Pitch-based carbon/nano-silicon composite, an efficient anode for …

Graphene is an innovative, two-dimensional carbon nano-material with excellent electron and ion transport characteristics, high thermal stability, high …

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A Thorough Analysis of Two Different Pre‐Lithiation …

Silicon (Si) is one of the most promising candidates for application as high-capacity negative electrode (anode) material in lithium ion batteries (LIBs) due to its high specific capacity. However, evoked by huge volume changes upon (de)lithiation, several issues lead to a rather poor electrochemical perform-ance of Si-based LIB cells.

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The design and regulation of porous silicon-carbon composites …

Lithium-ion batteries (LIBs) ... In summary, this article proposes a simple and safe method to synthesize high-performance porous silicon carbon negative electrode materials. The porous structure of the material provides space for the volume expansion of silicon, slows down the huge stress caused by the volume expansion of …

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Nanostructured anode materials for high-performance lithium-ion …

6 · 3.1 sertion-type anode materials. Among many candidates, carbon-based materials are one of the most potential anode materials for lithium-ion storage, which are very stable, abundant and inexpensive [40].Currently, graphite is generally applied as the …

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Design of ultrafine silicon structure for lithium battery and …

As the main body of lithium storage, negative electrode materials have become the key to improving the performance of lithium batteries. ... This article introduces the current design ideas of ultra-fine silicon structure for lithium batteries and the method of compounding with carbon materials, and reviews the research progress of the ...

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Nano silicon for lithium-ion batteries

New results for two types of nano-size silicon, prepared via thermal vapour deposition either with or without a graphite substrate are presented. Their superior reversible charge capacity and cycle life as negative electrode material for lithium-ion batteries have already been shown in previous work.

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Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative Electrodes …

1 Introduction. Lithium-ion batteries (LIBs) revolutionized our lives since they first entered the market in 1991 by Sony. [] Due to their low self-discharge rate, low maintenance, free of memory effort, high energy density and long cycle lifespan, they play an important role in various applications including in consumer electronics (laptops, …

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Nanostructured Si−C Composites As High‐Capacity Anode Material …

Silicon carbon composites have only been rarely analyzed in combination with SEs yet but e. g. nanostructured Si/C fibers in ASSBs deliver a reversible capacity of about 700 mAh g −1 over 70 cycles with CEs up to 99.2 % in half-cells. 43 The nanostructured Si−C composites used in this study offering a void between the silicon …

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Nano-sized transition-metal oxides as negative-electrode materials …

Swagelok-type cells 10 were assembled and cycled using a Mac-Pile automatic cycling/data recording system (Biologic Co, Claix, France) between 3 and 0.01 V. These cells comprise (1) a 1-cm 2, 75 ...

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Synthesis of micro-nano sphere structure silicon–carbon …

Synthesis of micro-nano sphere structure silicon–carbon composite as anode material for lithium-ion batteries. ... there is an urgent need to develop anode materials with higher specific capacities for high energy density lithium-ion batteries. Silicon ... the volume changes of Si-based negative electrode materials can reach …

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Batteries | Free Full-Text | Silicon/Carbon Nanoparticles …

Silicon as an electrode material in the lithium-ion battery application scenario has been hindered by its significant volumetric expansion and intricate synthesis processes. In this research, we have successfully synthesized Si@C/carbon nanotubes/carbon sheets (Si@C-CNTs/CS) composites by employing a simple one-pot …

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Electrode materials for lithium-ion batteries

3. Recent trends and prospects of cathode materials for Li-ion batteries. The cathodes used along with anode are an oxide or phosphate-based materials routinely used in LIBs [38].Recently, sulfur and potassium were doped in lithium-manganese spinal which resulted in enhanced Li-ion mobility [52].The Li-ion diffusivity was also enhanced, …

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Research progress on nano silicon-carbon anode materials for lithium ...

Since 1999, when the Institute of Physics of the Chinese Academy of Sciences first reported the important role of nanotechnology in improving the performance of silicon negative electrode, it has continued to explore many basic scientific issues and industrial applications of nano silicon-based materials by mainly focusing on the ...

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Research progress of nano-silicon-based materials and silicon …

The overall expansion rate of silicon particles is related to the pore diameter and framework size. The existence of pores makes the volume change rate of …

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Sandwich network structure silicon/carbon anode material for lithium ...

Lithium-ion batteries have been widely used in electrical devices and new energy vehicles [], due to their high energy density, safety and environmental friendliness [2, 3].However, the low theoretical capacity (~ 372 mAh·g −1) of commercial graphite anode materials cannot meet the demand of future new energy development …

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A new type of nano-sized silicon/carbon composite electrode for ...

