Lithium-ion battery core-shell structure
Simulation and optimization of silicon/carbon core-shell structures in lithium-ion batteries …
Silicon is considered as a first candidate for ideal anode material of the next-generation lithium-ion battery due to its high theoretical capacity to meet the demand for higher energy density. On the other hand, high theoretical capacity is accompanied by massive volume expansion, which gives arise to high stress and crack and pulverization of anode …
Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery …
Safety issues limit the large-scale application of lithium-ion batteries. Here, a new type of N–H-microcapsule fire extinguishing agent with a core–shell structure is prepared by using melamine-urea-formaldehyde resin as the shell material, and perfluoro(2-methyl-3-pentanone) and heptafluorocyclopentane as t
A novel silicon graphite composite material with core-shell structure as an anode for lithium-ion batteries
In this work, a novel core-shell structure consisting of a porous graphite core, a nanosilicon filler layer, and a pitch coating carbon shell has been developed for lithium-ion battery anode material. This structure was prepared by liquid-phase milling and carbonization ...
Review of the Scalable Core–Shell Synthesis Methods: The …
The core–shell structure can enhance the electrochemical performance and battery stability because 1) the shell layer of the cathode material has the potential to serve as a …
Bi2S3–CoS@C core
A specially designed Bi 2 S 3-CoS@C core-shell structure is synthesized using ZIF-67 as template. The sufficient hollow space is conducive to the transport of ions, an increase in the conductivity and accommodating the volume changes. • After 100 cycles, Bi 2 S 3-CoS@C electrode exhibits a capacity of 1390 mAh g-1 at a current density of 100 …
Li ion battery materials with core–shell nanostructures
Nanomaterials have some disadvantages in application as Li ion battery materials, such as low density, poor electronic conductivity and high risk of surface side reactions. In recent years, materials with core–shell nanostructures, which was initially a common concept in semiconductors, have been introduced to the field of Li ion batteries in order to …
Core-shell structure LiNi0.8Co0.1Mn0.1O2 cathode material with …
The design of Ni-rich core and Mn-rich shell is of great significance for improving the electrochemical performance of lithium-ion battery cathode materials at high voltage. The core-shell structure LiNi0.8Co0.1Mn0.1O2 (CS-NCM811) cathode materials is prepared through co-precipitation method. XRD shows that the cathode materials have α …
Facile spray-drying/pyrolysis synthesis of core–shell structure graphite/silicon-porous carbon composite as a superior anode for Li-ion batteries
2.2. Materials characterization and electrochemical test The crystal structure, cross-sectional morphology, and microstructural morphology of the as-prepared Si/C composite were characterized by X-ray diffraction (XRD; PANalytical X''Pert PRO, Cu/K α radiation, λ = 1.5406 nm), scanning electron microscopy (SEM; ZEISS ULTRA 55), ion …
Nanomaterials | Free Full-Text | TiO2-Coated Silicon Nanoparticle Core-Shell Structure for High-Capacity Lithium-Ion Battery …
The synergistic effect of the core-shell structure and the conductive network structure to enhance the cycling stability of the silicon-based anode provides a new idea for the preparation of silicon-based anode materials for …
Core-shell structure of polyacrylate-based binder enhancing the wet-adhesion strength and the kinetics of lithium-ion …
1. Introduction Lithium-ion batteries (LIBs) are widely used as energy storage systems in everyday devices including portable IT devices, e-mobilities, and stationary energy systems. LIBs consist of multiple cells, and the binder is an essential component of each cell ...
Unlocking the significant role of shell material for lithium-ion battery …
Cold-rolled steel are commonly used as battery shell in cylindrical lithium-ion battery and can be classified into six categories based on mechanical properties shown in Fig. S1. Target LIB shells were extracted from commercially available 18,650 NCA (Nickel Cobalt Aluminum Oxide)/graphite cylindrical lithium-ion battery with CT images …
Metal-organic frameworks-derived CoMOF-D@Si@C core-shell …
The superior rate performance of the CoMOF-D@Si@C electrode is associated with the ingenious core-shell structure where the nanoscale Si combined …
The core-shell structure of GaIn@SiO2 as an anode material for lithium-ion batteries …
In this study, amorphous SiO2 is used to coat GaIn nanodroplets (GaIn NDs) to construct the core-shell structure of GaIn@SiO2 nanodroplets (GaIn@SiO2 NDs). We found that the amorphous SiO2 shell (~12 nm) formed a stable solid electrolyte interface (SEI) film, alleviated the volume expansion, and provided electron/ion transport channels …
A novel durable double-conductive core-shell structure applying to the synthesis of silicon anode for lithium ion batteries …
The synthesis procedure of p-Si-Ag/C composite is illustrated in Fig. 1 spired by the structure of fig in natural, a double-conductive core-shell structure are designed though the deposition of silver nano particles in the internal pores of porous silicon and followed by ...
