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The study focused on the synthesis of hard carbon, a highly porous material that serves as the negative electrode of rechargeable batteries, through the use of magnesium oxide (MgO) as an inorganic template of nano-sized pores inside hard carbon.
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.
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 batteries (SIBs and PIBs).
Graphite ineffectiveness in sodium storage has induced extensive research on non-graphitic carbons as high-performance active materials for negative electrodes of Na-ion batteries.
Before addressing the solvent co-intercalation issue in graphite, disordered carbons (e.g., soft and hard carbons) were the first candidates tested as the anode or negative electrode in LIBs. Those efforts indeed resulted in the commercialization of the 1 st generation LIBs by Sony with Coke-derived soft carbon (SC) as the negative electrode .
As negative electrode material for sodium-ion batteries, scientists have tried various materials like Alloys, transition metal di-chalcogenides and hard carbon-based materials. Sn (tin), Sb (antimony) , and P (phosphorus) are mostly studied elements in the category of alloys. Phosphorus has the highest theoretical capacity (2596 mAhg −1) .
The study presents a hybrid hard-carbon/nanocrystalline-Bi2S3 material applicable for negative electrodes in sodium-ion batteries. Through a series of comprehensive …
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 …
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 …
Aluminum-based negative electrodes could enable high-energy-density batteries, but their charge storage performance is limited. Here, the authors show that dense …
Here we propose a method to synthesize sustainable high-quality nanotube-like pyrolytic carbon using waste pyrolysis gas from the decomposition of waste epoxy resin as …
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 batteries (SIBs and PIBs).
Carbon materials, celebrated for their application as negative electrode materials in alkali-metal ion batteries, occupy a prominent stance within this spectrum. …
Abstract Sodium-ion batteries have been emerging as attractive technologies for large-scale electrical energy storage and conversion, owing to the natural abundance and low cost of sodium resources. However, 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 …
The volumetric capacity of typical Na-ion battery (NIB) negative electrodes like hard carbon is limited to less than 450 mAh cm −3.Alloy-based negative electrodes such as …
The study presents a hybrid hard-carbon/nanocrystalline-Bi2S3 material applicable for negative electrodes in sodium-ion batteries. Through a series of comprehensive analyzes, including electrochemical measurements, …
We developed energy effective synthesis method, pre-treatments, and post-treatment for making it easy to commercialize hard carbon material for Na-ion batteries. We …
For nearly two decades, different types of graphitized carbons have been used as the negative electrode in secondary lithium-ion batteries for modern-day energy storage. 1 …
As negative electrode material for sodium-ion batteries, scientists have tried various materials like Alloys, transition metal di-chalcogenides and hard carbon-based …
The high capacity (3860 mA h g −1 or 2061 mA h cm −3) and lower potential of reduction of −3.04 V vs primary reference electrode (standard hydrogen electrode: SHE) make …
As safety is one of the major concerns when developing new types of batteries, ... the different types of negative electrode materials highlighted in many recent reports will be …
No new data were created or analysed in this study. Article metrics. ... Togonon J J H, Chiang P-C, Lin H-J, Tsai W-C and Yen H-J 2021 Pure carbon-based electrodes for …
Potential vs. capacity profile for the first cycle of hard carbon prepared by pyrolysis of sugar when tested against sodium metal counter electrodes at C/10 in 1M NaClO …
The study focused on the synthesis of hard carbon, a highly porous material that serves as the negative electrode of rechargeable batteries, through the use of magnesium …
The capacity of this newly developed hard carbon electrode material is certainly remarkable, and greatly surpasses that of graphite (372 mAh/g), which is currently …