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Battery with silicon carbon as negative electrode material

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

Electrochemical Synthesis of Multidimensional

In situ-formed nitrogen-doped carbon/silicon-based materials

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

Characteristics and electrochemical performances of silicon/carbon

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...

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 production of silicon

Si-decorated CNT network as negative electrode for lithium-ion

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

Preparation and electrochemical performances for silicon-carbon

A composite electrode model for lithium-ion batteries with silicon

Lithium-ion (Li-ion) batteries with high energy densities are desired to address the range anxiety of electric vehicles. A promising way to improve energy density is through adding silicon to the graphite negative electrode, as silicon has a large theoretical specific capacity of up to 4200 mAh g − 1 [1].However, there are a number of problems when

Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative

Among Li-alloy forming materials, Silicon (Si) is undoubtedly the most auspicious negative electrode candidate to realize high-energy density LIBs. This is due to its various enticing features such as high theoretical specific capacity of 3590 mAh g −1 (for Li 3.75 Si phase at 20 ° C, which is nearly 10 times greater than that of Gr), high natural abundance in the earth''s crust

Characteristics and electrochemical performances of silicon/carbon

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 characterize their electrochemical performances, the prepared Si/CNF/rGO and Si/rGO composite films are cut into small pieces and used as independent working

A high-performance silicon/carbon composite as

As a consequence, the first reversible capacity and initial coulombic efficiency of the silicon/carbon composite are 936.4 mAh g −1 and 88.6% in half-cell and the full-cell 18650 cylindrical battery using our

Pitch-based carbon/nano-silicon composite, an

Preparation and electrochemical performances for silicon-carbon

US8986577B2

Negative electrode active material and rechargeable battery having the same KR101550781B1 (en) 2014-07-23: 2015-09-08 (주)오렌지파워 : Method of forming silicon based active material for rechargeable battery KR101631300B1 (en) 2014-09-11: 2016-06-20: 계명대학교 산학협력단: Manufacturing method of SiO2/CNFs composite and Lithium Secondary battery using of Ni-Cu

Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative Electrodes

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

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 recent battery research.

Design of ultrafine silicon structure for lithium battery and

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

Silicon-carbon negative electrode material for lithium-ion battery

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

Decoupling the Effects of Interface Chemical Degradation and

6 天之前· Silicon is a promising negative electrode material for solid-state batteries (SSBs) due to its high specific capacity and ability to prevent lithium dendrite formation. However, SSBs with silicon electrodes currently suffer from poor cycling stability, despite chemical engineering efforts. This study investigates the cycling failure mechanism of composite Si/Li

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

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 electrode; 2) The elastic

Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative

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

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

Cycle characteristic analysis of Negative Electrode of Silicon-Carbon

Silicon negative electrode has more than 10 times as theoretical capacity as the conventional electrode and is considered to be the next-generation secondary battery materials. However, in the process of taking in the lithium during charging, the volume expands as much as 4 times that easily result in breakdown. Therefore, cycle life had become

Characteristics and electrochemical performances of silicon/carbon

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

Design of ultrafine silicon structure for lithium battery and

Therefore, researchers have improved the performance of negative electrode materials through silicon-carbon composites. This article introduces the current design ideas of

Design of ultrafine silicon structure for lithium battery and

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

Pitch-based carbon/nano-silicon composite, an efficient anode

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

Battery with silicon carbon as negative electrode material [PDF]

6 FAQs about [Battery with silicon carbon as negative electrode material]

Is silicon a good negative electrode material for lithium ion batteries?

Can silicon-carbon materials be negative electrode materials for lithium-ion batteries?

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)

Can a negative electrode material be used for Li-ion batteries?

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.

What happens when silicon is used as a negative electrode material?

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.

Can silicon/carbon nanocomposites be used as anode materials for Li-ion batteries?

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.

How can silicon-carbon composite materials improve the conductivity of negative electrode materials?

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 ].