Reticular Sn nanoparticle-dispersed PAN-based carbon nanofibers for anode material in rechargeable lithium-ion batteries

Yu, Yunhua; Yang, Qing; Teng, Donghua; Yang, Xiaoping; Ryu, Seung‐Kon

doi:10.1016/j.elecom.2010.06.015

Cited by 133 publications

(104 citation statements)

References 16 publications

Supporting

Mentioning

103

Contrasting

Order By: Relevance

“…A wide variety of polymers, including polyacrylonitrile (PAN) and polyvinylalcohol (PVA), has been employed as precursors for producing CNFs, among which PAN has been the most popular due to its easy processing, high carbon yield and robust mechanical properties of the as-prepared CNF fi lms. [ 8,9 ] The PAN-based CNF fi lms have a capacity of about 300 mAh g −1 when discharged at 50 mA g −1 , which can be augmented to 435 mAh g −1 through the incorporation of pore structures in the fi bers. The latter value is 20% higher than the theoretical capacity of graphite.…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Atomic Structure and Electrochemical Performance of Anodes Made from Electrospun Carbon Nanofiber Films

Zhang

et al. 2013

Advanced Energy Materials

142

147

View full text Add to dashboard Cite

A systematic study is made of the effect of the nitrogen species on the performance of Li‐ion storage and the capacities of carbon‐based anodes in Li‐ion batteries (LIBs). Electrospun carbon nanofiber (CNF) films are fabricated for use as binder‐free electrodes using a polyacrylonitrile precursor. When the CNF films are subjected to carbonization, transformation occurs from an amorphous to a graphitic structure with associated reduction of nitrogen‐containing functional groups. The structural change strongly affects where the Li ions are stored in the CNF electrodes. It is revealed that Li ions can be stored not only between the graphene layers, but also at the defect sites created by nitrogen functionalization. The latter is mainly responsible for the widely reported improved electrochemical performance of LIBs due to N‐doping of carbon materials. An optimized carbonization temperature of 550 °C is identified, which gives rise to a sufficiently high nitrogen content and thus a high capacity of the electrode.

show abstract

Section: Introductionmentioning

confidence: 99%

Correlation Between Atomic Structure and Electrochemical Performance of Anodes Made from Electrospun Carbon Nanofiber Films

Zhang

et al. 2013

Advanced Energy Materials

142

147

View full text Add to dashboard Cite

show abstract

“…Recently, carbon nanofibers are gaining attention as an effective carbon matrix to encapsulate active materials [6][7][8][9][10][11]. Comparing to other matrix materials, carbon nanofibers can not only accommodate the dramatic volumetric expansion of active materials during lithiation/delithiation [12,13], but also maximize the capacity potential of active materials by preventing the nanoparticle pulverization or the loss of electric contact between active substances and the current collector [14]. In addition, the fabrication techniques of carbon nanofibers are typically simple and can be scaled up easily.…”

Section: Introductionmentioning

confidence: 99%

Centrifugally-spun tin-containing carbon nanofibers as anode material for lithium-ion batteries

Jiang

et al. 2014

J Mater Sci

View full text Add to dashboard Cite

Carbon nanofibers, due to their high electric conductivity and excellent mechanical strength, have been studied and applied in areas such as energy storage, tissue engineering, filtration, and catalysis. So far, carbon nanofibers have been mainly produced by electrospinning and subsequent heat treatments. However, the great difficulty of carbon nanofibers to be scaled up through electrospinning confines the productivity and practical application of this extensively investigated material category. Recently, centrifugal spinning has drawn attention due to its high production rate (500 times faster than traditional electrospinning), simple set-up, and ease of scaling-up. Herein, tin-containing carbon nanofibers were prepared by facile centrifugal spinning from tin chloridepolyacrylonitrile precursor solutions and subsequent thermal treatments. Polymer-salt-solvent relations and resultant rheological effects upon solution properties and fiber structures were discussed, and the performance of centrifugally spun tin-containing carbon nanofibers as anode material for lithium-ion batteries was evaluated. An excellent reversible capacity of 607 mAh g -1 was achieved at the initial cycle and a relatively high specific capacity of 430 mAh g -1 was maintained after 100 cycles. It is, therefore, demonstrated that centrifugal-spun tincontaining carbon nanofibers are promising anode material for lithium-ion batteries, and centrifugal spinning, as a nanofiber fabrication alternative to electrospinning, shows great potential in large-scale nanofiber production.

show abstract

“…The carbon matrixes cannot only accommodate the volume change of Sn during charge-discharge process but also provide the electron transport pathways due to the high electronic conductivity of the carbonaceous materials. Various carbon matrixes with different morphologies have been used to prepare Sn/C composites, such as carbon nanotubes [16,17], carbon nanofibers [18], hollow carbon spheres [19,20], and carbon microbeads [21]. All these Sn/C composites show better cycle performance than bare Sn anode material.…”

Section: Introductionmentioning

confidence: 99%

Superior cycle performance of Sn@C/graphene nanocomposite as an anode material for lithium-ion batteries

Liang

Zhu

Lian

et al. 2011

Journal of Solid State Chemistry

140

View full text Add to dashboard Cite

Reticular Sn nanoparticle-dispersed PAN-based carbon nanofibers for anode material in rechargeable lithium-ion batteries

Cited by 133 publications

References 16 publications

Correlation Between Atomic Structure and Electrochemical Performance of Anodes Made from Electrospun Carbon Nanofiber Films

Correlation Between Atomic Structure and Electrochemical Performance of Anodes Made from Electrospun Carbon Nanofiber Films

Centrifugally-spun tin-containing carbon nanofibers as anode material for lithium-ion batteries

Superior cycle performance of Sn@C/graphene nanocomposite as an anode material for lithium-ion batteries

Contact Info

Product

Resources

About