Lithium–sulfur batteries possess high specific capacity and low raw material costs, are considered to be a candidate for replacing traditional lithium-ion batteries. However, the shuttle effect of polysulfide and the low conductivity of sulfur seriously hinder the practical application of lithium–sulfur batteries. Herein, we proposed a hollow porous carbon sphere …
Herein, NiCo 2 S 4 /Carbon hollow spheres nanocomposites were successfully synthesized via high-temperature carbonization and hydrothermal methods as an anode material for lithium-ion batteries. The designed structure takes full advantage of the high specific capacity of NiCo 2 S 4 and the high conductivity of carbonaceous material.
Additionally, the inner cavity of carbon hollow spheres effectively excludes volume changes during the charge and discharge process, and improving the electrochemical performance of lithium-ion batteries through the synergistic effect between NiCo 2 S 4 and carbon hollow spheres.
Provided by the Springer Nature SharedIt content-sharing initiative The high theoretical capacity and low discharge potential of silicon have attracted much attention on Si-based anodes. Herein, hollow porous SiO2 nanocubes have been prepared via a two-step hard-template process and evaluated as electrode materials for lithium-ion batteries.
It is found that the formation of irreversible or reversible lithium silicates in the anodes determines the capacity of a deep-cycle battery, fast transportation of Li ions in hollow porous SiO 2 nanocubes is beneficial to the formation of Li 2 O and Si, contributing to the high reversible capacity.
In general, the electrochemical process of actual lithium-ion battery is extremely complex and the arc in the high-frequency region could be coupled with other electrochemical process, making it difficult to accurately analyze the intricate electrochemical process of electrodes.
Lithium-ion batteries (LIBs) are the dominant power source for a wide range of portable electronic devices due to their high energy density, long lifespan and environment benignity 1, 2.
Lithium–sulfur batteries possess high specific capacity and low raw material costs, are considered to be a candidate for replacing traditional lithium-ion batteries. However, the shuttle effect of polysulfide and the low conductivity of sulfur seriously hinder the practical application of lithium–sulfur batteries. Herein, we proposed a hollow porous carbon sphere …
Get PriceDifferent battery systems such as lithium–sulfur (Li–S) batteries, SIBs, and PIBs will be introduced with a focus on the contributions from their hollow characteristic. We demonstrate that structural engineering is highly effective in …
Get PriceThe optimised hollow-structured silicon nanoparticles, when used as the anode in a lithium-ion battery, exhibited a high reversible specific capacity over 630 mAhg−1, much higher than the 370 mAhg−1 from the commercial graphite anodes. This excellent electrochemical property of the nanoparticles could be attributed to their ...
Get PriceAbstract Carbon-coated SiO2 hollow nanospheres with different thickness of carbon layers have been synthesized using PAA as template and phenolic resin as carbon source. The hollow structure provides space for the bulk expansion of SiO2 when it works in lithium ion batteries. The carbon layer on the surface of SiO2 hollow nanosphere significantly …
Get PriceThe optimised hollow-structured silicon nanoparticles, when used as the anode in a lithium-ion battery, exhibited a high reversible specific capacity over 630 mAhg −1, much higher than the 370 mAhg −1 from the commercial graphite anodes. This excellent electrochemical property of the nanoparticles could be attributed to their optimised phase and …
Get PriceIt is found that the formation of irreversible or reversible lithium silicates in the anodes determines the capacity of a deep-cycle battery, fast transportation of Li ions in hollow …
Get PriceIn this paper, the Fe 3 O 4 @C hollow nanostructure synthesized by the template method is used as the anode electrode of a lithium-ion battery. The hollow spindle was used as the inner shell of the Fe 3 O 4 @C active material, which could relieve the expansion within the Fe 3 O 4 spindle.
Get PriceThe optimised hollow-structured silicon nanoparticles, when used as the anode in a lithium-ion battery, exhibited a high reversible specific capacity over 630 mAhg−1, much higher than the 370 mAhg−1 from the …
Get PriceHybrid hollow spheres with a few-layered MoS 2 entrapped carbon sheath (HFMECs) have been successfully synthesized by a 0D spatial confinement approach. In this facile process, a glucose-derived …
Get PriceReserving void space for silicon oxide-based (SiO x -based) anodes has proved highly efficient in tackling their volume expansion and contraction upon lithiation/delithiation. …
Get PriceHollow porous and defect-rich SiOCN is constructed by a facile one-step method. The formation of N─Si and N─C bonds enhances the lithium adsorption ability of the Si─O─C unit structure, ensuring a higher lithium storage capacity. In situ TEM and in situ EIS results demonstrate that Hp-SiOCN exhibits excellent structural stability and a ...
