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Recent advances of silicon-based solid-state lithium-ion batteries
Solid-state batteries (SSBs) have been widely considered as the most promising technology for next-generation energy storage systems. Among the anode candidates for SSBs, silicon (Si)-based materials have received extensive attention due to their advantages of ...
Low-Temperature Synthesis of Amorphous Silicon and Its Ball-in-Ball Hollow Nanospheres as High-Performance Anodes for Sodium-Ion Batteries
Amorphous silicon-based composite with yolk-shell structure has been successfully fabricated through low-temperature sodiothermic reduction, atomic layer deposition, in situ chemical polymerization, ...
Silicon/Graphite/Amorphous Carbon Composites as Anode …
5 · A series of samples (mSi1/FG9/C, mSi3/FG7/C, mSi5/FG5/C, mSi7/CG3/C, and mSi9/CG1/C) were prepared to study the effect of the ratio of micro-sized silicon to flake …
Lifetime Optimization of Amorphous Silicon Thin-Film Anodes for …
Silicon has emerged as a highly promising anode material for lithium-ion batteries (LIBs) owing to its high specific capacity and low voltage. However, previous …
Production of high-energy Li-ion batteries comprising silicon …
Rechargeable Li-based battery technologies utilising silicon, silicon-based, and Si-derivative anodes coupled with high-capacity/high-voltage insertion-type …
[PDF] Porous amorphous silicon film anodes for high-capacity and stable all-solid-state lithium batteries …
Owing to its high theoretical capacity of ~4200 mAh g−1 and low electrode potential (<0.35 V vs. Li+/Li), utilising silicon as anode material can boost the energy density of rechargeable lithium batteries. Nevertheless, the volume change (~300%) in silicon during lithiation/delithiation makes stable cycling challenging. Since some of the …
Amorphous silicon nitride induced high dielectric constant toward long-life solid lithium metal battery …
Amorphous silicon nitride with high dielectric constant enhances the uniform lithium electrodeposition by screening electric potential at high current density. The reduction product from the in-situ reaction between lithium anode and silicon nitride is beneficial to interfacial chemistry, especially the in-situ formed LiSi 2 N 3 shows a better …
Amorphous nanosized silicon with hierarchically porous structure …
The ever‐increasing demands for batteries with high energy densities to power the portable electronics with increased power consumption and to advance vehicle …
Amorphous silicon dioxide-based composites for high-performance Li-ion battery …
To design high performance SiO 2-based anodes for Li-ion batteries (LIBs), an amorphous SiO 2-FeSi-graphite (a-SiO 2 /FeSi/G) composite was synthesized by a simple solid state synthetic method using SiO, Fe, and graphite powders. The a-SiO 2 /FeSi/G composite was comprised of well dispersed amorphous SiO 2 and tiny (5–10 nm …
Amorphous nanosized silicon with hierarchically porous structure for high-performance lithium ion batteries …
With the increasing demand for high-performance batteries, lithium-sulfur battery has become a candidate for a new generation of high-performance batteries because of its high theoretical capacity ...
Amorphous silicon dioxide-based composites for high …
The a -SiO 2 /FeSi/G composite electrode showed excellent electrochemical performance featuring high initial charge capacity of 729 mAh g −1, with …
Amorphous vs Monocrystalline Solar Panels
Solar energy has emerged as a crucial renewable energy source in our quest for a sustainable future. Solar panels, the workhorses of this technology, harness the power of sunlight and convert it into electricity, making them an essential component of solar energy systems. When it comes to solar panels, two types of silicon dominate the...
Amorphous silicon anode for lithium-ion rechargeable batteries
Amorphous silicon is investigated as a negative electrode (anode) material for lithium-ion batteries. A thin (500 Å) film of amorphous silicon is cycled versus a lithium electrode.A maximum discharge capacity of 4 Ah g −1 is observed by cycling over a voltage window of 0–3 V, but capacity fading is rapid after 20 cycles.
Structural, optical and electrical properties of amorphous silicon …
Amorphous silicon (a-Si) films were prepared by sputtering method with polycrystalline and monocrystalline silicon targets. Structural, optical and electrical properties of the a-Si films have been systematically studied. The deposition power is from 100 to 200 W. Compared with the a-Si films deposited by using monocrystalline silicon …
Highly featured amorphous silicon nanorod arrays for high-performance lithium-ion batteries …
High aspect-ratio vertical structures of amorphous silicon have been realized using hydrogen-assisted low-density plasma reactive ion etching. Amorphous silicon layers with the ...
9.12: Amorphous Semiconductors
Amorphous hydrogenated Si is used in inexpensive thin film solar cells. The mobility gap is about 1.7 eV, which is larger than the bandgap crystalline of Si (1.1 eV). a-Si:H is a direct-gap material, and therefore thin films are good light absorbers. a-Si:H solar cells ...
