TEOS to prepare the material, the electrode reaches the optimum electrochemical performance with a discharge capacity of 935.9 mAh g −1 after 100 cycles and 587.2 mAh g −1 after 300 cycles at 0.5 and 1 A g −1 , respectively. This work provides a new strategy for the design and preparation to boost stable lithium ion storage of silicon anode materials.

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Industrial waste micron-sized silicon use for Si@C microspheres anodes in low-cost lithium-ion batteries

Cited by 9 publications

References 41 publications

Waste to wealth: direct utilization of spent materials for electrocatalysis and energy storage

Waste to wealth: direct utilization of spent materials for electrocatalysis and energy storage

Three-Dimensional Porous Si@SiOx/Ag/CN Anode Derived from Deposition Silicon Waste toward High-Performance Li-Ion Batteries

Design and Construction of Porous Silicon Materials as Stable Anodes for Lithium-Ion Batteries

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