A new type of nano-sized silicon/carbon composite was developed. It shows superior electrochemical cycling properties as negative electrode material for possible use in lithium-ion batteries with respect to high reversible and low …

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Si-decorated CNT network as negative electrode for lithium-ion …

We have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube …

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Electrochemical Synthesis of Multidimensional …

Silicon (Si) is a promising negative electrode material for lithium-ion batteries (LIBs), but the poor cycling stability hinders their practical application. Developing favorable Si nanomaterials is expected …

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A Step toward High-Energy Silicon-Based Thin Film Lithium Ion Batteries …

The next generation of lithium ion batteries (LIBs) with increased energy density for large-scale applications, such as electric mobility, and also for small electronic devices, such as microbatteries and on-chip batteries, requires advanced electrode active materials with enhanced specific and volumetric capacities. In this regard, silicon as anode material …

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Nano-silicon @ soft carbon embedded in graphene scaffold: …

The nano-silicon @ soft carbon embedded in graphene scaffold composite electrode was prepared to enhance the lithium storage capacity. For the ''single'' SNPs, soft carbon (d 002 -spacing of 0.37 nm at crystalline region) with combined mechanical performance, conductivity and fast lithium-ion diffusion channel is …

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Enhanced Performance of Silicon Negative Electrodes …

Silicon is considered as one of the most promising candidates for the next generation negative electrode (negatrode) materials in lithium-ion batteries (LIBs) due to its high theoretical specific capacity, appropriate lithiation potential range, and fairly abundant resources. However, the practical application of silicon negatrodes is …

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Phosphorus-doped silicon nanoparticles as high performance LIB negative …

Silicon is getting much attention as the promising next-generation negative electrode materials for lithium-ion batteries with the advantages of abundance, high theoretical specific capacity and environmentally friendliness. In this work, a series of phosphorus (P)-doped silicon negative electrode materials (P-Si-34, P-Si-60 and P-Si …

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A high-performance silicon/carbon composite as …

To overcome the existing rapid capacity decay, low conductivity and the expands and contracts in volume of Si/C composite anodes in lithium ion batteries, we have developed a silicon/carbon …

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Negative electrode materials for high-energy density Li

Effect of phosphorus-doping on electrochemical performance of silicon negative electrodes in lithium-ion batteries ACS Appl Mater Interfaces, 8 ( 2016 ), pp. 7125 - 7132, 10.1021/acsami.6b00386 View in Scopus Google Scholar

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Application of Nanomaterials in the Negative Electrode of Lithium …

Moreover, due to the large volume variation, low conductivity, and electrode polarization of silicon materials, their cycling performance in lithium-ion batteries is poor, often resulting in ...

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High performance silicon electrode enabled by titanicone coating …

Silicon is a promising material as a negative electrode for LIBs. ... composite materials with carbon to account for the volumetric ... performance of nano-silicon-based lithium battery.

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Electrochemical Preparation of Nano-Sized Silicon as a …

silicon. Silicon is a potential lithium-ion battery electrode material owing to its very high theoretical specific capacity of 4200mA·h g−1, but its expansion during lithiation limits its use. Therefore, we prepared a composite of silicon and carbon, which is known to reduce these volumetric changes,28,29 and we report the electrochemical ...

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Mechanochemical synthesis of Si/Cu3Si-based …

Thus, coin cell made of C-coated Si/Cu3Si-based composite as negative electrode (active materials loading, 2.3 mg cm−2) conducted at 100 mA g−1 performs the initial charge capacity of 1812 …

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Nano silicon for lithium-ion batteries | Semantic Scholar

Semantic Scholar extracted view of "Nano silicon for lithium-ion batteries" by M. Holzapfel et al. ... Silicon is essential as an active material in lithium-ion batteries because it provides both high-charge and optimal cycle characteristics. ... Our study focuses on the performance of the carbon negative electrode, which is …

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Silicon/Carbon Composite Anode Materials for Lithium-Ion Batteries …

Abstract Silicon (Si) is a representative anode material for next-generation lithium-ion batteries due to properties such as a high theoretical capacity, suitable working voltage, and high natural abundance. However, due to inherently large volume expansions (~ 400%) during insertion/deinsertion processes as well as poor …

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The preparation of graphite/silicon@carbon composites for lithium …

Since the commercialization of lithium-ion secondary batteries (LIBs) carried out by Sony in 1991 [], LIBs have played increasingly important roles in the portable electronic device and electric vehicles.The present commercial negative electrode materials, like modified natural graphite or artificial graphite, cannot satisfy the ever …

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Design of ultrafine silicon structure for lithium battery and …

This article introduces the current design ideas of ultra-fine silicon structure for lithium batteries and the method of compounding with carbon materials, …

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Optimization of graphene dose for improved electrochemical

Different percentages of nanoparticles graphene (G) were mixed with nano-micron sized silicon (Si) particles as follows: 10, 20, 30 and 40 wt% graphene to silicon ratios. The crystal structure of pure Si powder pattern has cubic phase SEM, TEM/SAED and XPS equipments were implemented to study the surface properties of …

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Spray Drying Method for Large-Scale and High-Performance Silicon ...

Nanostructured silicon electrodes have shown great potential as lithium ion battery anodes because they can address capacity fading mechanisms originating from large volume changes of silicon alloys while delivering extraordinarily large gravimetric capacities. Nonetheless, synthesis of well-defined silicon nanostructures in an …

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Fabrication of high-performance silicon anode materials for lithium …

Due to its high theoretical specific capacity and lower working potential, silicon is regarded as the most promising anode material for the new generation of lithium-ion batteries. As a semiconductor material, silicon undergoes large volume changes on lithium insertion during cycling, causing electrode pulverization and thickening of the …

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In-Situ Synthesized Si@C Materials for the Lithium Ion Battery …

As an important component, the anode determines the property and development of lithium ion batteries. The synthetic method and the structure design of the negative electrode materials play decisive roles in improving the property of the thus-assembled batteries. Si@C compound materials have been widely used based on their …

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