Articles with "na3v2 po4" as a keyword



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Electrolytes toward High‐Voltage Na3V2(PO4)2F3 Positive Electrode Durable against Temperature Variation

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Published in 2020 at "Advanced Energy Materials"

DOI: 10.1002/aenm.202001880

Abstract: High power and energy density, long cyclability, and tolerance for wide temperature (seasonal and daily operational temperature differences) must be considered to construct large‐scale sodium secondary batteries. In this regard, Na3V2(PO4)2F3 (NVPF) has become a… read more here.

Keywords: na3v2 po4; electrode; po4 2f3; voltage ... See more keywords
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Na3V2(PO4)3@NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

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Published in 2020 at "International Journal of Energy Research"

DOI: 10.1002/er.5239

Abstract: Polyaniline‐derived N‐doped carbon‐composited Na3V2(PO4)3 (NVP@NC) are synthesized by a rheological phase reaction followed by calcination. The NVP@NC composite displays improved cycling and rate properties. Its discharge capacity remains 118.7 mAh g−1 at the 400th cycle at 0.3 C.… read more here.

Keywords: na3v2 po4; po4 composite; sodium ion; rate ... See more keywords
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A first-principles investigation of the influence of polyanionic boron doping on the stability and electrochemical behavior of Na3V2(PO4)3

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Published in 2019 at "Journal of Molecular Modeling"

DOI: 10.1007/s00894-019-3971-1

Abstract: Na3V2(PO4)3 (NVP) is one of the most promising candidates for use as cathodes in room-temperature sodium ion batteries owing to its high structural stability and rapid Na+ transportation kinetics. The cationic doping of foreign ions… read more here.

Keywords: electrochemical behavior; boron doping; polyanionic boron; na3v2 po4 ... See more keywords
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Double carbon-embedded Na3V2(PO4)3 as a superior anode for sodium ion batteries

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Published in 2020 at "Journal of Nanoparticle Research"

DOI: 10.1007/s11051-020-04853-3

Abstract: Double carbon-embedded Na3V2(PO4)3 (DC-NVP) nanocomposites were prepared via in situ growth of NVP@C nanoparticles on carbon nanotubes (CNTs). Beneficial of a high electronic conductivity network and structure stability, the DC-NVP nanocomposite as an anode of… read more here.

Keywords: embedded na3v2; double carbon; na3v2 po4; ion ... See more keywords
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Voltage window-dependent electrochemical performance and reaction mechanisms of Na3V2(PO4)3 cathode for high-capacity sodium ion batteries

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Published in 2019 at "Ionics"

DOI: 10.1007/s11581-019-03363-0

Abstract: Na3V2(PO4)3 owns stable three-dimensional open framework and delivers a theoretical capacity of 117.6 mAh/g with a voltage plateau at 3.4 V (vs. Na+/Na). However, the voltage plateau at 1.6 V (vs. Na+/Na) corresponding to the… read more here.

Keywords: po4; mechanisms na3v2; capacity; mah ... See more keywords
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Double-carbon coated Na3V2(PO4)3 as a superior cathode material for Na-ion batteries

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Published in 2019 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.05.224

Abstract: Abstract Na super ionic conductor (NASICON)-type Na3V2(PO4)3 (NVP) has been considered as a potential positive electrode material for sodium ion batteries (NIBs) owing to its high theoretical specific capacity. Nonetheless, the practical application of NVP… read more here.

Keywords: na3v2 po4; material; carbon; po4 ... See more keywords
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High-performance Na3V2(PO4)2F2.5O0.5 cathode: Hybrid reaction mechanism study via ex-situ XRD and sodium storage properties in solid-state batteries

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Published in 2021 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2021.130310

Abstract: Abstract Presently, sodium-vanadium fluorophosphates are highly competitive cathode materials for sodium ion batteries (SIBs) due to the high operating voltage and specific capacity. Herein, self-assembly Na3V2(PO4)2F2.5O0.5 microspheres with uniform polypyrrole (PPy)-coating modification (NVPFO@PPy) are successfully… read more here.

Keywords: na3v2 po4; reaction; cathode; solid state ... See more keywords
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Boosting the rate capability and working lifespan of K/Co co-doped Na3V2(PO4)3/C for sodium ion batteries

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Published in 2021 at "Ceramics International"

DOI: 10.1016/j.ceramint.2021.04.222

Abstract: Abstract Na3V2(PO4)3 (NVP) has been deemed to be a prospective cathode for sodium ion batteries (SIBs) duo to its high structural stability and flat voltage platform. Herein, a series of K/Co co-doped NVP composites with… read more here.

Keywords: ion batteries; na3v2 po4; sodium ion; ion ... See more keywords
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Ration design of porous Mn-doped Na3V2(PO4)3 cathode for high rate and super stable sodium-ion batteries

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Published in 2019 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.10.150

Abstract: Abstract A simple freeze-drying-assisted method is used to prepare various porous Mn-doped Na3V2(PO4)3/C composites. Rietveld refinement and atomic absorption spectroscopy (AAS) are applied to probe the real substitute site of Mn and demonstrate that Mn… read more here.

Keywords: doped na3v2; na3v2 po4; ration design; porous doped ... See more keywords
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Understanding the influence of different carbon matrix on the electrochemical performance of Na3V2(PO4)3 cathode for sodium-ion batteries

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Published in 2019 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2019.02.202

Abstract: Abstract Na-superionic conductor-structured Na3V2(PO4)3 is extensively investigated as a promising cathode material for sodium-ion batteries. Unfortunately, the Na3V2(PO4)3 cathode suffers from low rate capability due to its inherent low electric conductivity. One of the general… read more here.

Keywords: carbon matrix; na3v2 po4; po4; cathode ... See more keywords
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Effect of chitosan-derived nitrogen-doped carbon surface modification on Na3V2(PO4)3 cathode for rechargeable sodium-ion batteries

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Published in 2021 at "Journal of Environmental Chemical Engineering"

DOI: 10.1016/j.jece.2021.106319

Abstract: Abstract Sodium super ionic conductor (NASICON)-type Na3V2(PO4)3 (NVP) has been an impressive and popular cathode candidate for sodium-ion batteries (SIBs). Herein, we report the modification of the NVP surface with nitrogen-doped carbon (NC), derived from… read more here.

Keywords: nitrogen doped; doped carbon; surface; sodium ... See more keywords