Ruthenium‐Oxide‐Coated Sodium Vanadium Fluorophosphate Nanowires as High‐Power Cathode Materials for Sodium‐Ion Batteries

Peng, Manhua; Li, Biao; Yan, Huijun; Zhang, Dongtang; Wang, Xiayan; Xia, Dingguo; Guo, Guangsheng

doi:10.1002/anie.201411917

Cited by 142 publications

(92 citation statements)

References 27 publications

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“…Goodenough group prepared NVOPF/rGO sandwich structure as the SIB cathode by a facile one‐step solvothermal method, and a high reversible capacity (120 mAh g −1 at C/20) and good cycling stability (200 cycles with retention of 91.4% at C/10) were achieved. Peng et al synthesized RuO 2 ‐coated NVOPF nanowires with the diameter of ≈50 nm, and a high reversible capacity of 120 mAh g −1 at 1 C and 95 mAh g −1 at 20 C after 1000 cycles were demonstrated when used as an SIB cathode. Yin et al obtained 3D graphene skeleton encapsulated NVOPF nanoparticles through a spray‐drying method.…”

Section: Vanadium Phosphatesmentioning

confidence: 99%

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

Xiong

Meng

et al. 2020

Adv Funct Materials

335

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%

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

Xiong

Meng

et al. 2020

Adv Funct Materials

335

212

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“…[6][7][8] However, the larger Na + leads to sluggish ion diffusion and severe structural distortion of the host materials. [12][13][14] To date, a wide range of materials, such as metal oxides, [11,12,15,16] phosphates, [17][18][19][20][21][22] sulfates, [23][24][25] fluorophosphates, [26][27][28] and ferrocyanides, [29][30][31] have been investigated as [12][13][14] To date, a wide range of materials, such as metal oxides, [11,12,15,16] phosphates, [17][18][19][20][21][22] sulfates, [23][24][25] fluorophosphates, [26][27][28] and ferrocyanides, [29][30][31] have been investigated as…”

Section: Sodium-ion Batteriesmentioning

confidence: 99%

“…[21,22,[41][42][43] Herein, we report a detailed study of the formation of graphene-like cages structures on NVP nanoflake (NVP-NFs) arrays using the solid-state reaction approach in a molten surfactant-paraffin media. [12][13][14] To date, a wide range of materials, such as metal oxides, [11,12,15,16] phosphates, [17][18][19][20][21][22] sulfates, [23][24][25] fluorophosphates, [26][27][28] and ferrocyanides, [29][30][31] have been investigated as The graphene-like layers are connected each other to form a 3D conductive carbon network.…”

mentioning

confidence: 99%

Chemical Synthesis of 3D Graphene‐Like Cages for Sodium‐Ion Batteries Applications

