Nitrogen-doped graphene-decorated LiVPO4F nanocomposite as high-voltage cathode material for rechargeable lithium-ion batteries

Cui, Kai; Hu, Shuchun; Li, Yongkui

doi:10.1016/j.jpowsour.2016.06.058

Cited by 43 publications

(19 citation statements)

References 66 publications

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“…The typical vanadium fluorophosphates include LiVPO 4 F, NaVPO 4 F, KVPO 4 F, Na 3 V 2 (PO 4 ) 2 F 3 , Na 3 (VO) 2 (PO 4 ) 2 F, and Na 3 V 2 O 2 x (PO 4 ) 2 F 3−2 x . These kinds of electrode materials exhibit high output voltages, which is attributed to the strong inductive effect from the (PO 4 ) 3− polyanion and the highly electronegative F − anion . Besides, the additional fluorine atoms in the skeleton structures are beneficial to develop novel polyanion systems due to the stable VF bond .…”

Section: Vanadium Phosphatesmentioning

confidence: 99%

“…These kinds of electrode materials exhibit high output voltages, which is attributed to the strong inductive effect from the (PO 4 ) 3− polyanion and the highly electronegative F − anion . Besides, the additional fluorine atoms in the skeleton structures are beneficial to develop novel polyanion systems due to the stable VF bond . Like other phosphate cathodes, fluorophosphates generally suffer from low electronic conductivity .…”

Section: Vanadium Phosphatesmentioning

confidence: 99%

“…[259] Besides, the additional fluorine atoms in the skeleton structures are beneficial to develop novel polyanion systems due to the stable VF bond. [259,260] Like other phosphate cathodes, fluorophosphates generally suffer from low electronic conductivity. [261] Besides, synthesis of pure phase of several vanadium fluorophosphates is also a big challenge.…”

Section: Vanadium Fluorophosphatesmentioning

confidence: 99%

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Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Xiong

Meng

et al. 2020

Adv Funct Materials

316

212

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The emerging electrochemical energy storage systems beyond Li‐ion batteries, including Na/K/Mg/Ca/Zn/Al‐ion batteries, attract extensive interest as the development of Li‐ion batteries is seriously hindered by the scarce lithium resources. During the past years, large amounts of studies have focused on the investigation of various electrode materials toward emerging metal‐ion batteries to realize high energy density, high power density, and a long cycle life. In particular, vanadium‐based nanomaterials have received great attention. Vanadium‐based compounds have a big family with different structures, chemical compositions, and electrochemical properties, which provide huge possibilities for the development of emerging electrochemical energy storage. In this review, a comprehensive overview of the recent progresses of promising vanadium‐based nanomaterials for emerging metal‐ion batteries is presented. The vanadium‐based materials are classified into four groups: vanadium oxides, vanadates, vanadium phosphates, and oxygen‐free vanadium‐based compounds. The structures, electrochemical properties, and modification strategies are discussed. The structure–performance relationships and charge storage mechanisms are focused on. Finally, the perspectives about future directions of vanadium‐based nanomaterials for emerging energy storage devices are proposed. This review will provide comprehensive knowledge of vanadium‐based nanomaterials and shed light on their potential applications in emerging energy storage.

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Section: Vanadium Phosphatesmentioning

confidence: 99%

Section: Vanadium Phosphatesmentioning

confidence: 99%

Section: Vanadium Fluorophosphatesmentioning

confidence: 99%

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Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Xiong

Meng

et al. 2020

Adv Funct Materials

316

212

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“…However, the intensity ratio of the D and G bands ( I D / I G ) was ≈1.44, which can be used to determine the amount of defects and disorder in carbon materials. The peaks located at 1330 and 1520 cm −1 are relative to sp3‐form carbon, whereas the peaks at 1573 and 1598 cm −1 are relative to sp2‐form carbon . The carbon layer was formed by the agar powder through uniform mixing with NTSP‐P and high‐temperature calcination under an Ar atmosphere.…”

Section: Resultsmentioning

confidence: 99%

“…The peaks located at 1330 and 1520 cm À1 are relative to sp3-form carbon, whereas the peaks at 1573 and 1598 cm À1 are relative to sp2-form carbon. [31] The carbon layer was formed by the agar powder through uniform mixing with NTSP-P and high-temperature calcination under an Ar atmosphere. Compared to NTSP@C, no carbon peaks were observed in the pure NTP sample.…”

