With the development of high-performance electrode materials, sodium-ion batteries have been extensively studied and could potentially be applied in various fields to replace the lithium-ion cells, owing to the low cost
Hard carbon used as anode for lithium-ion batteries is mainly prepared from precursors such as pitch-based, biomass-based, and resin-based. Precursors for preparing hard carbon include asphalt, biomass, sugar, phenolic resin, organic polymers, etc. Hard carbon materials prepared from different substances show similar charge and discharge curves.
Mg-templated hard carbon as an extremely high capacity negative electrode material for Na-ion batteries is successfully synthesized by heating a freeze-dried mixture of magnesium gluconate and glucose.
In this work, Fe 3 Mo 3 C/Mo 2 C@CNTs negative electrode materials was prepared by hydrothermal method and high-temperature carbonization with carbon nanotubes as host. The influence of carbonization temperature on phase composition, morphology, specific surface area and electrochemical properties were systematically studied. The present work
The results show that heteroatomic doping and nanostructure can effectively improve the performance of carbon materials as negative electrode materials for SIBs and PIBs. PIB has many potential advantages over SIB, such as higher
A new additive (polytetrafluoroethylene, PTFE) to typical sugar precursors for hard carbon (HC) preparation via hydrothermal carbonization has been proposed and investigated. The HC samples obtained from sugars (D-glucose and pectin) with and without PTFE were characterized with X-ray powder diffraction, Raman spectroscopy, scanning and
Next we investigated the structural changes during the battery cycling. For each negative electrode material, a series of static (ex situ) measurements were performed on batteries halted at specific points during sodiation and desodiation of the battery. For the HC900 and HC1600 materials, the batteries were stopped at 0.5 V, 0.1 V, 0.005 V
In summary, the present study uses the synergistic effect of g-C 3 N 4 and rGO to prepare a lithium-ion battery negative electrode material with excellent electrochemical performance and outstanding lithium storage capacity. rGO-g-C 3 N 4 –1 composites have high specific surface area, which exposes more pyridine nitrogen and
Scientific Reports - Compressed composite carbon felt as a negative electrode for a zinc–iron flow battery Skip to main content Thank you for visiting nature .
By investigating hard carbon negative electrode materials carbonized at various temperatures, we aimed to characterize structural changes in C lattice and their correlation with Na ion insertion and adsorption mechanisms during battery cycling.
The invention provides a preparation method of a hard carbon material for a negative electrode of a lithium-ion battery. With polyhydric alcohol as a hard carbon source, the hard...
The results show that heteroatomic doping and nanostructure can effectively improve the performance of carbon materials as negative electrode materials for SIBs and PIBs. PIB has many potential advantages over SIB, such as higher battery voltage, better ion mobility, the use of aluminum as both cathode and negative electrode substrates, low
Here, low-cost raw materials are used for the preparation of a graphite/silicon@carbon composite negative electrode material, which synergizes ball milling, molten salts electrolysis and carbon coating. Silica is in situ electrochemically reduced to silicon on the flaky graphite serving as the conducting substrate during the electrolysis
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
A new additive (polytetrafluoroethylene, PTFE) to typical sugar precursors for hard carbon (HC) preparation via hydrothermal carbonization has been proposed and investigated. The HC samples obtained from sugars (D-glucose and pectin) with and without
Mg-templated hard carbon as an extremely high capacity negative electrode material for Na-ion batteries is successfully synthesized by heating a freeze-dried mixture of magnesium gluconate and glucose.
In summary, the present study uses the synergistic effect of g-C 3 N 4 and rGO to prepare a lithium-ion battery negative electrode material with excellent electrochemical performance and outstanding lithium storage capacity. rGO-g-C 3 N 4 –1 composites have
Mechanochemical synthesis of Si/Cu3Si-based composite as negative electrode materials for lithium ion battery is investigated. Results indicate that CuO is decomposed and alloyed with Si forming
In this paper, we prepared fluffy NCC materials through a simple high-temperature calcination process, characterized them via BET, XRD and SEM, and then we carried out electrochemical tests and battery tests as an additive in
Hard carbon (HC) is a promising negative-electrode material for Na-ion batteries. HC electrochemically stores Na + ions, resulting in a non-stoichiometric chemical composition depending on their nanoscale structure, including the carbon framework, and interstitial pores. Therefore, optimizing these structures for Na storage by altering the
Carbon materials represent one of the most promising candidates for negative electrode materials of sodium‐ion and potassium‐ion batteries (SIBs and PIBs). This review focuses on the research...
In this work, they studied four different hard carbon samples, namely, Carbon A, Carbon B, Carbon 1100 °C, and Carbon 1500 °C. Carbon A and Carbon B are commercially available carbons produced by Kureha Battery Materials Japan Co., Ltd and Faradion Ltd, respectively. Glucose was used as the precursor material to synthesise Carbon 1100 °C and
In recent years, with the continuous development of technologies such as electric vehicles, military equipment, and large-scale energy storage, there is an urgent need to obtain new lithium-ion battery electrode materials with high electrochemical performances [1,2,3].The negative electrode as an important component of lithium-ion batteries seriously effects the
Hard carbon (HC) is a promising negative-electrode material for Na-ion batteries. HC electrochemically stores Na + ions, resulting in a non-stoichiometric chemical composition depending on their nanoscale structure, including the carbon
TL;DR: In this paper, a lithium ion battery silicon carbon composite anode material and a preparation method thereof is described. The preparation method comprises the following steps of: 1) dissolving an organic carbon source in an appropriate amount of solvent, adding a silicon source and a dispersing agent for dispersing suspension uniformly, adding graphitized carbon
Carbon materials represent one of the most promising candidates for negative electrode materials of sodium‐ion and potassium‐ion batteries (SIBs and PIBs). This review focuses on the research...
Hard carbon (HC) is a promising negative-electrode material for Na-ion batteries. HC electrochemically stores Na + ions, resulting in a non-stoichiometric chemical composition depending on their nanoscale structure, including the carbon framework, and interstitial pores.
Mg-templated hard carbon as an extremely high capacity negative electrode material for Na-ion batteries is successfully synthesized by heating a freeze-dried mixture of magnesium gluconate and glucose.
Abstract Carbon materials, including graphite, hard carbon, soft carbon, graphene, and carbon nanotubes, are widely used as high-performance negative electrodes for sodium-ion and potassium-ion bat...
Moreover, the addition of NCC has a low impact on the hydrogen precipitation of the electrode plate in electrochemical tests and can effectively improve the battery’s performance, so it is a promising material that can be used as a negative electrode additive in the battery industry on a large scale.
Here, we investigate HCs from a mixture of sugars (D-glucose and pectin) and polytetrafluoroethylene (PTFE) as an anode material for PIBs with special attention to the final product's yield and electrochemical properties as a negative electrode for potassium-ion batteries. 2. Materials and methods 2.1. Synthesis
The development of graphene-based negative electrodes with high efficiency and long-term recyclability for implementation in real-world SIBs remains a challenge. The working principle of LIBs, SIBs, PIBs, and other alkaline metal-ion batteries, and the ion storage mechanism of carbon materials are very similar.
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