Cao

Pan

Liu

et al. 2017

Advanced Energy Materials

121

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sodium hosts. Among these, sodium (Na) super ion conductor (NASICON) structured Na 3 V 2 (PO 4 ) 3 (NVP) is a good candidate cathode material due to its excellent structural stability, good thermal stability, and high energy density. [18,32] In addition, the NASICON structure also has an open 3D framework and large interstitial channels for fast Na + ion diffusion. However, similar to other polyanion compounds (i.e., Li 3 V 2 (PO 4 ) 3 and K 3 V 2 (PO 4 ) 3 ), [33,34] NVP suffers from intrinsically inferior electronic conductivity (about 10 −9 S cm −1 ).Two key strategies are applied to improve the conductivity of NVP. First, nanostructured NVP has been demonstrated to improve the sodium ion diffusion kinetics due to the reduced ion diffusion distance. [35][36][37] Zhou et al. reported template-assisted synthesis of nanostructured NVP 3D foams, which exhibit a capacity of 73 mA h g −1 at a rate of 100 C. [35] An et al. prepared NVP/C nanoflakes with high rate capability and excellent cycling stability. [36] Making NVP and carbon composites can also improve the electronic conductivity and electrochemical performances. Saravanan et al. reported the preparation of porous NVP/C with good rate capability and long cycle life (30000 cycles at 40C). [38] Zhu et al. designed NVP embedded in a porous carbon matrix with high rate capability of 44 mA h g −1 at 200C. [39] Klee et al. recently reported an oleic acid-based surfactant-assisted solid reaction method, which produced a uniform carbon coating on NVP nanoparticles and improved properties. [40] In addition, graphite-like carbon coating was applied by chemical vapor deposition or mechanical mixing. [21,22,[41][42][43] Herein, we report a detailed study of the formation of graphene-like cages structures on NVP nanoflake (NVP-NFs) arrays using the solid-state reaction approach in a molten surfactant-paraffin media. [44,45] As illustrated in Figure 1a, The NVP nanoflakes are uniformly capped with a graphene-like carbon layer, which are in situ generated in the calcination process. The graphene-like layers are connected each other to form a 3D conductive carbon network. The unique architecture provides a large contact area between electrode and electrolyte and fast electron diffusion pathway. As a cathode material for SIBs, the NVP-NFs encapsulated in the 3D graphene-like cages manifest close to theoretical capacity, excellent rate capability, and ultralong-life cycling performance. In addition, the NVP can Sodium (Na) super ion conductor structured Na 3 V 2 (PO 4 ) 3 (NVP) is extensively explored as cathode material for sodium-ion batteries (SIBs) due to its large interstitial channels for Na + migration. The synthesis of 3D graphene-like structure coated on NVP nanoflakes arrays via a one-pot, solid-state reaction in molten hydrocarbon is reported. The NVP nanoflakes are uniformly coated by the in situ generated 3D graphene-like layers with the thickness of 3 nm. As a cathode material, graphene covered NVP nanoflakes exhibit excellent electrochemical performances, includ...

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“…Mater. [58,59] Therefore, the electrochemical performance of the SIBs significantly depends on the type of crystal structure and its transitions during sodiation and desodiation. The cell capacity is proportionate to the amount of facile Na-ion intercalation and de-intercalation of the host material (anode or cathode).…”

Section: Sodium-ion Batteriesmentioning

confidence: 99%

Feasibility of Cathode Surface Coating Technology for High‐Energy Lithium‐ion and Beyond‐Lithium‐ion Batteries

et al. 2017

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Cathode material degradation during cycling is one of the key obstacles to upgrading lithium-ion and beyond-lithium-ion batteries for high-energy and varied-temperature applications. Herein, we highlight recent progress in material surface-coating as the foremost solution to resist the surface phase-transitions and cracking in cathode particles in mono-valent (Li, Na, K) and multi-valent (Mg, Ca, Al) ion batteries under high-voltage and varied-temperature conditions. Importantly, we shed light on the future of materials surface-coating technology with possible research directions. In this regard, we provide our viewpoint on a novel hybrid surface-coating strategy, which has been successfully evaluated in LiCoO -based-Li-ion cells under adverse conditions with industrial specifications for customer-demanding applications. The proposed coating strategy includes a first surface-coating of the as-prepared cathode powders (by sol-gel) and then an ultra-thin ceramic-oxide coating on their electrodes (by atomic-layer deposition). What makes it appealing for industry applications is that such a coating strategy can effectively maintain the integrity of materials under electro-mechanical stress, at the cathode particle and electrode- levels. Furthermore, it leads to improved energy-density and voltage retention at 4.55 V and 45 °C with highly loaded electrodes (≈24 mg.cm ). Finally, the development of this coating technology for beyond-lithium-ion batteries could be a major research challenge, but one that is viable.

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Ruthenium‐Oxide‐Coated Sodium Vanadium Fluorophosphate Nanowires as High‐Power Cathode Materials for Sodium‐Ion Batteries

Cited by 142 publications

References 27 publications

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

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

Chemical Synthesis of 3D Graphene‐Like Cages for Sodium‐Ion Batteries Applications

Feasibility of Cathode Surface Coating Technology for High‐Energy Lithium‐ion and Beyond‐Lithium‐ion Batteries

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