Get PriceThe lithium-ion battery (LIB) has become one of the most promising energy storage devices because of its relatively high energy density and reasonable rate capability 1,2.
Get PriceIt is found that the formation of irreversible or reversible lithium silicates in the anodes determines the capacity of a deep-cycle battery, fast transportation of Li ions in hollow porous...
Get PriceThe characteristic hollow... | Find, read and cite all the research you need on ResearchGate . Article. Hollow Carbon Nanospheres: Syntheses and Applications for Post Lithium Ion Batteries. June ...
Get PriceHollow porous and defect-rich SiOCN is constructed by a facile one-step method. The formation of N─Si and N─C bonds enhances the lithium adsorption ability of the …
Get PriceCarbon materials demonstrate huge potential in lithium-ion batteries (LIBs) and potassium-ion batteries (PIBs) due to the rich resources and considerable electrochemical reaction activity. However, the raw materials of most carbon materials come from non-renewable fossil materials with harsh and costly synthesis process, hindering the sustainable application …
Get PriceDifferent battery systems such as lithium–sulfur (Li–S) batteries, SIBs, and PIBs will be introduced with a focus on the contributions from their hollow characteristic. We demonstrate that structural engineering is highly effective in addressing the stability issue plaguing these post LIB technology; further, there is promising potential to ...
Get PriceThe lithium-ion battery (LIB) has become one of the most promising energy storage devices because of its relatively high energy density and reasonable rate capability 1,2.
Get PriceIn this study, for the first time, we devised a versatile approach to fabricate hollow porous bowl-shaped Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 (HPB-LMNCO) particles as …
Get PriceConsiderable research efforts have been devoted to the development of high energy/power density lithium-ion batteries ... Therefore, the porous, hollow and bowl-shaped characteristics synergistically enhance the intrinsic properties of LMNCO material, such as electrochemical reaction rate and mechanical stability, hence enabling superior …
Get PriceResearchers extend lithium metal anodes'' lifespan by 750% using eco-friendly hollow nanofiber membranes, improving battery performance.
Get PriceHerein, NiCo2S4/Carbon hollow spheres nanocomposites were successfully synthesized via high-temperature carbonization and hydrothermal methods as an anode …
Get Pricehollow nanocomposites enhance lithium storage in battery anodes . J. Liua, Y. X. Liub, J. N. Dingb, W. Yanb, Y. C. Weib, J. Xu*b. a Changzhou Vocational Institute of Industry Technology, Changzhou, Jiangsu, 213164, P. R . b School of Physics and Electronic Engineering, Jingjiang College, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. With society''s rapid progress, …
Get PriceLithium ion batteries ... The XRD pattern of 800A showed that after calcination under air, the characteristic peaks of Co nanoparticles still existed, and four distinct diffraction peaks appeared at 31.3°, 36.9°, 59.4° and 65.3° which were attributed to the (220), (311), (511), (440) crystal faces of Co 3 O 4, respectively. At the same time, a distinct characteristic peak at …
Get PriceHybrid hollow spheres with a few-layered MoS 2 entrapped carbon sheath (HFMECs) have been successfully synthesized by a 0D spatial confinement approach. In this facile process, a glucose-derived polysaccharide interacted with thiomolybdate on the surface of silica spheres followed by high temperature annealing to form an MoS 2 –C ...
Get PriceIn this study, for the first time, we devised a versatile approach to fabricate hollow porous bowl-shaped Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 (HPB-LMNCO) particles as cathode materials for LIBs and investigated their electrochemical performance.
Get PriceReserving void space for silicon oxide-based (SiO x -based) anodes has proved highly efficient in tackling their volume expansion and contraction upon lithiation/delithiation. Specially, hollow structure featured with sufficient internal spaces shows great promise in buffering the volumetric effect of SiO x.
Get PriceHerein, NiCo2S4/Carbon hollow spheres nanocomposites were successfully synthesized via high-temperature carbonization and hydrothermal methods as an anode material for lithium-ion batteries. The designed structure takes full advantage of the high specific capacity of NiCo2S4 and the high conductivity of carbonaceous material. The ...
Get PriceTiNb2O7 (TNO) is regarded as a promising anode candidate for lithium-ion batteries due to its good safety, high theoretical capacity, and good structural stability. However, its application is greatly hindered by its intrinsically poor lithium diffusivity and low conductivity. In this work, N-doped carbon-coated interconnected TNO hollow nanospheres (H-TNO@C) are …
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