Conventional lithium ion batteries employ crystalline materials which have stable electrochemical potentials to allow lithium ion intercalation within the interstitial layers or …
The silicon-based materials were prepared and examined in lithium cells for high-capacity lithium-ion batteries. Among the materials examined, "SiO"-carbon composite showed remarkable improvements ...
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 to improve …
The research on high-performance negative electrode materials with higher capacity and better cycling stability has become one of the most active parts in lithium ion batteries (LIBs) [[1], [2], [3], [4]] pared to the current graphite with theoretical capacity of 372 mAh g −1, Si has been widely considered as the replacement for graphite owing to its low …
As one of the important components of lithium-ion batteries, the performance of the negative electrode has a significant impact on the overall indicators of the battery. Graphite materials with the theoretical specific capacity of 372 mAh g −1 is difficult to meet the demand of high-energy–density [9], [10], but silicon-based materials have high theoretical …
Although silicon is being researched as one of the most promising anode materials for future generation lithium-ion batteries owing to its greater theoretical capacity (3579 mAh g−1), its practical applicability is …
Silicon-carbon materials have broad development prospects as negative electrode materials for lithium-ion batteries. In this paper, polyvinyl butyral (PVB)-based carbon-coated silicon (Si/C) composite materials were prepared using PVB-coated Si particles and then high-temperature carbonization methods. Furthermore, the PVB-based carbon …
In addition, the lower discharge platform (0.1 V) helps to avoid the formation of lithium dendrites on the electrode surface. However, silicon negative electrode materials suffer from serious volume effect (∼300%) in the Li-ion charge-discharge process, leading to subsequent pulverization of silicon [3,11,13]. It may also cause the loss of ...
Silicon is considered one of the most promising anode materials for next-generation state-of-the-art high-energy lithium-ion batteries (LIBs) because of its ultrahigh theoretical capacity, relatively low working potential and abundant reserves. However, the inherently large volume changes of the lithiation/delithiation process, instability of the SEI layer …
npj Computational Materials - Chemomechanical modeling of lithiation-induced failure in high-volume-change electrode materials for lithium ion batteries Skip to main content Thank you for visiting ...
Since the lithium-ion batteries consisting of the LiCoO 2-positive and carbon-negative electrodes were proposed and fabricated as power sources for mobile phones and laptop computers, several efforts have been …
Silicon possesses a 10-fold specific capacity compared to commonly used carbon-based anodes. The volume instability, among other impediments for practical use of silicon anodes, leads to the rapid decay of the capacity because of poor cyclability. Urgent mechanisms are required to improve lithium-ion storage during cycling and prevent volume …
During discharge, if the electrodes are connected via an external circuit with an electronic conductor, electrons will flow from the negative electrode to the positive one; at the same time, lithium ions will move through the electrolyte and insert into the positive electrode. Silicon (Si) has been widely investigated as an anode material for ...
Silicon is considered as a promising negative electrode active material for Li-ion batteries, but its practical use is hampered by its very limited electrochemical cyclability arising from its major volume change upon cycling, which deteriorates the electrode architecture and the solid–electrolyte interphase. In this Perspective, we aim at critically discussing the …
Silicon nanoparticle self-incorporated in hollow nitrogen-doped carbon microspheres for lithium-ion battery anodes. Electrochim Acta, 368 (2021), p. 137630, 10.1016/j.electacta.2020.137630. View PDF View article View in Scopus Google Scholar. 30. S. Chae, S.H. Choi, N. Kim, J. Sung, J. Cho. Integration of graphite and silicon anodes for the …
In order to solve the energy crisis, energy storage technology needs to be continuously developed. As an energy storage device, the battery is more widely used. At present, most electric vehicles are driven by lithium-ion batteries, so higher requirements are put forward for the capacity and cycle life of lithium-ion batteries. Silicon with a capacity of 3579 …
Request PDF | On Jan 1, 2010, Fredrik Lindgren published Silicon as Negative Electrode Material for Lithium-ion Batteries | Find, read and cite all the research you need on ResearchGate
Si is an attractive negative electrode material for lithium ion batteries due to its high specific capacity (≈3600 mAh g –1).However, the huge volume swelling and shrinking during cycling, which mimics a breathing effect at the material/electrode/cell level, leads to several coupled issues including fracture of Si particles, unstable solid electrolyte interphase, …
Carbon-based materials have been extensively researched as electrode materials for fast-charging LIBs owing to their abundance, low cost, nontoxicity, and electrochemical diversity. This study reviews the recent research progress in the application of carbon-based materials as electrode materials for fast charging LIBs. First, the mechanism …
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 performance of Si-based LIB cells.
The increasing demand for high energy density batteries has spurred the development of the next generation of lithium-ion batteries. Silicon (Si) materials have great potential as anode materials in such batteries owing to their ultra-high theoretical specific capacities, natural abundance, and environmental friendliness. However, the large volume expansion and poor …
Intensive efforts aiming at the development of a sodium-ion battery (SIB) technology operating at room temperature and based on a concept analogy with the ubiquitous lithium-ion (LIB) have emerged in the last few …
A typical contemporary LIB cell consists of a cathode made from a lithium-intercalated layered oxide (e.g., LiCoO 2, LiMn 2 O 4, LiFePO 4, or LiNi x Mn y Co 1−x O 2) and mostly graphite anode with an organic electrolyte (e.g., LiPF 6, LiBF 4 or LiClO 4 in an organic solvent). Lithium ions move spontaneously through the electrolyte from the negative to the …
Lithium-ion batteries (LIBs) are generally constructed by lithium-including positive electrode materials, such as LiCoO2 and lithium-free negative electrode materials, such as graphite. Recently ...
