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 copper (Cu) foil current …
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.
Nano-silicon (nano-Si) and its composites have been regarded as the most promising negative electrode materials for producing the next-generation Li-ion batteries (LIBs), due to their ultrahigh theoretical capacity.
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.
Analysis of the electrochemical properties of the synthesized Cu-Si nanocomposite reveals great promise for use as a lithium-ion battery anode. Table 3 summarizes recent advancements in the preparation of nano-silicon and its composites using molten salt electrolysis and various established technologies.
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 copper (Cu) foil current …
1 Introduction. Among the various Li storage materials, 1 silicon (Si) is considered as one of the most promising materials to be incorporated within negative electrodes (anodes) to increase the energy density of current lithium ion batteries (LIBs). Si has higher capacities than other Li storage metals, however, the incorporation of significant amounts of Si …
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 …
Existing limitations and possible solving approach of silicon-carbon composite anode materials were revealed. Silicon-based anode materials will replace traditional graphite …
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 ...
Disclosed is a silicon-carbon composite for a negative active material of a lithium secondary battery, including carbon nanofibers and silicon particles, wherein the silicon particles are coated with amorphous silica. In the silicon-carbon composite of the invention, silicon is provided in the form of a composite with carbon fibers and the surface of silicon particles is coated with …
Thus, to address the critical need for higher energy density LiBs (>400 Wh kg −1 and >800 Wh L −1), 4 it necessitates the exploration and development of novel negative electrode materials that exhibit high capacity …
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.
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 …
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 …
We report the interfacial study of a silicon/carbon nanofiber/graphene composite as a potentially high-performance anode for rechargeable lithium-ion batteries (LIBs).
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 ...
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.
In-vitro electrochemical prelithiation has been demonstrated as a remarkable approach in enhancing the electrochemical performance of Silicon-rich Silicon/Graphite blend negative electrodes in Li-Ion batteries. The …
Techniques for Silicon/Carbon Negative Electrodes in Lithium Ion Batteries Gerrit Michael Overhoff,[a] Roman Nölle,[b] Vassilios Siozios,[b] Martin Winter,*[a, b] and Tobias Placke*[b] 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 ...
Nano-silicon (nano-Si) and its composites have been regarded as the most promising negative electrode materials for producing the next-generation Li-ion batteries …
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 …
Silicon (Si) is recognized as a promising candidate for next-generation lithium-ion batteries (LIBs) owing to its high theoretical specific capacity (~4200 mAh g−1), low working potential (<0.4 V vs. Li/Li+), and abundant reserves. However, several challenges, such as severe volumetric changes (>300%) during lithiation/delithiation, unstable solid–electrolyte interphase …
The silicon-based negative electrode materials prepared through alloying exhibit significantly enhanced electrode conductivity and rate performance, demonstrating excellent …
Therefore, researchers have improved the performance of negative electrode materials through silicon-carbon composites. This article introduces the current design ideas of …
The silicon-based negative electrode materials prepared through alloying exhibit significantly enhanced electrode conductivity and rate performance, demonstrating excellent electrochemical lithium storage capability. Ren employed the magnesium thermal reduction method to prepare mesoporous Si-based nanoparticles doped with Zn [22].
In-vitro electrochemical prelithiation has been demonstrated as a remarkable approach in enhancing the electrochemical performance of Silicon-rich Silicon/Graphite blend negative electrodes in Li-Ion batteries. The effectiveness of this strategy is significantly highlighted when Carbon Nanotubes are utilized as an electrode additive material.
In situ-formed nitrogen-doped carbon/silicon-based materials as negative electrodes for lithium-ion batteries October 2021 Journal of Electroanalytical Chemistry 901(4):115732
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 ...
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 ...
Nano-silicon (nano-Si) and its composites have been regarded as the most promising negative electrode materials for producing the next-generation Li-ion batteries (LIBs), due to their ultrahigh theoretical capacity.
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 ...
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