Facile method to improve initial reversible capacity of hollow carbon nanofiber anodes

Lee, Byoung-Sun; Yang, Ho‐Sung; Jung, Heechul; Mah, Sang Kook; Kwon, Seunguk; Park, Jin-Hwan; Lee, Kang Hee; Yu, Woong‐Ryeol; Doo, Seok‐Gwang

doi:10.1016/j.eurpolymj.2015.07.041

Cited by 18 publications

(9 citation statements)

References 33 publications

(50 reference statements)

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“…Among the derivative techniques of electrospinning, coaxial electrospinning is indeed the most widely employed for the production of hollow nanofibers of polymers [ 46 , 63 , 64 ], ceramics [ 47 , 65 ], metals [ 26 , 45 , 47 , 66 ], and carbon [ 67 , 68 , 69 ]. In this technique, two different solutions are first fed into a spinneret comprised of two coaxial capillaries, to form a core (inner layer)-sheath (outer layer)-nanofiber structure.…”

Section: Electrospinning-based Fabrication Methods Of Ceramic Hollmentioning

confidence: 99%

The Electrospun Ceramic Hollow Nanofibers

et al. 2017

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Hollow nanofibers are largely gaining interest from the scientific community for diverse applications in the fields of sensing, energy, health, and environment. The main reasons are: their extensive surface area that increases the possibilities of engineering, their larger accessible active area, their porosity, and their sensitivity. In particular, semiconductor ceramic hollow nanofibers show greater space charge modulation depth, higher electronic transport properties, and shorter ion or electron diffusion length (e.g., for an enhanced charging–discharging rate). In this review, we discuss and introduce the latest developments of ceramic hollow nanofiber materials in terms of synthesis approaches. Particularly, electrospinning derivatives will be highlighted. The electrospun ceramic hollow nanofibers will be reviewed with respect to their most widely studied components, i.e., metal oxides. These nanostructures have been mainly suggested for energy and environmental remediation. Despite the various advantages of such one dimensional (1D) nanostructures, their fabrication strategies need to be improved to increase their practical use. The domain of nanofabrication is still advancing, and its predictable shortcomings and bottlenecks must be identified and addressed. Inconsistency of the hollow nanostructure with regard to their composition and dimensions could be one of such challenges. Moreover, their poor scalability hinders their wide applicability for commercialization and industrial use.

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Section: Electrospinning-based Fabrication Methods Of Ceramic Hollmentioning

confidence: 99%

The Electrospun Ceramic Hollow Nanofibers

et al. 2017

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“…The use of an acrylonitrile copolymer (e.g., styrene- co -acrylonitrile (SAN)) is beneficial when forming a stable hollow structure, owing to its compatibility with PAN precursor and thermal degradability. Well-defined hollow CNFs and porous hollow CNFs were fabricated using the SAN core–PAN shell solution combination (see Figure 5 c,d) [ 40 , 54 , 60 ]. The microstructure and electrochemical performances of the hollow CNFs were similar to those of the solid CNFs, while those of the porous hollow structures were analogous to those of the porous CNFs.…”

Section: Insertion/extraction (Or Intercalation/deintercalation)-bmentioning

confidence: 99%

“… Coaxially electrospun carbon nanofiber anode materials. Schematic processing diagrams and resulting anode materials: ( a ) carbon/carbon core–shell nanofibers (reprinted with permission from [ 59 ]; copyright 2011 Elsevier), ( b ) hollow carbon nanosphere decorated hollow carbon nanofibers (reprinted with permission from [ 38 ]; copyright 2012 Royal Society of Chemistry), ( c ) hollow carbon nanofibers carbonized at various carbonization temperatures (reprinted with permission from [ 60 ] and [ 40 ]; copyright 2015 and 2012 Elsevier), and ( d ) mesoporous hollow carbon nanofibers (eprinted with permission from [ 54 ]; copyright 2012 American Chemical Society). …”

Section: Figurementioning

confidence: 99%

A Review of Recent Advancements in Electrospun Anode Materials to Improve Rechargeable Lithium Battery Performance

Lee

2020

Polymers

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Although lithium-ion batteries have already had a considerable impact on making our lives smarter, healthier, and cleaner by powering smartphones, wearable devices, and electric vehicles, demands for significant improvement in battery performance have grown with the continuous development of electronic devices. Developing novel anode materials offers one of the most promising routes to meet these demands and to resolve issues present in existing graphite anodes, such as a low theoretical capacity and poor rate capabilities. Significant improvements over current commercial batteries have been identified using the electrospinning process, owing to a simple processing technique and a wide variety of electrospinnable materials. It is important to understand previous work on nanofiber anode materials to establish strategies that encourage the implementation of current technological developments into commercial lithium-ion battery production, and to advance the design of novel nanofiber anode materials that will be used in the next-generation of batteries. This review identifies previous research into electrospun nanofiber anode materials based on the type of electrochemical reactions present and provides insights that can be used to improve conventional lithium-ion battery performances and to pioneer novel manufacturing routes that can successfully produce the next generation of batteries.

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“…However, LIBs with electrospun CNFs as the anode exhibited relatively low specific capacity and rate capability [66,67]. Therefore, flexible highly porous CNFs (HPCNFs) [68] and hollow CNFs (HCNFs) [69] were prepared by the electrospinning method. The HPCNFs delivered a reversible capacity as high as 1780 mAh/g after 40 cycles at current densities of 50 mA/g [68].…”

Section: Applicationsmentioning

confidence: 99%

“…The HPCNFs delivered a reversible capacity as high as 1780 mAh/g after 40 cycles at current densities of 50 mA/g [68]. Controlling the mesopores in HCNFs is an effective means to improve the electrochemical performance of HCNFs [69]. HPCNFs and HCNFs with excellent electrochemical and mechanical properties result from the novel porous structure, which can provide the good access of the electrolyte to the electrode surface.…”

Section: Applicationsmentioning

confidence: 99%

Electrospinning of Nanofibers for Energy Applications

et al. 2016

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With global concerns about the shortage of fossil fuels and environmental issues, the development of efficient and clean energy storage devices has been drastically accelerated. Nanofibers are used widely for energy storage devices due to their high surface areas and porosities. Electrospinning is a versatile and efficient fabrication method for nanofibers. In this review, we mainly focus on the application of electrospun nanofibers on energy storage, such as lithium batteries, fuel cells, dye-sensitized solar cells and supercapacitors. The structure and properties of nanofibers are also summarized systematically. The special morphology of nanofibers prepared by electrospinning is significant to the functional materials for energy storage.

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Facile method to improve initial reversible capacity of hollow carbon nanofiber anodes

Cited by 18 publications

References 33 publications

The Electrospun Ceramic Hollow Nanofibers

The Electrospun Ceramic Hollow Nanofibers

A Review of Recent Advancements in Electrospun Anode Materials to Improve Rechargeable Lithium Battery Performance

Electrospinning of Nanofibers for Energy Applications

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