Rational construction of Na3V2(PO4)3 nanoparticles encapsulated in 3D honeycomb carbon network as a cathode for sodium-ion batteries

Chaozhen Zhang; Donglei Guo; Jinwen Qin; Baoguang Mao; Minhua Cao

doi:10.1016/j.matlet.2017.02.121

Rational construction of Na₃V₂(PO₄)₃ nanoparticles encapsulated in 3D honeycomb carbon network as a cathode for sodium-ion batteries

Chaozhen Zhang, Donglei Guo, Jinwen Qin, Baoguang Mao, Minhua Cao^*

^*Corresponding author for this work

Ministry of Education in China

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Developing suitable electrode materials with large-sized tunnel structure and fast ion diffusion pathways still is a huge challenge for sodium-ion batteries due to the larger ionic radius of sodium. Na₃V₂(PO₄)₃ nanoparticles encapsulated in three-dimensional (3D) honeycomb carbon network (3DHN-NVP) were designed and prepared via a novel sol-gel template method. When evaluated as a promising cathode for rechargeable sodium-ion batteries, the resultant 3DHN-NVP displays better electrochemical performance in terms of cycling stability, and rate capability compared to pristine NVP. This good performance can be ascribed to the 3D honeycomb carbon network in enhancing the electronic conductivity, shortening path lengths for electron transport, and alleviating the volume changes of electrode materials.

Original language	English
Pages (from-to)	205-208
Number of pages	4
Journal	Materials Letters
Volume	195
DOIs	https://doi.org/10.1016/j.matlet.2017.02.121
Publication status	Published - 15 May 2017
Externally published	Yes

Keywords

Composite materials
NaV(PO)
Porous materials
Sodium-ion batteries

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10.1016/j.matlet.2017.02.121

Cite this

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title = "Rational construction of Na3V2(PO4)3 nanoparticles encapsulated in 3D honeycomb carbon network as a cathode for sodium-ion batteries",

abstract = "Developing suitable electrode materials with large-sized tunnel structure and fast ion diffusion pathways still is a huge challenge for sodium-ion batteries due to the larger ionic radius of sodium. Na3V2(PO4)3 nanoparticles encapsulated in three-dimensional (3D) honeycomb carbon network (3DHN-NVP) were designed and prepared via a novel sol-gel template method. When evaluated as a promising cathode for rechargeable sodium-ion batteries, the resultant 3DHN-NVP displays better electrochemical performance in terms of cycling stability, and rate capability compared to pristine NVP. This good performance can be ascribed to the 3D honeycomb carbon network in enhancing the electronic conductivity, shortening path lengths for electron transport, and alleviating the volume changes of electrode materials.",

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AU - Zhang, Chaozhen

AU - Guo, Donglei

AU - Qin, Jinwen

AU - Mao, Baoguang

AU - Cao, Minhua

PY - 2017/5/15

Y1 - 2017/5/15

N2 - Developing suitable electrode materials with large-sized tunnel structure and fast ion diffusion pathways still is a huge challenge for sodium-ion batteries due to the larger ionic radius of sodium. Na3V2(PO4)3 nanoparticles encapsulated in three-dimensional (3D) honeycomb carbon network (3DHN-NVP) were designed and prepared via a novel sol-gel template method. When evaluated as a promising cathode for rechargeable sodium-ion batteries, the resultant 3DHN-NVP displays better electrochemical performance in terms of cycling stability, and rate capability compared to pristine NVP. This good performance can be ascribed to the 3D honeycomb carbon network in enhancing the electronic conductivity, shortening path lengths for electron transport, and alleviating the volume changes of electrode materials.

AB - Developing suitable electrode materials with large-sized tunnel structure and fast ion diffusion pathways still is a huge challenge for sodium-ion batteries due to the larger ionic radius of sodium. Na3V2(PO4)3 nanoparticles encapsulated in three-dimensional (3D) honeycomb carbon network (3DHN-NVP) were designed and prepared via a novel sol-gel template method. When evaluated as a promising cathode for rechargeable sodium-ion batteries, the resultant 3DHN-NVP displays better electrochemical performance in terms of cycling stability, and rate capability compared to pristine NVP. This good performance can be ascribed to the 3D honeycomb carbon network in enhancing the electronic conductivity, shortening path lengths for electron transport, and alleviating the volume changes of electrode materials.

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KW - Sodium-ion batteries

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Rational construction of Na₃V₂(PO₄)₃ nanoparticles encapsulated in 3D honeycomb carbon network as a cathode for sodium-ion batteries

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Keywords

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