Mechanical Modeling of Particles with Active Core–Shell …
Active particles with a core–shell structure exhibit superior physical, electrochemical, and mechanical properties over their single-component counterparts in …
Mechanical Modeling of Particles with Active Core–Shell Structures for Lithium-Ion Battery …
Active particles with a core–shell structure exhibit superior physical, electrochemical, and mechanical properties over their single-component counterparts in lithium-ion battery electrodes. Modeling plays an important role in providing insights into the design and utilization of this structure. However, previous models typically assume a …
Core-shell structure of LiMn2O4 cathode material reduces phase …
Core-shell structure of LiMn 2 O 4 cathode material reduces phase transition and Mn dissolution in Li-ion batteries. Chanikarn Tomon, Sangchai Sarawutanukul, Nutthaphon...
Review Recent progress in core–shell structural materials towards high performance batteries …
1. Introduction In the current context of the energy crisis, the development of efficient energy storage devices has become a prominent research area. Battery systems like lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), …
A honeycomb-cobweb inspired hierarchical core–shell structure design for electrospun silicon/carbon fibers as lithium-ion battery …
Facile spray-drying/pyrolysis synthesis of core-shell structure graphite/silicon-porous carbon composite as a superior anode for Li-ion batteries J. Power Sources, 248 ( 2014 ), pp. 721 - 728 View PDF View article View in Scopus Google Scholar
Spherical and core–shell-structured LiMn1.5Ni0.5O4 lithium-ion …
Core–shell-structured materials with Co-doped core and Al-doped shell segments were synthesized with the aim to create synergy between two dopants. Indeed, …
Review Recent progress in core–shell structural materials …
In lithium-oxygen batteries, core–shell materials can improve oxygen and lithium-ion diffusion, resulting in superior energy density and long cycle life [42]. …
Simulation and optimization of silicon/carbon core-shell structures …
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Construction of a LiVO 3 /C core–shell structure for high-rate lithium …
As an alternative anode material for lithium-ion batteries (LIBs), LiVO3 has shown great potential. We wished to fully reveal its potential for lithium storage. We introduced low-cost oxalic acid as a carbon source to construct a LiVO3/C core–shell structure. Employed as LIB anodes, the highly reversible spe
Spherical and core–shell-structured LiMn1.5Ni0.5O4 lithium-ion battery …
Spherical LiMn1.5Ni0.5O4(LMN) spinel materials with Co or Al doping were synthesized using coprecipitation technique and the dopants'' impacts on cathode performance were explored. While both dopants were conducive to the capacity retention of LMN spinel, aluminum was more effective. Cobalt doping also helped increase the …
Influence of the Silicon–Carbon Interface on the …
Silicon is one of the most promising materials when it comes to lithium-ion battery anodes because of its high theoretical capacity and the low working potential versus Li/Li+. However, the drastic …
A simple method to prepare a polydopamine modified core-shell structure composite separator for application in high-safety lithium-ion batteries ...
A simple method to prepare a polydopamine modified core-shell structure composite separator for application in high-safety lithium-ion batteries Author links open overlay panel Chuan Shi a 1, Jianhui Dai b 1, Shaohua Huang c, Chao Li a, Xiu Shen a, Peng Zhang b, Dezhi Wu c, Daoheng Sun c, Jinbao Zhao a b
Nano-sized LiFePO4/C composite with core-shell structure as …
As cathode material for lithium ion battery, the core-shell LiFePO 4 /C composite exhibits high initial capacity of 161 mAh g −1 at 0.1 C, excellent high-rate …
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