In Situ Generated Carbon Nanosheet-Covered Micron-Sized Porous Si Composite for Long-Cycling Life Lithium-Ion Batteries

Luo, Wen; Fang, Chenhui; Zhang, Xiaofeng; Liu, Jiaxing; Ma, Hong; Zhang, Guoqing; Liu, Zhongyun; Li, Xinxi

doi:10.1021/acsaem.0c02445

Cited by 27 publications

(27 citation statements)

References 71 publications

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“…It is well known that one way we can increase the capacitance of a capacitor is by increasing its active surface. For this reason, we have opted to use porous silicon electrodes in the fabrication of the supercapacitors. − Not only does the process improve the device’s performance, it is also a fast and cost-effective method, which is always desirable when talking about device manufacturing. As far as we know, there currently is not a study on the influence the degree of porosity has on Si electrodes’ charge storage performance.…”

Section: Introductionmentioning

confidence: 99%

In-Depth Analysis of Porous Si Electrodes for Supercapacitors

et al. 2021

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Supercapacitors have presented promising results in energy storage until now, making them a possible candidate for becoming a mainstream rechargeable power source, which could be easily integrated in portable devices. Si itself, due to its prominence, would be a suitable candidate as a material for electrodes. Despite their performances, they still present shortcomings when put against batteries; hence, a lot of focus is put on increasing the performance of supercapacitors. Starting with its capacitance, we have opted for an increase in the active surface obtained through the porosification of the aforementioned Si electrodes to obtain a higher capacitance and better performances, as well as coating the presented electrodes for a pseudocapacitive contribution in addition. This article presents a study done on the effects the porosification of Si electrodes has on their electrical performance.

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Section: Introductionmentioning

confidence: 99%

In-Depth Analysis of Porous Si Electrodes for Supercapacitors

et al. 2021

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“…Recently, selective dealloying is considered as a promising method for manufacturing micro-porous silicon. ( Luo et al, 2020 ; Zhou et al, 2020 ) This method employs cheap silicon-metal alloys (such as Si-Al alloys etc.) as raw materials, and porous silicon materials are obtained by removing metal elements in the alloys.…”

Section: Synthesis Of Porous Silicon-based Materialsmentioning

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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“…[91,92] The reaction mechanism of the battery system needs to be further understood from the atomic/molecular point of view to analyze the above problems and help the selection of the battery system. [93,94] The electrode is the main component of the battery, and the current commercial electrode materials include lithium iron phosphate, lithium titanate, lithium nickel cobalt manganate, etc. [95][96][97] The state of electrons in the charge and discharge process of electric materials affects the physicochemical properties of the whole material and has attracted a lot of research.…”

Section: Spin-dependent Effects In Lithium/sodium-ion Batteries (Libs...mentioning

confidence: 99%

Research Progress of Spin-Dependent Effects in Catalysis and Energy Storage

Zhang¹

2022

MatLab

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Hydrogen fuel is highly valued as ideal clean energy to solve the environmental crisis. Electrolytic water splitting, as the most promising hydrogen production method, has been widely and deeply studied in recent ten years. On the other hand, lithium-ion batteries are considered the most popular energy storage equipment because of their high energy density, high working voltage, and long cycle life. However, the rapid development of society needs cheaper fuel, higher power density, and safer energy storage devices. Therefore, many new and efficient catalysts and electrode materials are being developed and explored. However, their electrochemical reaction mechanism must be clarified before they could be widely used in industry. In recent years, spin-dependent effects have been deeply studied in the field of catalysis and energy storage, which provides a theoretical foundation for analyzing the electrochemical reaction mechanism, preparing and screening promising catalytic and energy storage materials. This work summarizes the influence of spin-dependent effects on the physical and chemical properties of materials, mainly from four aspects, including electrocatalytic water splitting, metal-air batteries, lithium/sodium-sulfur batteries and lithium/sodium-ion batteries. Finally, we put forward some suggestions on the challenges and development of spin-dependent effects in catalysis and energy storage.

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In Situ Generated Carbon Nanosheet-Covered Micron-Sized Porous Si Composite for Long-Cycling Life Lithium-Ion Batteries

Cited by 27 publications

References 71 publications

In-Depth Analysis of Porous Si Electrodes for Supercapacitors

In-Depth Analysis of Porous Si Electrodes for Supercapacitors

Advances of Synthesis Methods for Porous Silicon-Based Anode Materials

Research Progress of Spin-Dependent Effects in Catalysis and Energy Storage

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