Section: Introductionmentioning

confidence: 99%

Hollow NaTi_1.9Sn_0.1(PO₄)₃@C Nanoparticles for Anodes of Sodium‐Ion Batteries with Superior Rate and Cycling Properties

et al. 2019

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Herein, two strategies are simultaneously used to synthesize the hollow carbon‐coated nanoparticles of NaTi1.9Sn0.1(PO4)3@C (NTSP@C). The porous morphology of NTST@C is controlled through a trace amount of tin doping while selecting a fire‐new carbon source. The NTSP@C materials present a nanosized structure with a hollow morphology, exhibiting a large specific surface area of ≈71.0 m2 g−1 and a average bore diameter of ≈26.4 nm. Moreover, the carbon layer is ≈5 nm thick with a mass ratio of 6.81%. The NTSP@C sample displays an ultrastrong rate capability (128.8 mA h g−1 at 0.1 C and 101.5 mA h g−1 at 10 C at 1.5–3.0 V) and a superior cycling performance (126.3–115.8 mA h g−1 after 300 cycles at 1 C for a retention ratio of 91.7% and 101.4–87.1 mA h g−1 after 2000 cycles at 10 C for a retention ratio of 85.9%). These excellent electrochemical performances are due to the nanosized structure, unique morphology, and thin carbon layer as a conductive medium. It is clear that the NTSP@C material is a promising anode material that can be incorporated into sodium‐ion batteries to achieve superior electrochemical performance.

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Nitrogenized 2D Covalent Organic Framework Decorated Ni‐Rich Single Crystal Cathode to Ameliorate the Electrochemical Performance of Lithium Batteries

Saleem

Majeed

Iqbal

et al. 2022

Adv Materials Inter

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Organic cathode materials for lithium‐ion batteries (LIBs) have elicited interest due to their wide‐ranging structures and finely regulated molecular levels. However, designing a cathode material with a high specific capacity, high rate‐performance, and long‐cycle life remains highly challenging. Herein, a nitrogenized 2D covalent organic framework (COF) with maximal active and minimal inactive groups is described and created by utilizing a coating material for single crystal LiNi0.78Mn0.12Co0.1O2 (SCNMC) cathodes for LIBs. The composite cathode delivers a high reversible capacity of 160.5 mAh g−1 at 1 C with a retention rate of 87.5% after 200 cycles. The cycled SCNMC@COF particles show no lattice gliding and micro‐cracks, demonstrating that the SC shape may considerably reduce anisotropic micro‐strain. This efficient, repeatable, and customizable method for producing SCNMC cathodes shall hasten their commercialization. The solid framework further ensures outstanding capacity retention and rate performance. According to density functional theory calculations, optimizing the loading of redox‐active groups in a stable network structure is an efficient technique for designing a stable structure and improving the cycling life of SCNCM cathode material.

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Nitrogen-doped graphene-decorated LiVPO4F nanocomposite as high-voltage cathode material for rechargeable lithium-ion batteries

Cited by 43 publications

References 66 publications

Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Hollow NaTi_1.9Sn_0.1(PO₄)₃@C Nanoparticles for Anodes of Sodium‐Ion Batteries with Superior Rate and Cycling Properties

Nitrogenized 2D Covalent Organic Framework Decorated Ni‐Rich Single Crystal Cathode to Ameliorate the Electrochemical Performance of Lithium Batteries

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Nitrogen-doped graphene-decorated LiVPO4F nanocomposite as high-voltage cathode material for rechargeable lithium-ion batteries

Cited by 43 publications

References 66 publications

Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries

Hollow NaTi1.9Sn0.1(PO4)3@C Nanoparticles for Anodes of Sodium‐Ion Batteries with Superior Rate and Cycling Properties

Nitrogenized 2D Covalent Organic Framework Decorated Ni‐Rich Single Crystal Cathode to Ameliorate the Electrochemical Performance of Lithium Batteries

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Product

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Hollow NaTi_1.9Sn_0.1(PO₄)₃@C Nanoparticles for Anodes of Sodium‐Ion Batteries with Superior Rate and Cycling Properties