A strategy to attain amorphous silicon solar cells with over 25% efficiency
Two promising types of solar cells are silicon heterojunction (SHJ) solar cells and perovskite/SHJ tandem solar cells. Both of these classes of solar cells are fabricated using hydrogenated amorphous silicon (a-Si:H), the non-crystalline form of silicon, which is also commonly used to build thin-film transistors, batteries and LCD …
Amorphous vs Crystalline Solar Panels: What''s the Difference?
Due to the higher efficiency of crystalline silicon solar cells, amorphous silicon cells are less favored for large installations and thus considered a more specialty product. That said, they are also the least expensive to produce, coming in …
Amorphous nanosized silicon with hierarchically porous structure for high-performance lithium ion batteries …
The development of silicon-based anode materials is important for improving the energy density of current lithium ion batteries. However, there are still strong demands for these ...
Tension–compression asymmetry in amorphous silicon
Tension–compression asymmetry in amorphous silicon
Amorphous Silicon Microbolometer Technology
Highly sensitive hydrogenated amorphous silicon (a-Si:H) microbolometer arrays have been developed that take advantage of the high temperature coefficient of resistance (TCR) of aSi:H and its relatively high optical absorption coefficient. TCR is an important design parameter and depends on material properties such as doping …
High-Strength Amorphous Silicon Carbide for Nanomechanics
In this study, a wafer-scale amorphous thin film is uncovered, which has the highest ultimate tensile strength ever measured for a nanostructured amorphous material. This silicon carbide (SiC) material exhibits an …
Stable high-capacity and high-rate silicon-based lithium battery anodes upon two-dimensional covalent encapsulation …
Stable high-capacity and high-rate silicon-based lithium ...
Amorphous silicon anode for lithium-ion rechargeable batteries
Amorphous silicon is investigated as a negative electrode (anode) material for lithium-ion batteries. A thin (500 Å) film of amorphous silicon is cycled versus a lithium electrode. A maximum discharge capacity of 4 Ah g −1 is observed by cycling over a voltage window of 0–3 V, but capacity fading is rapid after 20 cycles. . This capacity …
Amorphous Materials for Lithium-Ion and Post-Lithium-Ion …
This review highlights the recent advances in using amorphous materials (AMs) for fabricating lithium-ion and post-lithium-ion batteries, focusing on the correlation between …
Amorphous shear band formation in crystalline Si-anodes …
Herein, we investigate the degradation behaviour of silicon-based anodes in Li-ion batteries in full-cell configuration up to prolonged electrochemical cycling, …
Research Progress on the Structural Design and Optimization of …
Silicon anodes have been considered one of the most promising anode candidates for the next generation of high-energy density lithium-ion batteries due to the …
Monolithic Layered Silicon Composed of a …
While nanostructural engineering holds promise for improving the stability of high-capacity silicon (Si) anodes in lithium-ion batteries (LIBs), challenges like complex …
Redox process and lithiation mechanism of amorphous vanadium-silicon materials as lithium-ion battery …
V 2 O 5-TeO 2 (VT) is a vanadium-based amorphous lithium-ion battery (LIB) anode material that exhibits a high specific energy, but its low-capacity retention rate and low conductivity limit its widespread application. Different amounts of …
Research Progress on the Structural Design and Optimization of Silicon Anodes for Lithium-Ion Batteries…
Silicon anodes have been considered one of the most promising anode candidates for the next generation of high-energy density lithium-ion batteries due to the high theoretical specific capacity (4200 mAh g−1) of Si. However, high lithiation capacity endows silicon anodes with severe volume expansion effects during the …
Design rules for high-efficiency both-sides-contacted silicon solar cells with balanced charge carrier transport and recombination losses | Nature ...
The photovoltaic industry is dominated by crystalline silicon solar cells. Although interdigitated back-contact cells have yielded the highest efficiency, both-sides-contacted cells are the ...
Nanostructured silicon for high capacity lithium battery …
1. Introduction Lithium ion secondary batteries are attractive energy storage devices with high gravimetric and volumetric capacity and the ability to deliver high rates of power. 1–9 They have become ubiquitous power …
Encapsulation and networking of silicon nanoparticles using amorphous carbon and graphite for high performance Li-ion batteries …
The amorphous carbon used for GSiWh composite is obtained from wheat flour using a pyrolytic heat treatment. In the presence of an inert environment, wheat flour decomposes based on the following general reaction: (C 6 H 10 O 5) n → C (s) + H 2 O (g) + other gaseous products to form physical cages for Si-NPs and also, acts as a bridge …