Synchronous modification to realize micron-SiOx anode with durable and superior electrochemical performance for lithium-ion batteries

Jing, Jiayi; Li, Qian; Li, Chengzhe; Yang, Zhikai; Yu, Gengchen; Bai, Xue; Li, Tao

doi:10.1016/j.apsusc.2023.157293

Cited by 7 publications

(4 citation statements)

References 65 publications

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“…Given the growing concerns about environmental pollution and energy shortages, renewable and clean energy, for instance, solar, wind, and tidal energy, has been regarded as the most prominent alternative candidate to solve future survival issues. Nowadays, the intermittent period problem still hinders the full utilization of these new energy sources, which cause extreme pressure on electrical energy storage systems (EES) [1][2][3]. Moreover, the current transportation systems, which are usually powered by fossil issues, would be more promising if they were replaced by electrically driven devices.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Anode Materials for Sodium-Ion Batteries

Bai

et al. 2023

Inorganics

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Although lithium-ion battery (LIB) technology has prevailed for years, the growing pressure and increased cost of lithium sources urge the rapid development of other promising energy storage devices. As a low-cost alternative, sodium-ion batteries (SIBs) with similar properties of electrochemical reaction have caught researchers’ attention. Nevertheless, great challenges of inferior reversible capacity and poor lifespan induced by the bigger ionic radius of sodium ions still exist. To solve these problems, improvements to anode materials prove to be an effective way. Herein, the latest research on promising anodes in SIBs is summarized, and the further prospects are also illustrated.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Anode Materials for Sodium-Ion Batteries

Bai

et al. 2023

Inorganics

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“…Melamine is the nitrogen resource generally used. Jing et al reported that excellent lithium-ion diffusion could be achieved due to the generation of Li 3 N solid electrolytes stemming from melamine involvement [8]. Xie et al reported that a well-designed structure favors N-SiOx/C@C, ensuring a conductive path and structural integrity during the cycle [9].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Doped Carbon Matrix to Optimize Cycling Stability of Lithium Ion Battery Anode from SiOx Materials

Bie,

Dong,

Xiong

et al. 2023

Inorganics

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This study prepared silicon oxide anode materials with nitrogen-doped carbon matrices (SiOx/C–N) through silicon-containing polyester thermal carbonization. Melamine was introduced as a nitrogen source during the experiment. This nitrogen doping process resulted in a porous structure in the carbon matrices, a fact confirmed by scanning electron microscopy (SEM). Pyridinic and quaternary nitrogen, but mainly tertiary nitrogen, were generated, as shown via X-ray photoelectron spectroscopy (XPS). Electrochemical tests confirmed that, as anode materials for a lithium-ion battery, SiOx/C–N provided better cycle stability, improved rate capability, and lower Li+ diffusion resistance. The best performance showed an activated capacity at 493.5 mAh/g, preserved at 432.8 mAh/g after the 100th cycle, with 87.7% total Columbic efficiency. Those without nitrogen doping gave 1126.7 mAh/g, 249.0 mAh/g, and 22.1%, respectively. The most noteworthy point was that, after 100 cycles, anodes without nitrogen doping were pulverized into fine powders (SEM); meanwhile, in the case of anodes with nitrogen doping, powders of a larger size (0.5–1.0 µm) formed, with the accumulation of surrounding cavities. We suggest that the formation of more prominent powders may have resulted from the more substantial nitrogen-doped carbon matrices, which prevented the anode from further breaking down to a smaller size. The volume expansion stress decreased when the powders decreased to nanosize, which is why the nanosized silicon anode materials showed better cycling stability. When the anodes were cracked into powders with a determined diameter, the stress from volume expansion decreased to a level at which the powders could preserve their shape, and the breakage of the powders was stopped. Hence, the diameters of the final reserved powders are contingent on the strength of the matrix. As reported, nitrogen-doped carbon matrices are more robust than those not doped with nitrogen. Thus, in our research, anodes with nitrogen-doped carbon matrices presented more large-diameter powders, as SEM confirmed. Anodes with nitrogen doping will not be further broken at a larger diameter. At this point, the SEI film will not show continuous breakage and formation compared to the anode without doping. This was validated by the lower deposition content of the SEI-film-related elements (phosphorous and fluorine) in the cycled anodes with nitrogen doping. The anode without nitrogen doping presented higher content, meaning that the SEI films were broken many times during lithiation/delithiation (EDS mapping).

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“…Furthermore, these beneficial characteristics contribute to enhanced strength and resistance to pulverization, enabling the electrode to withstand greater stress and deformation without crushing, which leads to a higher initial specific capacity, reversible capacity, and improved cycle stability . Besides, the larger specific surface area of low-dimensional silicon materials results in higher surface atomic average binding energy . This elevated binding energy facilitates the material’s ability to withstand a higher current density per unit area, further enhancing the rate performance compared to amorphous silicon materials.…”

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confidence: 99%

“…However, silicon oxides exhibit certain inherent drawbacks. First, during the initial lithiation cycle, the formation of Li 2 O as well as lithium silicates diminishes the initial Coulombic efficiency (ICE) and compromises the chemical kinetic properties of the anode materials . As a result, while SiO x materials demonstrate improved cycling stability compared to amorphous silicon, their overall stability remains unsatisfactory .…”

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confidence: 99%

Si-based Anode Lithium-Ion Batteries: A Comprehensive Review of Recent Progress

Li,

Chai

et al. 2023

ACS Materials Lett.

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Si-based anode materials offer significant advantages, such as high specific capacity, low voltage platform, environmental friendliness, and abundant resources, making them highly promising candidates to replace graphite anodes in the next generation of high specific energy lithium-ion batteries (LIBs). However, the commercialization of Si-based anodes for LIBs encounters significant barriers due to inherent challenges. These challenges encompass a range of issues, including poor electrical conductivity, substantial volume expansion during the lithiation−delithiation process, severe pulverization of the electrodes, pronounced thickening of the solid electrolyte interphase film, low Coulombic efficiency, and limited cycling performance. Each of these factors leads to the complexity of realizing the full potential of Si-based anodes in commercial LIBs applications. This review provides a comprehensive summary and discussion of recent research on Si-based LIB anodes, focusing on the microscopic morphology of Si and the development of Si-based composite materials. By offering a novel perspective, this review aims to provide an overview and insightful discussion of Sibased anodes. The latest research findings are presented, and innovative viewpoints and reasonable insights are addressed, shedding light on the potential solutions to overcome the limitations associated with Si-based anodes.

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Synchronous modification to realize micron-SiOx anode with durable and superior electrochemical performance for lithium-ion batteries

Cited by 7 publications

References 65 publications

Recent Advances in Anode Materials for Sodium-Ion Batteries

Recent Advances in Anode Materials for Sodium-Ion Batteries

Nitrogen-Doped Carbon Matrix to Optimize Cycling Stability of Lithium Ion Battery Anode from SiOx Materials

Si-based Anode Lithium-Ion Batteries: A Comprehensive Review of Recent Progress

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