Preparation of synthetic graphite from bituminous coal as anode materials for high performance lithium-ion batteries

Xing, Baolin; Zhang, Chuantao; Cao, Yijun; Huang, Guangxu; Liu, Quanrun; Chen, Zhengfei; Yi, Guiyun; Chen, Lunjian; Yu, Jianglong

doi:10.1016/j.fuproc.2017.12.018

Cited by 193 publications

(99 citation statements)

References 52 publications

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“…Some scholars have extracted them to prepare graphene quantum dots . After high‐temperature treatment, coal can converse to artificial graphite which is widely used in the preparation of carbon nanomaterials . Compared with other carbon sources, coal is an inexpensive and abundant raw material and has broad prospects for the preparation of graphene .…”

Section: Introductionmentioning

confidence: 99%

Effects of Minerals in Anthracite on the Formation of Coal‐Based Graphene

et al. 2019

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The minerals in raw anthracite significantly limit the preparation of coal‐based graphene. Raw and demineralized anthracites were graphitized and coal‐based graphene was prepared by improved Hummers’ oxidation‐reduction method. The morphologies, crystal structures and spectroscopic characteristics of the products in various stages were characterized by scanning electron microscopy, transmission electron microscopy, X‐ray diffraction, Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy and Raman spectroscopy. The results show that demineralized or not, anthracite can be used to prepare graphene, but the minerals in anthracite physically inhibit the directional development of graphene sheets. And the residual high temperature conversion products of the minerals embedded between graphene sheets will lead to multiple irregular pore defects on the surface of graphene, which will have strongly unfavorable effects on the properties of coal‐based graphene materials. Demineralization of raw anthracite can reduce the defective pores and oxygen‐containing functional groups on the surface of coal‐based graphene and improves its morphology and properties.

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Section: Introductionmentioning

confidence: 99%

Effects of Minerals in Anthracite on the Formation of Coal‐Based Graphene

et al. 2019

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“…Carbon-based nanomaterials have received much attention and have been vigorously studied by many research groups for LIB applications because of their natural abundance, eco-friendliness and electrical conductivity with high stability. [1][2][3] Graphite is one of the important negative electrode materials in commercially available LIBs, but it is inadequate to full the energy demands in next-generation energy storage devices due to its low theoretical capacity. 4,5 Additionally, graphite has some safety issues because its operation potential is very close to that of lithium metal and it is very reactive toward certain electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Synergic effects of the decoration of nickel oxide nanoparticles on silicon for enhanced electrochemical performance in LIBs

et al. 2020

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“…Graphite as a negative electrode material is the longest and most commercialized anode material used due to its wide range of raw materials and low cost, stable structure and excellent capacity . However, the layered structure of graphite causes lithium ions from the edge to embed between layers, creating a single lithium ion diffusion path and low lithium ion diffusion dynamics between the graphite layers and resulting in poor rate performance . The volume expansion caused by the lithium graphite intercalation compound (Li‐GIC) during the charging‐discharging process of the negative electrode and the stress concentration caused by Li intercalation all lead to the fracture and degradation of graphite, resulting in the attenuation of reversible capacity .…”

Section: Introductionmentioning

confidence: 99%

Effect of Microcracks on Graphite Anode Materials for Lithium‐Ion Batteries

Gao

et al. 2020

ChemistrySelect

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Modified graphite with microcracks was obtained by a combination of microwave heating and KOH activation. KOH enhanced the degree of order of the graphite, and K + increased the spacing of the graphite layer. Microwave heating caused microcracks on graphite and promoted doping of K + into the graphite. The microcracks could increase the contact area of electrode materials and electrolytes and decrease diffusion length. Furthermore, the uniform microcracks dis-persed the pressure of the electrode wetted by the electrolyte, relieved stress during lithium removal and increased the degree of order of the graphite. The modified graphite has a capacity of 449 mAh g À 1 at 0.1 C, 380 mAh g À 1 at 0.25 C and 367 mAh g À 1 at 0.5 C. In addition, the capacity retention rate was 96.1% after one hundred cycles at 0.25 C, and the average coulombic efficiency was 99.4%.[a] J.

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Preparation of synthetic graphite from bituminous coal as anode materials for high performance lithium-ion batteries

Cited by 193 publications

References 52 publications

Effects of Minerals in Anthracite on the Formation of Coal‐Based Graphene

Effects of Minerals in Anthracite on the Formation of Coal‐Based Graphene

Synergic effects of the decoration of nickel oxide nanoparticles on silicon for enhanced electrochemical performance in LIBs

Effect of Microcracks on Graphite Anode Materials for Lithium‐Ion Batteries

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