Silicon is a promising material for high-energy anode materials for the next generation of lithium-ion batteries. The gain in specific capacity depends highly on the quality of the Si dispersion and on the size and shape of the nano-silicon. The aim
This chapter will explain why nanosilicon/carbon hybrids particles have strong interest for Li-ion applications, especially to limit SEI (solid electrolyte interface)-related
A facile strategy to construct silver-modified, ZnO-incorporated and carbon-coated silicon/porous-carbon nanofibers with enhanced lithium storage Small, 15 ( 18 ) ( 2019 ), p. 1900436
There have been few reports concerning the hydrothermal synthesis of silicon anode materials. In this manuscript, starting from the very cheap silica sol, we hydrothermally prepared porous silicon nanospheres in an autoclave at 180 °C. As anode materials for lithium-ion batteries (LIBs), the as-prepared nano-silicon anode without any carbon coating delivers a high
Journal of Colloid and Interface Science, 629 (Pt B) (2023), pp. 908-916. View PDF View article View in Scopus Google Scholar J. Zhao, B. Wang, Z. Zhan, et al. Boron-doped three-dimensional porous carbon framework/carbon shell encapsulated silicon composites for high-performance lithium-ion battery anodes Journal of Colloid and Interface Science,
Silicon-based materials has attracted attention as a promising candidate for lithium-ion batteries (LIBs) with high energy density. However, severe volume variation, pulverization, and poor conductivity hindered the development of Si based materials. In this study, porous Si microparticles supported by carbon nanotubes (p-Si/CNT) are fabricated through
Silicon, one of the most promising candidates as lithium-ion battery anode, has attracted much attention due to its high theoretical capacity, abundant existence, and mature infrastructure. Recently, Si nanostructures-based lithium-ion battery anode, with sophisticated structure designs and process development, has made significant progress. However, low cost
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 the resulted core−shell nanowires showed great performance as anode material. Since carbon has a much smaller capacity compared to
Despite the high theoretical capacity, silicon (Si) anodes in lithium-ion batteries have difficulty in meeting the commercial standards in various aspects. In particular, the huge volume change of Si makes it very challenging to simultaneously achieve high initial Coulombic efficiency (ICE) and long-term cycle life. Herein, we report spray pyrolysis to prepare Si–SiOx
Silicon has been touted as one of the most promising anode materials for next generation lithium ion batteries. Yet, how to build energetic silicon-based electrode architectures by addressing the structural and interfacial stability issues facing silicon anodes still remains a big challenge. Here, we develop a novel kind of self-supporting binder-free silicon-based anodes
Herein, we synthesized a low-cost, high-hardness resin-starch cross-linked porous hard carbon (SR-PHC) material, which exhibits both reduced cost and enhanced mechanical strength
In this study, the dual-coated silicon/carbon composite anode (Si@SiO x @C) with high silicon content of 85 % is obtained by high-energy ball milling and combined with
Silicon anodes for Li-ion batteries face challenges due to substantial volume changes and low electrical conductivity. To address these issues comprehensively, we employed electrospinning technology to integrate nitrogen-rich graphitic carbon nitride (g- $${hbox {C}_3hbox {N}_4}$$ C 3 N 4 ) with graphene-like structure into carbon nanofibers (CNFs),
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 encapsulated on their surface
Herein, silicon nanoparticles encapsulated in multifunctional crosslinked nano-silica/carbon hybrid matrix (Si@n-SiO 2 /C) composites are successfully synthesized via
A number of strategies have been proposed to address the challenges associated with silicon based anode applications, including the utilization of nano-silicon , the reasonable design of material structures [18, 19], and the composite of silicon with other materials .The dispersion of silicon particles into carbon matrix to form silicon/carbon composites is an effective method to
Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries: Overcoming Challenges and Real-World Applications: Mustafa Khan 1, Suxia Yan 1 (), Mujahid Ali 2, Faisal Mahmood 2, Yang Zheng 1, Guochun Li 1, Junfeng Liu 1 (), Xiaohui Song 3, Yong Wang 1 (): 1 Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, Jiangsu, People''s
A hollow nitrogen-doped carbon layer-coated nano-silicon (Si@HNC) composite with core-shell structure was designed and prepared by precursor solution coating, tannic acid etching, and
Herein, nano silicon integrated hard carbon (20Si@HC, 20 wt% nano silicon) is prepared by pyrolyzing nano silicon in-situ coated a conjugated microporous polymer (CMP). CMP-derived hard carbon coating features developed porous structure, which not only deliver a high lithium storage capacity, but also provide enough space for the volume expansion of nano
Herein, we used a controlled two-step method including electrospraying followed with calcination treatment by CVD furnace to design novel electrodes of Si/Si x /C and Sn/C microrods array
2.2 Preparation of Silicon-Carbon-Graphene (Si-C-GR) Composite. Graphene oxide (GO) was prepared according to the Modified Hummers method (Cote et al., 2009), and glucose was used as a carbon source for the composites. To prepare a composite including carbon bilayers, we conducted an aerosol process using silicon, and a colloid of graphene
We present Si nanotubes prepared by reductive decomposition of a silicon precursor in an alumina template and etching. These nanotubes show impressive results, which shows very high reversible charge capacity of 3247 mA h/g with Coulombic efficiency of 89%, and also demonstrate superior capacity retention even at 5C rate (=15 A/g). Furthermore, the
