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Electrochemical Synthesis of Multidimensional Nanostructured Silicon …
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 their cyclability. Herein, a controllable and facile electrolysis route to prepare Si nanotubes (SNTs), Si nanowires (SNWs), and Si …
Nanostructured Silicon–Carbon 3D Electrode Architectures for High-Performance Lithium-Ion Batteries …
Silicon is an attractive anode material for lithium-ion batteries. However, silicon anodes have the issue of volume change, which causes pulverization and subsequently rapid capacity fade. Herein, we report organic binder and conducting diluent-free silicon–carbon 3D electrodes as anodes for lithium-ion batteries, where we replace the conventional …
Novel constructive self-healing binder for silicon anodes with high ...
To verify the effect of CA on enhancing PAA and Si, Fourier transform infrared (FTIR) spectroscopy test was carried out. The C = O stretching vibration peak of PAA at 1710 cm −1 shifts to a lower wavenumbers of 1690 cm −1 after physical cross-linking with CA, which demonstrates the formation of hydrogen bonds (Fig. 2 a). As shown in …
Design-Considerations regarding Silicon/Graphite and …
It is commonly accepted that the biggest gains can be achieved by improving or changing the positive electrode materials, since generally commercially utilized cathode materials like lithium ...
Prelithiated Carbon Nanotube-Embedded Silicon-based Negative …
Multi-walled carbon Nanotubes (MWCNTs) are hailed as beneficial conductive agents in Silicon (Si)-based negative electrodes due to their unique features …
Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion batteries | Nature
Although promising electrode systems have recently been proposed1,2,3,4,5,6,7, their lifespans are limited by Li-alloying agglomeration8 or the growth of passivation layers9, which prevent the ...
A solid-state lithium-ion battery with micron-sized silicon anode ...
A solid-state lithium-ion battery with micron-sized silicon ...
Preparation and electrochemical performances for silicon-carbon ternary anode materials …
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 …
Pitch-based carbon/nano-silicon composite, an …
As silicon–carbon electrodes with low silicon ratio are the negative electrode foreseen by battery manufacturers for the next generation of Li-ion batteries, a great effort has to be made to improve …
Cycling performance and failure behavior of lithium-ion battery Silicon-Carbon composite electrode …
1. Introduction With the development of new energy vehicles and intelligent devices, the demand for lithium battery energy density is increasing [1], [2].Graphite currently serves as the main material for the negative electrode of lithium batteries. Due to technological ...
Design of ultrafine silicon structure for lithium battery and research progress of silicon-carbon composite negative electrode materials
In the field of high-energy lithium batteries, porous silicon/metal composites have attracted wide attention because of their large specific surface area, extremely thin pore walls, tough frame ...
Si-decorated CNT network as negative electrode for lithium-ion battery …
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) composite for Li-ion batteries. Comparatively inexpensive silica and magnesium powder were used in typical hydrothermal method along with carbon nanotubes for the …
Nanostructured Silicon–Carbon 3D Electrode …
Silicon is an attractive anode material for lithium-ion batteries. However, silicon anodes have the issue of volume change, which causes pulverization and subsequently rapid capacity fade. Herein, we report …
Preparation of porous silicon/metal composite negative electrode ...
The high specific capacity and low lithium insertion potential of silicon materials make them the best choice to replace traditional graphite negative electrodes. Pure silicon negative electrodes ...
Li-Rich Li-Si Alloy As A Lithium-Containing Negative Electrode Material ...
Li-Rich Li-Si Alloy As A Lithium-Containing Negative ...
Lithium ion battery silicon carbon composite negative electrode ...
Si sill is a kind of conventional lithium ion battery negative material, that in the material that people study up to now, theoretical specific capacity is the highest, the theoretical specific capacity of pure silicon is 4200mAh/g, much larger than the negative material native graphite of present stage commercialization and the theoretical capacity of …
Design-Considerations regarding Silicon/Graphite and Tin/Graphite Composite Electrodes for Lithium-Ion Batteries …
Design-Considerations regarding Silicon/Graphite and Tin ...
