Natural graphite modified with nitrophenyl multilayers as anode materials for lithium ion batteries

Pan, Qinmin; Wang, Hongbo; Jiang, Yinghua

doi:10.1039/b612422d

Cited by 74 publications

(56 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…69 Beyond the modulation of the surface properties (e.g. wettability enhancement, better homogeneity of cathode film) the grafting at the surface of Li-ion battery material also may play a key role on the nature or stability of the passive layer as commonly reported following modification of graphite anode with nitrophenyl groups 70 or with the utilization of additive in the electrolyte. 71…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Delaporte

Péréa

Lebègue

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The grafting of benzene-trifluoromethylsulfonimide groups on LiFePO4/C was achieved by spontaneous reduction of in situ generated diazonium ions of the corresponding 4-amino-benzene-trifluoromethylsulfonimide. The diazotization of 4-amino-benzene-trifluoromethylsulfonimide was a slow process that required a high concentration of precursors to promote the spontaneous grafting reaction. Contact angle measurements showed a hydrophilic surface was produced after the reaction that is consistent with grafting of benzene-trifluoromethylsulfonimide groups. Elemental analysis data revealed a 2.1 wt % loading of grafted molecules on the LiFePO4/C powder. Chemical oxidation of the cathode material during the grafting reaction was detected by X-ray diffraction and quantified by inductively coupled plasma atomic emission spectrometry. Surface modification improves the wettability of the cathode material, and better discharge capacities were obtained for modified electrodes at high C-rate. In addition, electrochemical impedance spectroscopy showed the resistance of the modified cathode was lower than that of the bare LiFePO4/C film electrode. Moreover, the modified cathode displayed superior capacity retention after 200 cycles of charge/discharge at 1 C.

show abstract

Section: Electrochemical Measurementsmentioning

confidence: 99%

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Delaporte

Péréa

Lebègue

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…[223,224] While these effects were demonstrated with graphite, similar functionalization of ordered porous carbons should produce the corresponding effects.…”

mentioning

confidence: 98%

Functionalization of Porous Carbon Materials with Designed Pore Architecture

2009

View full text Add to dashboard Cite

Recent progress in syntheses of porous carbons with designed pore architecture has rejuvenated the field of carbon chemistry and promises to provide new advanced materials. In order to reap the full benefit of designer carbons, it is necessary to develop chemistries for functionalizing the porous carbon surfaces. This Review examines methods of functionalizing porous carbon through direct incorporation of heteroatoms in the carbon synthesis, surface oxidation and activation, halogenation, sulfonation, grafting, attachment of nanoparticles and surface coating with polymers. Methods of characterizing the functionalized carbon materials and applications that benefit from functionalized nanoporous carbons with designed architecture are also highlighted.

show abstract

“…It is important to note that the low CE during the first cycle is not limited to 3D structures; that is, any nanostructured materials are susceptible to the irreversible capacity occurring in the first cycle. To solve the problem associated with high irreversible capacity during the first cycle, four main strategies have been implemented [72]: (1) oxidation of the graphite prismatic surface [73,74]; (2) deposition of inorganic materials and particles on the graphite particle's surface [75][76][77]; (3) the modification of the surface of graphite anode [78][79][80][81]; and (4) incorporation of carbonaceous coatings [82][83][84]. Those modified electrodes have shown high CE in the first cycle (up to 95%).…”

Section: Literature Surveymentioning

confidence: 99%

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Kang

Cha

Patel

et al. 2016

View full text Add to dashboard Cite

Carbon nanostructural materials have gained the spotlight as promising anode materials for energy storage; they exhibit unique physico-chemical properties such as large surface area, short Li + ion diffusion length, and high electrical conductivity, in addition to their long-term stability. However, carbon-nanostructured materials have issues with low areal and volumetric densities for the practical applications in electric vehicles, portable electronics, and power grid systems, which demand higher energy and power densities. One approach to overcoming these issues is to design and apply a three-dimensional (3D) electrode accommodating a larger loading amount of active anode materials while facilitating Li + ion diffusion. Furthermore, 3D nanocarbon frameworks can impart a conducting pathway and structural buffer to high-capacity non-carbon nanomaterials, which results in enhanced Li + ion storage capacity. In this paper, we review our recent progress on the design and fabrication of 3D carbon nanostructures, their performance in Li-ion batteries (LIBs), and their implementation into large-scale, lightweight, and flexible LIBs.

show abstract

Natural graphite modified with nitrophenyl multilayers as anode materials for lithium ion batteries

Cited by 74 publications

References 40 publications

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Functionalization of Porous Carbon Materials with Designed Pore Architecture

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Contact Info

Product

Resources

About

Natural graphite modified with nitrophenyl multilayers as anode materials for lithium ion batteries

Cited by 74 publications

References 40 publications

Increasing the Affinity Between Carbon-Coated LiFePO4/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Increasing the Affinity Between Carbon-Coated LiFePO4/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Functionalization of Porous Carbon Materials with Designed Pore Architecture

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Contact Info

Product

Resources

About

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety

Increasing the Affinity Between Carbon-Coated LiFePO₄/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety