Hierarchical self-assembled structures based on nitrogen-doped carbon nanotubes as advanced negative electrodes for Li-ion batteries and 3D microbatteries

Sharifi, Tiva; Valvo, Mario; Gracia‐Espino, Eduardo; Sandström, Robin; Edström, Kristina; Wågberg, Thomas

doi:10.1016/j.jpowsour.2015.01.036

Cited by 42 publications

(31 citation statements)

References 57 publications

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“…Furthermore, the capacity at 0.1C was rehabilitated to the initial value at the same C-rate after undergoing a C-rate test up to 3C, presumably highlighting the well-preserved structural integrity of 3S. The volumetric capacities of multi-layered 3D CNT anodes exceeded the recently published CNTs (48 mAh·cm −3 [98] and 395 mAh·cm −3 [99]), porous graphite (463 mAh·cm −3 ) [100] and commercial-grade graphitized mesocarbons (301.5 mAh·cm −3 ) [32]. With such excellent electrochemical properties, our proposed multi-layered CNT-based anodes can be envisioned to pave the way for the implementation of carbon nanomaterials to advanced LIBs demanding high volumetric capacity.…”

Section: D Multi-layered Cntsmentioning

confidence: 74%

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Kang

Cha

Patel

et al. 2016

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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.

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Section: D Multi-layered Cntsmentioning

confidence: 74%

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Kang

Cha

Patel

et al. 2016

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“…6b, shows the C 1s graphitization peak at 1226.1 eV with an inset schematic representing the different bonding configurations of nitrogen in the graphitic plane. There are generally at least five different nitrogen bonding types that have been reported which fall into a range of different binding energies [29][30][31][32][33][34] [31], containing carbon nanoparticles, showed a pyridinic state ranging from 396-400.5 eV, a pyrrolic state from 399-402 eV, and a graphitic state from 399-403.5 eV. Deconvolution of the N 1s peak suggests that the carbon network is doped with three nitrogen types (Fig.…”

Section: Changes In Carbon Fiber Propertiesmentioning

confidence: 98%

“…5b, shows the C 1s graphitization peak at 1225.1 eV, along with an inset schematic showing nitrogen incorporation, which is in agreement with the XRD data that indicate formation of the (002) graphitic plane between 20-27°. Several reports have indicated that nitrogen states between 400.5-401.5 eV can be associated as quaternary or graphite-like nitrogen, which is incorporated into the structure of the extended aromatic π -system in carbon nanofiber [29][30][31][32][33][34]. The assignment of chemical groups from XPS spectra can be achieved through peak deconvolution obtained through curve fitting.…”

Section: Changes In Carbon Fiber Propertiesmentioning

confidence: 99%

Nitrogen Doped Carbon Nanofibers Derived from Water-Soluble Precursors

Cremar¹,

Jones²,

Martínez³

et al. 2017

JAN

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Abstract. Nitrogen doped carbon fibers were synthesized from polyvinyl alcohol (PVA), a water soluble precursor. The PVA fine fibers were first developed by centrifugally spinning an aqueous based solution using Forcespinning® technology. The precursor fibers were then exposed to sulfuric acid vapors to partially carbonize and stabilize the fibers for further heat treatment. For nitrogen doping, the fibers were exposed to two different heat treatment routes. One was under a nitrogen atmosphere at 850°C followed by exposure to ammonia gas at 500°C. The second route consisted of heating the treated fibers in pure ammonia gas only, up to 850°C. Both heating schemes resulted in carbon based fibers that showed evidence of nitrogen content as shown by energy-dispersive X-ray spectroscopy. The second route showed an effective doping of the carbon fiber with nitrogen atoms, measured by X-ray photoelectron spectroscopy, which indicated that the nitrogen atoms were fully incorporated into the carbon framework.

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“…Carbon nanotubes (CNTs), due to outstanding electrical, thermal conductivity, unique optical, and mechanical properties, have been widely used in various fields . Especially, preparing multifunctional advanced polymer‐based composites using CNTs as a fine conductive filler has become a research hotspot .…”

Section: Introductionmentioning

confidence: 99%

Highly improved conductivity of polyaniline–carbon nanotubes Composites doped by liquid bromine with a synergistic effect

2017

Polymer Composites

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In order to obtain highly conductive carbon nanotubes (CNTs)–polymer composite materials, we prepared polyaniline wrapped carbon nanotubes composites (CNTs‐PANI) by in situ polymerization, and used three different treated methods to fabricate bromine‐doped compounds. Only with the method of liquid bromine processing could we highly improve the conductivity of composites. When treating by liquid bromine, the conductivity of 10%CNTs‐PANI significantly improved nearly 3 × 106 times, which was already near that of pure CNTs we used. Compared with pure PANI doped by bromine, we found that there was a synergistic effect in CNTs‐PANI composites between bromine and CNTs. Based on Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, and heat treatment experiment, we proposed that the interaction between bromine and CNTs‐PANI had both the doped effect as a promoter and the destructive effect on the electrical conductivity. POLYM. COMPOS., 39:E1034–E1040, 2018. © 2017 Society of Plastics Engineers

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Hierarchical self-assembled structures based on nitrogen-doped carbon nanotubes as advanced negative electrodes for Li-ion batteries and 3D microbatteries

Cited by 42 publications

References 57 publications

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries

Nitrogen Doped Carbon Nanofibers Derived from Water-Soluble Precursors

Highly improved conductivity of polyaniline–carbon nanotubes Composites doped by liquid bromine with a synergistic effect

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