Advanced Electrode Materials in Lithium Batteries: Retrospect …
Advanced Electrode Materials in Lithium Batteries
The preparation of graphite/silicon@carbon composites for lithium-ion batteries through molten salts electrolysis | Journal of Materials Science
High-specific-capacity materials are crucial for the high-energy-density lithium-ion secondary batteries as the automakers and customers are both eager to extend the cruising range of electric vehicles. The current commercial silicon/carbon composites are based on the mechanical mixture of silicon and graphite, but this weak combination …
Carbon−Silicon Core−Shell Nanowires as High Capacity Electrode …
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 …
A Thorough Analysis of Two Different Pre‐Lithiation …
Techniques for Silicon/Carbon Negative Electrodes in Lithium Ion Batteries Gerrit Michael ... 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 ...
Characteristics and electrochemical performances of …
We report the interfacial study of a silicon/carbon nanofiber/graphene composite as a potentially high-performance anode for rechargeable lithium-ion …
A composite electrode model for lithium-ion batteries with silicon/graphite negative electrodes …
Silicon is a promising negative electrode material with a high specific capacity, which is desirable for commercial lithium-ion batteries. It is often blended with graphite to form a composite anode to extend lifetime, however, the electrochemical interactions between silicon and graphite have not been fully investigated.
Preparation and electrochemical performances for silicon-carbon …
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 …
Design of ultrafine silicon structure for lithium battery and …
This article introduces the current design ideas of ultra-fine silicon structure for lithium batteries and the method of compounding with carbon materials, and …
Cycling performance and failure behavior of lithium-ion battery …
Graphite currently serves as the main material for the negative electrode of lithium batteries. Due to technological advancements, there is an urgent need to …
Pitch-based carbon/nano-silicon composite, an …
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 …
Si/C Composites as Negative Electrode for High Energy Lithium …
Among them the most successful strategy is to incorporate other components into silicon to form composite, especially the carbon medium. In this mini review, the recent progress on Si/C materials used as negative electrode of LIBs is summarized such as Si/amorphous carbon composite, Si/graphene composites, …
In situ-formed nitrogen-doped carbon/silicon-based materials as …
The development of negative electrode materials with better performance than those currently used in Li-ion technology has been a major focus of …
Li-Rich Li-Si Alloy As A Lithium-Containing Negative …
Li-Rich Li-Si Alloy As A Lithium-Containing Negative ...
Nanostructured Si−C Composites As High‐Capacity Anode Material …
The lithium alloy forming element silicon is another attractive alternative to lithium due to its high gravimetric and volumetric capacity (1857 mAh g −1, 2190 mAh cm −3), low delithiation potential (0.4 V vs. Li/Li +) and high abundance lowering battery production costs. 12, 16, 17, 18 Tesla just recently announced that their future ...
Electrochemical Preparation of Nano-Sized Silicon as a …
silicon. Silicon is a potential lithium-ion battery electrode material owing to its very high theoretical specific capacity of 4200mA·h g−1, but its expansion during lithiation limits its use. Therefore, we prepared a composite of silicon and carbon, which is known to reduce these volumetric changes,28,29 and we report the electrochemical ...
Preparation and electrochemical performances for silicon …
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 ... lithium-ion battery electrode materials with high electrochemi-cal performances [1–3]. ...
Cycling performance and failure behavior of lithium-ion battery Silicon ...
This could be attributed to the following two factors: 1) Si@C possesses a higher amorphous carbon content than Si@G@C, which enhances the buffering effect of silicon expansion during electrode cycling, maintains the mechanical contact of the silicon material within the electrode, and ensures the permeability of lithium ions through the ...
Chemomechanical modeling of lithiation-induced failure in high-volume-change electrode materials for lithium ion batteries
Chemomechanical modeling of lithiation-induced failure in ...
Negative electrode materials for high-energy density Li
These carbon materials typically achieve 200–300 mAh g −1, and even the recently published results have shown 500 mAh g −1 [80]. ... Stable cycle performance of a phosphorus negative electrode in lithium-ion batteries derived from ionic liquid electrolytes, 13 ...
Stable high-capacity and high-rate silicon-based lithium battery …
Stable high-capacity and high-rate silicon-based lithium ...
A Thorough Analysis of Two Different Pre‐Lithiation Techniques for Silicon/Carbon Negative Electrodes in Lithium Ion Batteries …
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