The invention discloses a silicon-carbon negative electrode material for a lithium-ion battery and a preparation method of the silicon-carbon negative electrode material. The method comprises the steps of processing powdered carbon in a granulating manner to obtain carbon micropowder of which the bore diameters are 0.01-100 microns; …
Lithium-ion (Li-ion) batteries with high energy densities are desired to address the range anxiety of electric vehicles. A promising way to improve energy density is through adding silicon to the graphite negative electrode, as silicon has a large theoretical specific capacity of up to 4200 mAh g − 1 [1].However, there are a number of problems when …
Graphite currently serves as the main material for the negative electrode of lithium batteries. Due to technological advancements, there is an urgent need to develop …
Design of ultrafine silicon structure for lithium battery and research progress of silicon-carbon composite negative electrode materials . Baoguo Zhang 1, Ling Tong 2, Lin Wu 1,2,3, Xiaoyu Yang 1, Zhiyuan Liao 1, Ao Chen 1, Yilai Zhou 1, Ying Liu 1 and Ya Hu 1,3. Published under licence by IOP Publishing Ltd Journal of Physics: Conference Series, Volume …
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 hampered by the poor …
Graphite and related carbonaceous materials can reversibly intercalate metal atoms to store electrochemical energy in batteries. 29, 64, 99-101 Graphite, the main negative electrode material for LIBs, naturally is considered to be the …
The high capacity (3860 mA h g −1 or 2061 mA h cm −3) and lower potential of reduction of −3.04 V vs primary reference electrode (standard hydrogen electrode: SHE) make the anode metal Li as significant compared to other metals [39], [40].But the high reactivity of lithium creates several challenges in the fabrication of safe battery cells which can be …
Pitch-based carbon/nano-silicon composites are proposed as a high performance and realistic electrode material of Li-ion battery anodes. Composites are prepared in a simple way by the pyrolysis under argon …
In this work, we aim to use industrial scale silicon from Elkem in a composite material as a negative anode for the lithium-ion battery and achieve a considerable improvement in capacity...
However, the volume expansion of silicon anode material and instability of solid electrolyte interphase (SEI) layer greatly limits their practical applications. Herein, we demonstrate a novel sandwich network structure silicon-carbon anode composites and explored as electrode material for lithium-ion batteries (LIBs). The CBC/Si/NC composites ...
Multi-walled carbon Nanotubes (MWCNTs) are hailed as beneficial conductive agents in Silicon (Si)-based negative electrodes due to their unique features enlisting high …
We have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube (Si/CNTs) …
Nanoscale materials are gaining massive attention in recent years due to their potential to alleviate the present electrochemical electrode constraints. Possessing high conductivity (both thermally and electrically), high chemical and electrochemical stability, exceptional mechanical strength and flexibility, high specific surface area, large charge storage …
However, there seems to be general agreement that "SiO" is composed of nano-size silicon particles highly dispersed in amorphous SiO 2. 1,8,16–20 According to our experimental results, during the first reduction corresponding to first charge of the "SiO"-carbon composite-negative electrode in lithium-ion batteries, Si in "SiO" is reduced to lithium …
The binder, an ingredient of the electrode, is used to connect the active materials and conductive agent to the current collector. It is considered to play a critical role in maintaining the structural stability of electrodes [17].So far, beyond conventional polyvinylidene difluoride (PVDF), various functional binders such as sodium carboxymethyl cellulose …
Silicon (Si), the second-largest element outside of Earth, has an exceptionally high specific capacity (3579 mAh g −1), regarded as an excellent choice for the anode material in high …
Mechanochemical synthesis of Si/Cu 3 Si-based composite as negative electrode materials for lithium ion battery is investigated. Results indicate that CuO is decomposed and alloyed with...
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 electrical conductivity and …
The development of negative electrode materials with better performance than those currently used in Li-ion technology has been a major focus of recent battery …
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.
Keywords: silicon, negative electrode, magnesiothermic reduction, lithium-ion batteries, interface control. Citation: Tan Y, Jiang T and Chen GZ (2021) Mechanisms and Product Options of Magnesiothermic Reduction of Silica to Silicon for Lithium-Ion Battery Applications. Front. Energy Res. 9:651386. doi: 10.3389/fenrg.2021.651386
In this study, periodic 3D Silicon/carbon (3D Si@C) core–shell electrodes were fabricated using the thermal decomposition (material design) combined with the subsequent structuring of the electrode (electrode design) and then investigated as anode material for LIB. The rate capability of an electrode is dominantly determined by the electronic conductivity, …
We introduce a novel design of carbon−silicon core−shell nanowires for high power and long life lithium battery electrodes. Amorphous silicon was coated onto carbon nanofibers to form a core−shell structure and …
Silicon (Si) is recognized as a promising candidate for next-generation lithium-ion batteries (LIBs) owing to its high theoretical specific capacity (~4200 mAh g−1), low working potential (<0.4 V vs. Li/Li+), and abundant reserves. However, several challenges, such as severe volumetric changes (>300%) during lithiation/delithiation, unstable solid–electrolyte interphase …
often used as the negative electrode material in lithium-ion batteries, whilst metal oxides containing lithium, such as lithium cobalt oxide and lithium manganese oxide, are used as the positive electrode material. Lithium ions are conducted between the positive and negative electrodes by the electrolyte solution [3]. Anode, as an important part of LIBs, deeply affects …
