Outstanding electrochemical performance of N/S co-doped carbon/Na3V2(PO4)3 hybrid as the cathode of a sodium-ion battery

Huang, Xiaobing; Yi, Xin; Qin, Yang; Guo, Zihua; Ren, Yurong; Zeng, Xianguang

doi:10.1016/j.ceramint.2020.07.303

Cited by 33 publications

(15 citation statements)

References 48 publications

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“…Heteroatom doping can increase not just the diffusion of Na + but also the electronic conductivity of the carbon layer. Huang et al 23 used the typical sol−gel method to successfully prepare N and S codoped NVP−C−NS composite materials, which exhibited wonderful rate capacity and cycle capacity. The discharge capacity of this material is 115.7 and 98.2 mAh g −1 at the current density of 50 and 1000 mA g −1 , respectively, and the capacity retention can be 83.4% after being cycled 500 times at 200 mA g −1 .…”

Section: Introductionmentioning

confidence: 99%

N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

Ding

Tao

et al. 2022

Energy Fuels

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Sodium super ion conductor (NASICON)-type Na3V2(PO4)3 (NVP) has been seen as an extremely potential cathode material in sodium-ion batteries (SIBs) because it owns many prominent merits, like an open three-dimensional channel, high-voltage platform, structural stability, etc. Nevertheless, NVP is difficult to obtain excellent electrochemical performance at high rates with the defect of low electronic conductivity, which leads to the restriction of practical application. In this paper, a nitrogen-doped carbon layer-coated Na3V2(PO4)3 composite material (NVP/NC) was synthesized by a simple sol–gel method using urea as a nitrogen source. The further test proved that NVP/NC has a better rate performance compared to NVP/C. The initial reversible capacity of NVP/NC can reach 109.18 mAh g–1 at 1 C, and the discharge specific capacity can reach 88.3 mAh g–1, even when the ultrahigh current density is 50 C. In addition, NVP/NC has excellent long cycle stability (the capacity retention rate reaches 72.89% at 50 C after 8000 cycles, and the capacity reduction rate per revolution is only about 0.0034%). Because the N-doped carbon layer provides a surface channel for electron transmission of NVP, the electronic conductivity is greatly enhanced, making NVP/NC a better composite material for SIBs. Hence, this work offers a practical process to solve the poor electronic conductivity issue of NVP.

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Section: Introductionmentioning

confidence: 99%

N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

Ding

Tao

et al. 2022

Energy Fuels

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“…Compared with the single atom doped carbon layer, the double atom doped carbon layer can generate more active sites, enhance the diffusion of sodium ions and improve the battery performance. 42,43 Huang et al 44 successfully prepared nitrogen-sulfur co-doped carbon Na 3 V 2 (PO 4 ) 3 (NVP-C-NS) via a simple sol-gel method. Aer 500 cycles of NVP-C-NS at 200 A g À1 , the discharge capacity of NVP-C-NS is 74.2 mA h g À1 , and the capacity retention rate reached 83.4%.…”

Section: Introductionmentioning

confidence: 99%

Realizing outstanding electrochemical performance with Na₃V₂(PO₄)₂F₃ modified with an ionic liquid for sodium-ion batteries

et al. 2022

RSC Adv.

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“…The dualelement doped carbon layer can not only produce more active sites than single-element doping, but it also generates synergistic effects. Huang et al 25 fabricated a nitrogen−sulfur codoped carbon layer Na 3 V 2 (PO 4 ) 3 using thiourea, which exhibited good cycling stability (83.4% capacity retention after 500 cycles at 200 mA g −1 ). On the other hand, boron-doped carbon layers have also been used for material modification.…”

Section: ■ Introductionmentioning

confidence: 99%

Ionic Liquid–Acrylic Acid Copolymer Derived Nitrogen–Boron Codoped Carbon-Covered Na₃V₂(PO₄)₂F₃ as Cathode Material of High-Performance Sodium-Ion Batteries

et al. 2022

Langmuir

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In this study, a nitrogen–boron codoped carbon layer, Na3V2(PO4)2F3 sample, obtained by using an ionic liquid–acrylic acid copolymer as the nitrogen–boron source was used as the cathode material for sodium-ion batteries. The optimized and modified nitrogen and boron codoped carbon layer, Na3V2(PO4)2F3 (denoted as NVPF-PCNB-20), illustrated better rate capability and cycling performance. The discharge capacities of NVPF-PCNB-20 at 0.5C and 10C were 109 and 90 mAh g–1, respectively, and the capacity retention rate was 93.2% after 100 cycles at 0.5C and 92.8% after 750 cycles at 10C. Through in situ X-ray diffraction analysis of NVPF-PCNB-20, the results show that the modified Na3V2(PO4)2F3 has excellent cycle reversibility. The scanning electron microscopy and transmission electron microscopy images reveal that NVPF-PCNB-20 particles were finer and covered by a uniform coating. The results show that the ionic liquid–acrylic acid copolymer not only make the material dispersion more uniform but also enhance the electronic conductivity and sodium storage performance of Na3V2(PO4)3F3 effectively. This study may provide an effective way to synthesize nitrogen and boron codoped carbon-coated Na3V2(PO4)2F3 with excellent electrochemical performance.

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Outstanding electrochemical performance of N/S co-doped carbon/Na3V2(PO4)3 hybrid as the cathode of a sodium-ion battery

Cited by 33 publications

References 48 publications

N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

Realizing outstanding electrochemical performance with Na₃V₂(PO₄)₂F₃ modified with an ionic liquid for sodium-ion batteries

Ionic Liquid–Acrylic Acid Copolymer Derived Nitrogen–Boron Codoped Carbon-Covered Na₃V₂(PO₄)₂F₃ as Cathode Material of High-Performance Sodium-Ion Batteries

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Outstanding electrochemical performance of N/S co-doped carbon/Na3V2(PO4)3 hybrid as the cathode of a sodium-ion battery

Cited by 33 publications

References 48 publications

N-Doped Carbon-Layer-Modified Na3V2(PO4)3 as a High-Performance Cathode Material for Sodium-Ion Batteries

N-Doped Carbon-Layer-Modified Na3V2(PO4)3 as a High-Performance Cathode Material for Sodium-Ion Batteries

Realizing outstanding electrochemical performance with Na3V2(PO4)2F3 modified with an ionic liquid for sodium-ion batteries

Ionic Liquid–Acrylic Acid Copolymer Derived Nitrogen–Boron Codoped Carbon-Covered Na3V2(PO4)2F3 as Cathode Material of High-Performance Sodium-Ion Batteries

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N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

N-Doped Carbon-Layer-Modified Na₃V₂(PO₄)₃ as a High-Performance Cathode Material for Sodium-Ion Batteries

Realizing outstanding electrochemical performance with Na₃V₂(PO₄)₂F₃ modified with an ionic liquid for sodium-ion batteries

Ionic Liquid–Acrylic Acid Copolymer Derived Nitrogen–Boron Codoped Carbon-Covered Na₃V₂(PO₄)₂F₃ as Cathode Material of High-Performance Sodium-Ion Batteries