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.
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 atmosphere of silicon nanoparticles, obtained by a laser pyrolysis technique, and a low cost carbon source: petroleum pitch.
Inspired by the possibilities of value-added of this raw material, we propose the facile preparation of silicon/carbon nanocomposites using carbon-coated silicon nanoparticles (<100 nm) and a petroleum pitch as anode materials for Li-ion batteries.
Silicon oxides: a promising family of anode materials for lithium-ion batteries Si-C-O glass-like compound/exfoliated graphite composites for negative electrode of lithium ion battery Stable and efficient li-ion battery anodes prepared from polymer-derived silicon oxycarbide-carbon nanotube shell/core composites
However, when silicon is used as a negative electrode material, silicon particles undergo significant volume expansion and contraction (approximately 300%) in the processes of lithiation and delithiation, respectively.
It is an effective way to construct silicon-carbon composite materials, which can enhance the conductivity of silicon based negative electrode materials, improve the dispersion of Si particle and then suppress its aggregation, and alleviate the volume change of electrode materials during the lithiantion and dilithination [ 26 ].
Provided by the Springer Nature SharedIt content-sharing initiative Silicon-carbon materials have broad development prospects as negative electrode materials for lithium-ion batteries. In this paper, polyvinyl butyral (PVB)
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.
In this study, two-electrode batteries were prepared using Si/CNF/rGO and Si/rGO composite materials as negative electrode active materials for LIBs. To test the electrodes and...
In summary, this article proposes a simple and safe method to synthesize high-performance porous silicon carbon negative electrode materials. The porous structure of the material provides space for the volume expansion of silicon, slows down the huge stress caused by the volume expansion of silicon, and supplies abundant ion transport channels ...
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 research. Here, we report the synthesis and electrochemical evaluation of in situ-formed nitrogen-doped carbon/SiOC. The materials were synthesized by a sol–gel process using 3 ...
Existing limitations and possible solving approach of silicon-carbon composite anode materials were revealed. Silicon-based anode materials will replace traditional graphite anode materials and become one of the most promising anode materials for the next generation of lithium-ion batteries due to their high theoretical lithium storage capacity.
Silicon/carbon composites, which integrate the high lithium storage performance of silicon with the exceptional mechanical strength and conductivity of carbon, will replace the …
Silicon-carbon materials have broad development prospects as negative electrode materials for lithium-ion batteries. In this paper, polyvinyl butyral (PVB)-based …
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 atmosphere of silicon nanoparticles, obtained by a laser pyrolysis technique, and a low cost carbon source: petroleum pitch. The effect of ...
Prelithiation conducted on MWCNTs and Super P-containing Si negative electrode-based full-cells has proven to be highly effective method in improving key battery performance indicators including long-term cycling, power output and CE, with more notable positive impact being on MWCNTs-Si/Gr negative electrode-based full-cell compared to its ...
Existing limitations and possible solving approach of silicon-carbon composite anode materials were revealed. Silicon-based anode materials will replace traditional graphite …
With a theoretical capacity of 4200 mAh/g, silicon is an appealing negative electrode material for rechargeable lithium batteries. However, silicon electrodes are plagued by large volume changes during cycling and poor room-temperature kinetics.1 Recent efforts have focused on improving silicon''s capacity retention by using silicon/carbon ...
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 research. …
Negative electrode chemistry: from pure silicon to silicon-based and silicon-derivative Pure Si. The electrochemical reaction between Li 0 and elemental Si has been known since approximately the ...
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 production of silicon nanoparticles. …
In order to overcome the above mentioned problems dab-like defined silicon was synthesized by reaction of silicon tetrachloride using magnesium powder [44].After 100 cycles, Li showed a reversible competence of 1125 mA h g −1 at 1 A g −1.The polymers of conducting properties have also been used as electrode supplies due to their flexibility, …
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
Silicon/carbon composites, which integrate the high lithium storage performance of silicon with the exceptional mechanical strength and conductivity of carbon, will replace the traditional graphite electrodes for high-energy lithium-ion batteries. Various strategies have been designed to synthesize silicon/carbon composites for tackling the ...
Therefore, researchers have improved the performance of negative electrode materials through silicon-carbon composites. This article introduces the current design ideas of …
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 …
Prelithiation conducted on MWCNTs and Super P-containing Si negative electrode-based full-cells has proven to be highly effective method in improving key battery …
Material compositing, wherein one material component (e.g., Si) is used to store Li, and the other (e.g., carbon) to enhance the overall conductivity and mechanical stability, 61, 98,99,100,101 ...
We report the interfacial study of a silicon/carbon nanofiber/graphene composite as a potentially high-performance anode for rechargeable lithium-ion batteries (LIBs).
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; adding the carbon …
Therefore, researchers have improved the performance of negative electrode materials through silicon-carbon composites. This article introduces the current design ideas of ultra-fine silicon structure for lithium batteries and the method of compounding with carbon materials, and reviews the research progress of the performance of silicon-carbon ...
With a theoretical capacity of 4200 mAh/g, silicon is an appealing negative electrode material for rechargeable lithium batteries. However, silicon electrodes are plagued by large volume …
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 …
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