Effect of pyrolysis temperature on carbon obtained from green tea biomass for superior lithium ion battery anodes

Han, Sang-Wook; Jung, Dong‐Won; Jeong, Jae−Hun; Oh, Eun‐Suok

doi:10.1016/j.cej.2014.06.021

Cited by 162 publications

(66 citation statements)

References 32 publications

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“…Sample BDC-1100 has more fragments and takes on a smaller particle size than BDC-700 and BDC-900. This is because that carbon pyrolyzed at a higher temperature contains a larger amount of graphitic domains, which may be more easily crushed during the grinding process [21]. This result also can be supported by the XRD and Raman results.…”

Section: Resultssupporting

confidence: 78%

“…In recent studies, carbonaceous anode materials from biomass source, such as spongy pomelo peels [21], rice husk [22,23,24], rice straw [25], sugar cane bagasse [26], coffee beans [27], coconut shells [28], peanut shells [29], have become more and more attractive for their abundance, low cost, easy accessibility and environmental friendliness compared with other carbonaceous precursors. Given this, the application of biomass has received much attention in energy storage field.…”

Section: Introductionmentioning

confidence: 99%

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Bean-dreg-derived carbon materials used as superior anode material for lithium-ion batteries

Xiang

Zhou

et al. 2016

Electrochimica Acta

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-dreg-derived carbon materials used as superior anode material for lithium-ion batteries, Electrochimica Acta http://dx.doi.org/10.1016/j.electacta. 2016.10.202 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 3. The KOH-activated sample demonstrated enhanced electrochemical performance due to its high surface area and abundant mesoporous structure. Bean-dreg-derived carbon materials used as superior anode material for lithium-ion batteries AbstractThe structures of modified carbons from bean dregs were regulated via graphitization treatment and chemical activation. The microstructure and electrochemical performance were studied using X-ray diffraction, Raman spectrometer, SEM and TEM techniques. The electrochemical performance was investigated using electrochemical methods. After heat-treatment at 2800 O C, the obtained BDC-2800 possessed a high degree of graphitization and showed an outstanding cycling performance, delivering capacity decay from 423 to 396 mAh g -1 at 0.1 C after 100 cycles. The chemical-treated carbons also demonstrated enhanced electrochemical performance, especially for the KOH-treated sample. The BDC-K displayed superior specific charge capacity of 801 mAh g -1 at 0.1 C, and showed an impressive rate capability of 643 mAh g -1 at 1 C. In addition, this sample delivered capacity retention of 94%after 500 cycles at 1 C. This good electrochemical performance was mainly due to its high surface area and abundant mesoporous structure.

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Section: Resultssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Bean-dreg-derived carbon materials used as superior anode material for lithium-ion batteries

Xiang

Zhou

et al. 2016

Electrochimica Acta

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“…The specific charge capacity of Fe@AgNPs-AETrGO anode is at 2185 mAh g −1 , which is much higher than that of rGO and Fe@AgNPs. This indicates that the Fe@AgNPs-AETrGO composite significantly reduced the diffusion resistance of the lithium ions in the LiPF 6 electrolyte and increased the specific capacities and conductivity of the electrode [48,49]. The presence of Fe@AgNPs can increase the layer gap of the rGO, making high Li-ion adsorption and reducing diffusion resistance of lithium ion.…”

Section: Electrochemical Performance Fe@agnps-aetrgo In Libmentioning

confidence: 87%

Fe@Ag nanoparticles decorated reduced graphene oxide as ultrahigh capacity anode material for lithium-ion battery

Atar

Eren

Yola

et al. 2015

Ionics

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In the present study, we report the synthesis of Fe@Ag nanoparticles/2-aminoethanethiol functionalized reduced graphene oxide (rGO) composite (Fe@AuNPs-AETrGO) and its application as an improved anode material for lithium-ion batteries (LIBs). The structure of the Fe@AgNPs-AETrGO composite was characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The electrochemical performance was investigated at different charge/discharge current rates by using CR2032 coin-type cells and cyclic voltammetry (CV). It was found that the spherical Fe@AuNPs were highly dispersed on the rGO sheets. Moreover, the Fe@AuNPs-AETrGO composite showed high specific gravimetric capacity of about 1500 mAh g −1 and long-term cycle stability.

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“…Recently, many researches on hard carbon anodes have concentrated on various biomass materials due to their low-cost and environment-friendly advantages, for example, sucrose [7,8], rice husk [9], peanut shell [10], coconut shells [11] and green tea [12], but such hard carbon anodes all exhibit relatively small first CE lower than 50% and little work has been conducted to investigate the long-term cycle performances of hard carbon anodes. Lignin as second most abundant natural polymer after cellulose comprises of a three-dimensional cross-linked structure through ether bonds or carbon-carbon linkages between the three phenyl propane monomers, i.e.…”

Section: Introductionmentioning

confidence: 99%

Influence of H2 reduction on lignin-based hard carbon performance in lithium ion batteries

Chang

Wang

2015

Electrochimica Acta

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Effect of pyrolysis temperature on carbon obtained from green tea biomass for superior lithium ion battery anodes

Cited by 162 publications

References 32 publications

Bean-dreg-derived carbon materials used as superior anode material for lithium-ion batteries

Bean-dreg-derived carbon materials used as superior anode material for lithium-ion batteries

Fe@Ag nanoparticles decorated reduced graphene oxide as ultrahigh capacity anode material for lithium-ion battery

Influence of H2 reduction on lignin-based hard carbon performance in lithium ion batteries

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