Silicon has been the most ideal candidate anode material for high-capacity lithium-ion batteries owing to its higher theoretical capacity, relatively low potential, and rich resources. Unfortunately, the significant volume expansion (300%) and low intrinsic conductivity result in poor electrochemical performance during the charging-discharging process. Herein,
In the present work, thermally carbonized mesoporous silicon (TCPSi) microparticles and single-walled carbon nanotubes (CNTs) are conjugated to create a hybrid
Semantic Scholar extracted view of "Nano-silicon @ soft carbon embedded in graphene scaffold: High-performance 3D free-standing anode for lithium-ion batteries" by Fei Wang et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar''s Logo. Search 223,990,653 papers from all fields of science. Search. Sign In Create Free
An optimized nanostructure design of Si-based anode material for high-performance lithium-ion batteries is realized in the form of Si/C nanoporous microspheres. Self-assembled Si/C nanoporous microspheres are synthesized by a programmed method and are investigated by scanning electron microscopy, transmission electron microscopy, X-ray
Nano-silicon (Si) integrating carbonous material has been recognized as a viable approach for restraining the intrinsic serious volume change and enhancing poor conductivity,
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 mAh·g−1 is
Silicon-carbon composites can combine the advantages of silicon and carbon to improve conductivity and capacity retention at the same time. The yolk-shell structure can
Silicon is considered as one of the most favorable anode materials for next-generation lithium-ion batteries. Nanoporous silicon is synthesized via a green, facile, and controllable vacuum distillation method from the commercial Mg2Si alloy. Nanoporous silicon is formed by the evaporation of low boiling point Mg. In this method, the magnesium metal from the Mg2Si alloy
Silicon/carbon composite or pure silicon anodes are used on Cu-current collectors in SSB cells. Silicon/carbon composites are progressing to industrialization, whereas pure silicon anodes demonstrate promising results. [124, 125] To prevent silicon pulverization, the electrode structure of 3D composite anodes must be porous through a porous carbon structure
This produces a unique nano/microstructured Si–C hybrid composite comprised of silicon nanoparticles embedded in micron-sized amorphous carbon balls derived from corn starch that is capsuled by thin
Silicon has been considered as the most promising anode candidate for next-generation lithium-ion batteries. However, the fast capacity decay caused by huge volume expansion and low electronic conductivity limit
Silicon (Si)-based material is a promising anode material for next-generation lithium-ion batteries (LIBs). Herein, we report the fabrication of a silicon oxide–carbon (SiOx/C) nanocomposite through the reaction between
Nonfilling carbon coating of porous silicon micrometer-sized particles for high-performance lithium battery anodes. ACS Nano 9, 2540–2547 (2015). Article CAS PubMed Google Scholar Ikonen, T. et
DOI: 10.1016/J.JECHEM.2018.07.008 Corpus ID: 104830156; Yolk-shell Si/C composites with multiple Si nanoparticles encapsulated into double carbon shells as lithium-ion battery anodes
Silicon/carbon composite has been a promising anode material for lithium-ion batteries (LIBs). Carbon nanotubes (CNTs) possess high electrical conductivity, specific area, and mechanical strength, holding great potential for constructing advanced Si/C anode materials. However, the unstable interface and tricky synthesis processes hinder practical applications of
Journal of Colloid and Interface Science. Volume 667, August 2024, Pages 470-477. Regular Article. Graphene-doped silicon-carbon materials with multi-interface structures for lithium-ion battery anodes. Author links open overlay panel Xin Li a, Kun Li a, Man Yuan a, Jiapeng Zhang a, Haiyan Liu b, Ang Li a, Xiaohong Chen a, Huaihe Song a. Show more. Add
Here, a new micro-nano sphere structure of silicon–carbon composite anode materials is fabricated using spray drying and surface modification. Fulvic acid (FA) is used as the carbon source, which forms voids between nanoscale silicon–carbon particles. The results demonstrate by rate performance that particle voids can significantly enhance
The invention discloses a nano silica gel electrolyte for a lead-acid storage battery and a preparation method of the electrolyte. The nano silica gel electrolyte comprises the following component A: sodium silicate solution with additive, and component B: dilute sulphuric acid solution with the specific gravity of 1.40g/cm<3>, wherein the weight ratio of the sodium silicate
G. Carbonari, F. Maroni, A. Birrozzi, R. Tossici, F. Croce et al., Synthesis and characterization of Si nanoparticles wrapped by V 2 O 5 nanosheets as a composite anode material for lithium-ion batteries. Electrochim.
Although silicon-based materials have a large specific capacity, they have not yet been widely used in lithium-ion batteries. The main reason is that the large volume change of silicon leads to poor cycle performance. The current solution is to prepare materials into nanoscale and form composite materials.
Silicon is one of the most concerned anode materials for lithium-ion batteries due to its high theoretical specific capacity. However, its significant volume expansion during cycling limits its development and application.
Creating a library of standardized, high-performance nanoengineered Si particles could accelerate their integration into commercial battery systems. 3. Innovative Binder Technologies: The advent of self-healing polymer binders has opened a new chapter in addressing the mechanical stresses within Si-based anodes.
Tang Y, Yuan S, Guo Y et al (2016) Highly ordered mesoporous Si/C nanocomposite as high performance anode material for Li-ion batteries. Electrochim Acta 200:182–188
This structure effectively buffers volume expansion of silicon, thereby preserving the structural integrity of electrode and leading to excellent battery performance. Table 1. A comparison of electrochemical performance and preparation method among this work (Si@HNC) and recently reported Si-based anodes for LIBs.
Contact us for competitive quotes on any of our energy storage and UPS products
Get a Quote